Measurement Microphones
measure acoustic frequency, time and noise levels.
See Also: Microphones, Hydrophones, Mic
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Special microphones
G.R.A.S. Sound & Vibration A/S
Special microphones are often required for applications where there are particular requirements regarding the methods of measurements and configurations
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Low Noise Prepolarized Microphone
378A04
The 378A04 is a matched system that is comprised of a high sensitivity microphone and a low noise preamplifier that contains a built-in filter that enables the free-field response to remain flat over a wide frequency range. The system requires a minimum of 4 mA and measures to 6.5 dBA (5.5 dBA typical) within a cost efficient, prepolarized (0V) design. PCB's model 378A04, the industry's first prepolarized low noise microphone and preamplifier system allows you to measure extremely low amplitudes. In the past this was only possible with externally polarized solutions. With a typical noise floor of 5.5dBA, this microphone system delivers all of the benefits commonly associated with prepolarized systems.
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MEMS Microphone Test
The market is driving the need for improved voice recognition for security, automobile infotainment control, VoIP, accurate language translation, voice-activated consumer devices and high precision hearing aids. The latest next-generation microphones require highly accurate precision testing with SNR tests up to 78 dB with high parallelism, high UPH, in a high volume production environment.
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MEMS Microphones
A MEMS microphone is an electro-acoustic transducer housing a sensor (MEMS) and an application-specific integrated circuit (ASIC) in a single package.
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Ultrasound Microphone
M500
The M500 microphone is easily used with a Windows PC/tablet/laptop to record bat calls and other ultrasonic signals with the highest quality. For recording with the M500, the BatSound Touch or BatSound Touch Lite software is used.
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PXI Source And Measurement Unit Family
PXS840x
The PXS(e)840x is a high precision, high speed source and measurement unit, which is designed for automated high throughput testing.
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Microphone Preamplifier
426B31
Performance:Nominal Microphone Diameter:1/4" Frequency Response:3.98 to 126000 Hz3.98 to 126000 10.0 to 126000 Hz10.0 to 126000 HzElectrical Noise (A-weight)3.8 TEDS CompliantYes
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USB Modular Source Measure Unit
U2723A
The 3-channel 20V/120mA module can operate in a 4-quadrant operation. The channels could be connected in series or in parallel to achieve up to 60 V/360 mA. It uses the common non-proprietary standard high-speed USB 2.0 interface that provides ease of connectivity allowing users to set up and configure their tests swiftly with its plug and play feature.
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Measurement
AC Voltmeter
AC Voltmeter is used for measuring AC voltage. The software is capable of switching measurement modes (RMS or amplitude), but regardless of the selected mode the information about the current peak value is always displayed.
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Measurement
Field Uniformity
The purpose of our measurement is to characterise the properties (uniform field area, UFA) of the anechoic room according to IEC 61000-4-3 Ed. 3.1 b or EN 61000 4 3.
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Measurement
Phasemeter
Phasemeter is used for measuring the phase difference of two signals coming to the input channels of FFT spectrum analyzers. The upper line of the indicator displays the current phase difference value in degrees, the lower line – phase difference value in radians. It is possible to change the averaging of the displayed value (0.1 or 1 s) and to select necessary FFT spectrum analyzer channels.
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For accurate testing of headphones, microphones telephones and loudspeakers
Artificial Mouths, Ears, and Couplers
Listen supplies artificial mouths, ears and ear couplers from Brüel and Kjær, GRAS and more.
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Measurement
Ambient Noise
The Ambient Noise (AN) measurement is done in accordance with CISPR 22 and EN 50022
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Precision Condenser Microphone
377C01
Performance:Nominal Microphone Diameter:1/4"Open Circuit Sensitivity 2.0 Open Circuit Sensitivity (3 dB)-54 dB re 1 V/PaFrequency Range Inherent Noise<35 Temperature Coefficient of Sensitivity (+14 to +122FHousing Material: Stainless Alloy
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Microphone Pre-Amp Audio Interfaces
Analog Devices mic pre-amp audio interfaces provide a high fidelity, high performance solution for audio products. Specifications for this family include ultralow 1.5 dB noise figures, 140 dB gain range, and high gain capability. Operating in an extended industrial temperature range of –40°C to +85°C, this portfolio of mic pre-amp audio interfaces supports many applications, including precision instrumentation, active filters, low noise amplifier front ends, surveillance systems, computerized voice recognition, and a variety of other industrial and consumer products. As the first choice for serious audio engineers, Analog Devices mic pre-amp audio interfaces can give your applications the performance needed to meet the most demanding specifications.
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Gain-Compression Measurements
S93086B
The S93086B gain compression application (GCA) adds the software capabilities to the PNA Series B model network analyzers to evaluate the characteristics of compression point of an amplifier or frequency converter.
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Humidity Measurement
Martindale Electric Humidity Measurement - hygro-anemometer, hygro-moisture meter
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Temperature measurement
Thermometers and transmitters for the process industry. Endress+Hauser offers a complete assortment of compact thermometers, modular thermometers, thermowells, measurement inserts, transmitters and accessories for all types of process industries such as Oil & Gas, Chemicals, Food & Beverage, Life Sciences, Primaries & Metal, Power & Energy.
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Measurement
Multichannel Strain Gauge Meter
The Software Multichannel strain gauge meter is used for performing all types of strain gauge measurements using strain gauge sensors (for instance, force and torque sensors, bridge and semi-bridge circuits based on resistive strain sensors), strain measurement data acquisition modules ZET 017-T and digital strain gauge sensors of ZETSENSOR series. The program enables simultaneous processing of up to 128 measuring channels using strain gauge station and up to 500 measuring channels in the case if digital sensors are used.
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Specialty Test And Measurement Microphones
When acoustic measurements need to be made in demanding environments and applications, a variety of PCB® specialty microphones are available.
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Gravity Measurement
Quantum gravity measurement is emerging as a new frontier in sensing, bringing the ability to passively detect objects and voids, through difficult to penetrate materials such as soil, rock, lead and water. Gravity measurement using cold atom interferometers is set to revolutionise nearly all industries from civil to oil and gas, mining to maritime, and medical to defence.
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Measurement
Torsiograph
Torsiograph is used for measuring the rotation non-uniformity in rotating parts of various mechanisms. Torsiograph generates virtual channels for displacement and displacement velocity. These channels are available for further analysis by ZETLAB programs, e.g. for displaying on the oscillograph.
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Calibration And Measurement
Ectron has a long tradition dating back to 1964 in being the industry leader in supplying super high precision, highly reliable and accurate Metrology, Simulators/Calibrators products.
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SAR Measurements
SAR measurements, ie the measurement of the specific absorption rate, checks the amount of radiated high-frequency energy that a human body z. B. is exposed while using a mobile phone, laptop, data card. SAR measurements enable an assessment of the relative safety of radio devices with low power (low-power transmitters), which are used in close proximity to the human body.
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Temperature Measurements
Temperature is one of the most common types of measured quantities. With m+p Coda, you can measure temperature in various environments and for various test requirements. It also addresses demanding distributed measurement applications over large distances.
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Gain-Compression Measurements
S95086B
The S95086B Gain-Compression Measurement (GCA) software provides fast and accurate input power, output power, gain, and phase at the compression point of an amplifier or frequency converter over a specified frequency and power range. With a simple setup, GCA reduces test times through an easy-to-use, fast, and accurate SMART Sweep. GCA also includes a guided calibration that corrects for absolute power levels, frequency response, and mismatch errors.
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Electrochemical Measurements
A portable pH-meter from CHAUVIN ARNOUX is ideal for mobile applications: in the field, in the laboratory or in production. It can be used for quick, accurate, professional measurements of pH, Redox potential and temperature.
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Ultrasound Measurements
Is sound waves with frequencies higher than the upper audible limit of human hearing. Ultrasound is no different from 'normal' (audible) sound in its physical properties, except in that humans cannot hear it. Ultrasound devices operate with frequencies from 20 kHz up to several gigahertz.Ultrasonic devices are used to detect objects and measure distances. Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws.
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Measuring Benches
• Modern design and Bluetooth® transmission integrated• The bench tables are designed to check dimensions up to 50 mm (depends on model)• These bench tables can be equipped with different kind of tables to fit your needs as well as with several types of anvils of any shapes• A ball bearing, an adjustable and reversible measuring force, as well as many other features and accessories make these tables a must for your workshop or your inspection room• Adjustable measuring force
