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Sound
tympanum, bioacoustic sensed pressure waves.
See Also: Ultrasound, Audio, Infrasound, Reverberation, Acoustic, Sound Calibration
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Vibration Testing
Response Dynamics Vibration Engineering, Inc.
We most often characterize a problem first and work from known conditions, and stay in “the known” as we proceed by making sense of what we observe as we move forward. We test and analyze the change in dynamics we are trying to create in real-time, on site, and often make changes to our experimental test plan on the fly as we discover how a system is actually behaving. In doing so we often get meaningful results from which we can make sound engineering decisions in a short time frame. We don't just make measurements and spit out data. We help identify the problem and propose solutions.
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HDMI / 3G Reference Media Player
VQS-300
Versatile destop/rackmount unit, loaded with unique sophisticated set of static and dynamic test patterns - see more details in separate VQL for VQS Presentation Multi-format HDMI and 3G-SDI outputs, digital and analog AV outputs 2.5 ppm accurate system clock to meet full 3G-SDI broadcast specs Front side bay for detachable SATA HDD – up to 2 TB of content VQL - Library of unique sophisticated dynamic test patterns and sequences LIve clips and 3D Video Tests, 5.1 Surround Sound and LR Stereo Audio Tests All commonly used resolutions, aspect ratios, frame rates and interlace modes Easy expansion with any external USB storage device: BD/DVD, HDD, FD.
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Acoustic Probe
AA-Ultrasonic
The AA-Ultrasonic acoustic probe is designed for use on air insulated terminations where a clear sound path between the electrically stressed insulation and the probe is present. The sensor is extremely sensitive and can detect activity below 10pC. The probe has a magnetic base to allow coupling to steel enclosures and a swivel head as so the detecting sensor can be aimed directly at the HV point. Corona in air and surface tracking can seriously damage high voltage insulating surfaces in a way that will ultimately lead to flashover and complete failure of the insulator. This discharge activity creates acoustic emission that can be detected using a high frequency sensor. The magnitude of the acoustic emission is indicative of the degree and severity of the discharge activity.
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Ultrasonic Concrete Testing
This category comprises the range of instruments that use sound or stress waves in order to determine the properties of concrete and other materials non-destructively. The first and most widely used System is our V-Meter, which utilizes the ultrasonic pulse velocity method for evaluating construction materials in the field. Transducers are available for a variety of frequencies from 24 KHz to 500 KHz. This unit has also been modified to suit the special needs of ceramics users and can be found as the Ultrapulse. The PIES, our revolutionary Portable Impact-Echo System, is an advanced instrument for non-destructive detection of flaws and defects in a variety of civil infrastructures ranging from bridges, parking structures and buildings to dams, piles, tunnels, tanks and marine structures.
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Digital Hybrid Wireless® Compact Receiver
UCR411a
The UCR411A receiver provides professional performance and a versatile feature set in a compact design for field and location production. All settings are made from the front panel with a powerful LCD interface, making the unit ideal for use on sound carts, in portable bags, and in rack-mount multi-couplers. To alleviate interference problems in an increasingly congested RF spectrum, an RF spectrum analyzer is built into the receiver. The receiver tunes across its 25.6 MHz tuning range and records RF activity with markers on the LCD screen. Finding clear operating frequencies is a quick, simple process. The UCR411A is compatible with all 400 Series Lectrosonics wireless transmitters (and some other transmitter types) and can be powered with internal 9V batteries or external DC.
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Production Line Acoustic Test Chamber
PLATC
The Production Line Acoustic Test Chamber from GRAS is designed for quick and qualified acoustic test of cell phones, tablet PCs, Bluetooth speaker systems etc., including frequency response, THD, Rub & Buzz and microphone test using optional sound source. The chamber has a number of connections for injecting test and control signals to the test object (DUT).Benefits include:Repeatable testing and reliable dataEasy open/close for quick and safe change of DUTFlexible test jig for easy adjustment to new DUTFlexible microphone mounting for both front/backside speakers as well as edge-mounted speakersHigh quality, high sensitive 1/4” CCP measurementmicrophone included (G.R.A.S. 46BL)Individually calibrated frequency response** Compared to reference measurement in anechoic room
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Sensitivity Testing
Response Dynamics Vibration Engineering, Inc.
Sensitivity testing involves making predictions of system response to environmental disturbance. The significance and importance of the system sensitivity estimates is very often overlooked. This gets companies in trouble and is one of the top reasons why we are called upon to provide timely solutions. Most teams are focused on getting their product to work and get it out the door. An engineering team will often not know how to quantify what to expect in the customer environment and how to test for those expected disturbances. We design hundreds of sensitivity tests and can explain the important concepts to consider in designing the tests and making the right measurements that allow for sound estimates of system response. This is an important expertise we use in our vibration, acoustic and magnetic field consulting services.
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Bench Power Supply, Single, Adjustable, Fixed, 1 Output, 13.3 V, 14.5 V, 15 A
72-8110
The 72-8110 is a compact switch mode Power Supply features a very compact footprint that makes it an ideal match for portable communications equipment. Its 50% duty cycle surge rating is comes in handy in demanding transmitting situations. It is also perfect for two-way radio (including HF) and audio equipment including auto sound and multimedia systems. This fixed voltage switch mode power supply is designed with high RFI stability and is especially suitable for two-way radio and communications equipment. Constant current circuitry is used for overload, short-circuit and over-temperature protection. Output current and voltage drop to a safe level when any fault occurs. This power supply also has over voltage protection to prevent connected equipment from damage.
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Workstation For Acoustic & Vibration Engineering
imc WAVE 2022
imc WAVE is a modular, powerful software platform for noise and vibration analysis (NVH analysis). From noise investigations in road tests to structural analyses on the test bench and vibration tests on machines: with different imc WAVE analyzers, you can evaluate a wide range of applications without having to be an expert yourself. In this way, you can also easily and reliably obtain standard-compliant analysis from the fields of noise and sound power analysis, structure analysis as well as the evaluation of the analysis of vibrations and of rotating machines. imc WAVE guides you step by step through the settings, from device configuration to calibration and measurement. In the end, you evaluate your data professionally and then receive a report that is ready to print. The modular software specializes in the following topics.
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Squeak And Rattle Test Solutions
Annoying noises like squeaks and rattles have become a significant quality issue for customers of passenger vehicles, light & heavy commercial vehicles, increasingly off-road vehicles, and even airplane applications. These unwanted sounds are a problem for numerous reasons including customer dissatisfaction, sizeable warranty expense, and the overlying difficulty to diagnose and fix. MB Dynamics offers an innovative line of Buzz, Squeak & Rattle (BSR) or Squeak and Rattle (S&R) Test Solutions, focused on helping to eliminate annoying noises through prevention, design verification testing, and production verification testing, before the product reaches the customer.
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Vibration Meters
A vibration meter is used in manufacturing for machine condition monitoring, product testing and quality assurance. Many machine maintenance technicians use vibration meter devices in tandem with sound level meters to analyze frequency. A vibration meter also can be used in civil engineering to measure the vibration of structures such as buildings, roads and bridges. In addition, specialized vibration meter devices can be used to measure the vibration of the human body. Any vibration meter will measure one or more of the following parameters: vibration acceleration, vibration velocity (speed) and / or vibration displacement.A vibration meter is typically a portable device with a memory for storing measurements. Most vibration meter models feature a built-in data logger for collecting and recording vibration measurement data over time. In this way, vibration measurement data can be acquired with great precision.
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Non-Contact Voltage Detector
273 HP
Standard Electric Works Co., Ltd
● 2 ranges for selection : LOW 50V~1.5kV HIGH 1.5kV~132kV● There is no power consumption in off mode : 0uA● Nice mechanical slide switch for function selection : HIGH / OFF / LOW ● The power consumption in low voltage detection mode : Less than 20mA● The power consumption in high voltage detection mode : Less than 20mA● Bright LED and audible alarm sound when voltage is present.● Lightweight, robust and compact.● Efficient and easy to use● Users have to use the Hot Stick when test high voltages between 1.5kV~132kV.● SEW provides nice optional accessories of Hot Sticks HS-175 and HS-120 for high voltage detection.● Optional accessories : HS-175 Telescopic hot stick (triangle-type) HS-120 Hot stick
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SNAPSHOT
PH-200
The Snapshot cable checker gives professionals and layman the ability to check cables instantly upon plug-in, with no buttons pressed or displays read. With its built-in memory, the Snapshot simply checks each cable plugged in against a correctly-configured cable pre-set by the user, and indicates the cable’s status with a sound. For pin-by-pin cable checking, the 〝standard check〞mode offers a plain LED-displayed check of the cable’s pins, checked automatically or manually. The Snapshot also generates a tone along the length of cables, making finding and following the cable with a tone probe a snap. A remote unit allows testing of already-installed cables, and a built-in line tester verifies phone line polarity and detects voltage before it threatens the safety of the test unit. A shield-test feature automatically tests cable shielding and a battery-low indicator prevents misreading results.
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PDIV Tester for EV Motor
PDIV 500-T
Shanghai Dean Electrical Co., Ltd
Differing from partial discharge with high frequency pulse which produce sound and light phenomenon, the power frequency AC voltage reaches a certain threshold, can only produce instantaneous current leakage around the tested sample, it can be detected through discharge capacity (unit: PC) to evaluate partial discharge phenomena..The instrument PDIV 500-T is designed to put samples such as enameled wire, insulation paper/film, and electric motor stator in the High temperature / humidity environment chamber, applying a power frequency voltage with a programed rising speed, and prefect ground connection must be guaranteed , through the coupling capacitor as the medium, the continuous detection of discharge capacity against the voltages will create formulation between the Voltages and discharge capacities (pc), the software will find the discharge voltage threshold called PDIV.
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3D Multibeam Scanning Sonar
ProScan™
Teledyne BlueView's 3D Multibeam Scanning Sonar user interface software. ProScan connects to the sonar and pan/tilt unit, configures each scan, generates full 3D point clouds, and optionally streams output to third party hydrographic software for fusion with other sensors. Data is recorded in multiple file formats: .son (raw acoustic data file for ProScan reprocessing), .txt (plain text record of all point locations and positional data) and .xyzi (industry standard xyzi data for 3D point cloud viewers, registration software, etc.). In playback mode, users can review and reprocess scans to modify sound speed, intensity threshold, multidetect and range settings as needed. ProScan coupled with Teledyne PDS MotionScan, pitch, roll heading and position sensors provides the capability to scan areas to collect 3D point clouds while correcting for motion.
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Ultrasonic & Mass Flow Meters
GAOTek offers high quality, affordable, secure and accurate Ultrasonic Flow Meters for sale to the United States, Canada and globally. Ultrasonic Flow Meters often have a sending and a receiving transducer for measuring the velocity of fluids to accurately calculate the flow of volume in a pipe by using sound waves, acoustic waves or vibrations with a frequency of >20 KHz. GAOTek offers a variety of top-notch Ultrasonic Flow Meters designed for different environments, from wide pipes to an all liquid environment, such as sea water, oil, sewage, alcohol, et al. GAOTek’s easy to use Ultrasonic Flow Meters come with a built-in printer and a built-in data logger. They provide accurate readings and have an accuracy rate of ±1% at rates greater than 0.2mps. They also offer multi-language menu selections, long lasting battery life for continuous usage, large LCD screens, and a huge storage.
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Test And Measurement
Test and Measurement supplies test, measurement, and analysis equipment and software for product design optimisation, manufacturing control, and environmental monitoring systems. Markets are principally the aerospace, automotive, consumer electronics and oil and gas industries. For customers in the automotive and aerospace industries, our products and applications help them to design and test new products whilst reducing time to market. In consumer electronics, our equipment and software enable customers to refine the performance and accuracy of their products and to test them in the production process. In the environmental monitoring market, the desire for higher standards of community comfort is creating additional demand. In the oil and gas industries, our products and solutions optimise the recovery rates of oil and gas reservoirs and support the development of cost-efficient extraction processes in a safe manner that minimises the impact on the local environment. The operating companies in this segment are Brüel & Kjær Sound & Vibration, ESG Solutions, HBM and Millbrook.
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Non-Contact H.V. Detector
300 HP
Standard Electric Works Co., Ltd
● Protection class : IP66.● 3 LED indicators in a circle for easier viewing in any directions (360° LED indication).● 8 voltage settings : 240V, 2kV, 6kV, 11kV, 22kV, 33kV, 132kV, 275kV.● High bright LED visual indication.● With the longer shelter to make the 3 LED indicators brighter under the sun.● Sound indication.● The maximum voltage setting can be 500kV .● Self-test function.● Power source : 1.5V "C" type battery × 3.● High impact nylon casing.● Non-contact work by proximity.● Compatible with most hot sticks.● Lightweight, robust & compact. ● Suitable for indoor and outdoor use.● Easy access to batteries.● Special ranges are available upon request. ● The maximum detection range can be 500kV.● Meets EN 61326-1 CISPR 11 EN 61000-4-2 EN 61000-4-3 EN 61000-4-8
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Integrated Ultrasonic Level Gauge
HR9100T
HighReach Measuring & Controlling System Co.,Ltd
1. The circuit design selects high-quality power module components from the power supply part to select high-stability and reliable devices, which can completely replace the same type of imported instruments. 2. The patented sonic intelligent technology software can perform intelligent echo analysis the debugging and the any OTHER Special the without Steps. This Technology has Dynamic Thinking at The Functions of the Analysis and Dynamic. 3. Sound Wave at The Patented Technology of Our Company Makes at The Accuracy of at The Instrument Greatly Improved, at The Precision Liquid Level Reaches 0.25%, and IT CAN Resist various kinds of interference waves.4. This instrument is a kind of non-contact instrument, which does not directly contact with liquid., the instrument has a variety of installation methods. The user can use this manual to calibrate the instrument. 5. All input and output lines Of the instrument have lightning protection and short circuit protection.
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Electromagnetic Radiation Tester
Model KM 196
Kusam Electrical Industries Limited
• Unit : Electric Field : V/m; Magnetic Field : mT• Precision : Electric Field : 1V/m; Magnetic Field : 0.01 mT• Range : Electric Field : 1V/m ~ 1999V/m.• Magnetic Field : 0.01 mT ~ 19.99 mT• Alarm Threshold : Electric Field : 40V/m, Magnetic Field : 0.4 mT• Reading Display : 3½ Digit Digital LCD display with Backlight.• Frequency Range : 5Hz ~ 3500MHZ• Sampling Time : About 0.4 second.• Measuring Mode : Dual Mode• Overload Alert : “1” appears on LCD• Sound & Light Alarm• Data Hold function.• Auto Power Off.• Average & Peak measurement.• Low Battery Indication.• Operating Temperature & Humidity : 0°C ~ 50°C; below 80%RH.• Power battery : 9V Battery.• Dimension : 63.6 x 31 x 125.8mm• Weight : Approx. 146g.
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Steering Test Equipment: Software & Hardware
MB Dynamics delivers steering test equipment to help fulfill a myriad of application test requirements, or jobs-to-be-done. The steering test equipment consists of software for multi-test-head, synchronized MIMO closed-loop control and data acquisition; rotary servo motors for attachment to a steering spline or wheel; electrodynamic shaker systems; long-stroke linear motor actuators; pneumatic actuators; column stands for mounting steering column; gear fixture for mounting the gear; instrumentation (force, torque, displacement, rotary position, acoustic, acceleration); fixtures for mounting gears and columns; brackets, clamps, and fixtures for holding test items; jounce/rebound fixtures and tilt positioners for aligning input forces with tie rods at angles; software and associated data acquisition hardware up to 16 channels for recording, analysis and evaluation of in-lab steering noises and accelerations, road load data acquisition, and general Sound & Vibration analysis; and engineering services to accelerate test effectiveness.
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Audio + Vision Generation and Monitoring
Test Chest 3G (Multi Function Test)
Quick and very easy to use, the amazing Test Chest boasts instantaneous Audio + Video generation and Monitoring. NO tedious boot-up means Test Chest is “First out of the blocks” every time by 10s of seconds, and it’s intuitive touch-screen speeds Engineers to the required function, saving precious time and giving their investigations a real head start. 10bit precision signal generation is standard with Test Chest, as are the analysis utilities which are displayed on it’s superb 5” high resolution touch screen Monitor screen, and stereo sound too (when present).Ease of use and protection whilst in service are serious matters, so Test Chest is fitted with ‘Ez-Grip’ resillent rubber end sleeves; these assist grip, and provide additional protection against everyday knocks and bumps. During transportation your Test Chest’s tough extruded alloy housing is cradled within a customised go-anywhere foam lined ABS Carry-case for complete protection.
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Telos Systems
Telos Systems—part of the Telos Alliance—was founded in 1985 by Steve Church, a talk show radio host and engineer who was dissatisfied with the poor quality of the on-air telephone calls on his shows. He was also an Engineer determined to do something about it. The resulting Telos 10 telephone interface system was a great success, inspiring Steve to build a business to make and sell the systems. Telos Systems has since become the industry leader in broadcast telephone systems and IP and ISDN codecs. The breakthrough Telos Zephyr audio codec, for example, is one of the most successful digital broadcast products in history, with more than 21,000 in use worldwide. Telos telephone hybrids and on-air talk show systems set the performance benchmark for the industry, and we continue to pioneer groundbreaking technology that pushes boundaries and gives broadcasters the telephony solutions they need for reliability, efficiency, and the best possible sound quality.
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Leeb Hardness Tester
THL210
LCD display of 128×64 matrix with back-light, showing all functions and parameters. Converts to all common hardness scales (HV,HB,HRC,HRB,HRA,HS). English displaying and easy and convenient menu operation. Powerful PC Software available and USB 1.0 interface and USB with Protective Membrane. 7 types of Impact Device optional, which don't need to be recalibrated when changing them. Memory of 600 groups data(impact times:32~1). Lower limit setting and sound alarm. Material of “cast steel” is added; HB values can be read out directly when D/DC impact device is used to measure “cast steel” work piece. Printer be separated from main unit and copies of testing results can be printed as required. Normal battery AAA and big power store while USB connected and charging controlling circuit. Inbuilt function of Software Calibration.
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Medium-size Reverberation Chamber
E-Series
The E medium-size multicavity Reverberation Chamber Series represents that state-of-the-art in reverberation chamber technology. The E-Series can make single measurements, batch tests, protocols or campaign tests for different frequency bands, different technologies and different channel models, running overnight without human intervention. Embedded frequency-, mode-, source- and platform-stirring in a double-shielded set of cavities allow Passive MIMO (Efficiency, Correlation, Diversity Gain, MIMO Capacity and others), Active MIMO OTA (TRP, TIS, TPUT, MTS, CQI, M2TxDT, RSRP, MCL and others) and Time-Domain MIMO (DL/UL TCP/UDP TPUT, RMS DS, STD, PL, CBW, Mute%, eNodeB, VDT-OTA) measurements up to 8x8 and 8DLCC to be performed for antennas and devices up to 50cm and 50kg ranging from 2G to 4G, covering all available cellular and wireless technologies to date, including wearables devices, sound acoustic mute, WLAN and W-IoT testing. There is no RC in the market more advanced than the E-Series.
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Integrated/Separated Explosion-Proof Ultrasonic Level Gauge
HR9100E
HighReach Measuring & Controlling System Co.,Ltd
1. Safety / use of die-cast aluminum alloy waterproof, explosion-proof shell; the explosion-proof grade of the instrument reaches Exd (ia) IIBT4 2. stable and reliable / we choose high-quality module key components from the power supply Part of The Circuit Design Stable and Reliable Devices CAN Completely Replace imported Instruments. 3. Patented Technology / Ultrasonic Intelligent Software CAN with Carry OUT Intelligent echo Analysis, the without the any the debugging and OTHER Special Steps, the this Technology has The function of Dynamic Thinking, Dynamic Analysis 4. High precision / sound wave intelligent patent technology owned by our company, so that The accuracy of the ultrasonic level gauge is greatly improved, the liquid level accuracy reaches 0.3%, it can resist various interference waves, the failure rate is low, the installation is easy, and the maintenance is easy. The instrument is a non-contact instrument and does not directly contact with liquid. Users can use this manual to calibrate the instrument. 6. The protection level of multiple protection/instrument reaches IP65; all output and input lines have lightning protection and short circuit protection.
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Audio Test Software
1. Distortion free stimulus even the equalized stimulus.2. Unlimited channels acquisition and processing. (Hardware limited)3. Human correlated listening test(Bark Scale intensity chart). (Requires large memory)4. Hi Res intensity chart for buzz/pop detection. (Requires large memory)5. Auto equalization method with target dBSPL accuracy.6. TCP client for test framework integration.7. Easy limits and logs development.8. Easy logs visualization module.9. Auto waveform alignment and triggering.(Upto single point alignment accuracy)10. Easy regression testing via TCP client.11. Standard Magnitude, Phase, THD, THD+N, Rubb&Buzz, Pink Noise, Noise Tests.12. Unlimited calibrations and equalization for scaling to different products and stations.13. Lowest test system and test sequence development times.14. Requires minimal training and debugging.15. Automatically avoid Reference speaker play and stop pops.16. WMD/ASIO driver compatible sound cards supported.(B&K 3670 recommended)
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GeoSwath Module
The GeoSwath Plus Sonar Module contains a wide-swath bathymetric sonar suitable for a range of survey and inspection tasks. The GeoSwath Plus is a 500kHz interferometric sonar, or phase detecting bathymetric sonar (PDBS) from Kongsberg GeoAcoustics. Boat-mounted GeoSwath sonars are used worldwide for high accuracy surveys including port and harbour navigation and environmental mapping: the Gavia’s GeoSwath module makes this capability available in a commercial AUV. The GeoSwath Plus offers: wide swath coverage of up to 12 times the AUV altitude when near the seabed; integrated bathymetry with simultaneous true digital side scan; high depth resolution suitable for IHO survey standards; as well as the accuracy and repeatability of a boat-mount hydrographic survey system. Like most of the survey-grade sensors on the Gavia AUV, the GeoSwath data is time-synchronised with the AUV master clock using the vehicle PPS/ZDA system. Benefits of the GeoSwath AUV module include ease of deployment, ease of use, reducing survey time, and the ability to take a 500kHz high-resolution sonar down to targets in 1000m of water. The GeoSwath Plus post-processing software (provided as standard with the system) allows a user to inspect and process the data, create and inspect digital terrain models, and create basic sonar mosaics. Several other commercial post-processing software packages are also available, please ask for details. Note that for best results the GeoSwath Module should be deployed with a direct-reading sound velocity sensor (option) in the Control Module, and one of the high-accuracy INS/DVL Navigation Modules for motion sensing.