Active Filters
Require power to operate, using active devices and passive components in a frequency-selective network, only passing certain frequencies.
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Product
Filter Design Software
QuickFil
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QuickFil is a software for designing passive electronic filters. The result is an optimized circuit of inductors (L)and capacitors
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Product
Filters & Switch Filter Banks
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PMI offers the highest quality filters, switch filter banks, filter assemblies, diplexers, multiplexers for industrial and military applications in the frequency range of DC to 40 GHz. All PMI’s Switch Filter Banks use PMI’s proprietary Solid-state Switch designs, which offer high speed and improved performance. While there are many standard models, PMI can design and build to meet your specifications.
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Product
Low-Pass Filters
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Low-Pass Filters from Analog Devices are specifically designed to reject higher frequency noise and unwanted signals while allowing desired signals to pass through. Analog Devices offers an extensive line of continuous time and clock tunable (switched capacitor) devices preconfigured for low-pass filtering. These integrated low pass filters feature a wide range of cutoff frequencies and response characteristics.
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Product
Active Transmitter & Receiver Modules
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MAT active device transmitter modules permit the direct coupling of signals into fibers terminated with E-2000™ connectors. MAR receivers perform the reverse receiving function. Both types are carefully designed to offer a high degree of optical stability over widely-varying environmental and mechanical-stress conditions. Rugged construction ensures stable, repeatable operation over 1000 mate/demate cycles. MAT and MAR incorporate the following features: positive latching mechanism, spring-loaded shutters for eye-safety and compact footprint.
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Product
Bandwidth-Tunable Filters
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Through cascading a low-pass tunable edge filter with a long-pass tunable edge filter, one can achieve a new type of bandwidth-tunable filter whose passband width is variable while its center wavelength is still tunable. With such a device, you can
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Product
Water Activity Meter
LD-LWTM-A10
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Water Activity MeterLD-LWTM-A10is a real portable water activity meter, with a weight of only 1.5 kg, lighter than a mobile phone. It has 0 to 1.0 aw range and offers operating temperature range from 0 to 50˚C. Designed with 6 bit backlight LCD digital display and integrated nonconductive humidity sensor. It measures fast activity of water within 5 minutes and under-voltage alarm indication function. It is easy to measure water activity anytime and anywhere also used in free water in the state of food balance.
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Product
Neutron Activation Analysis
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Neutron Activation Analysis (NAA) is one of the most sensitive analytical techniques used for multi-element analysis available today. The NAA procedure is capable of providing both quantitative and qualitative results for individual elements, with sensitivities that can be superior to those possible by any other analytical technique. Elemental Analysis Incorporated (EAI), as an innovator in the development and application of radio-nuclear chemistry analytical techniques, now offers its clients the ability to analyze some 75 individual elements (including certain organic elements) by NAA at trace and ultra-trace concentrations. Moreover, by developing scientific liaisons with selected nuclear reactor sites in North America, EAI is able to offer customers the expertise and capabilities of the premier scientists and research facilities available today. Combined with EAI’s tradition of excellence in customer service and technical assistance, EAI is uniquely positioned to assist clients with timely, cost-effective, and reliable trace element analysis for almost every conceivable field of industry or scientific research.
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Product
Third Harmonic Filter
HBF-T
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Lifasa - International Capacitors, SA
HBF-T filters are designed to block the 3rd harmonic, reducing the neutral currents in three-phase installations where there are installed harmonic generating loads connected between phase and neutral. It is basically passive filters based on a parallel combination of inductance and capacitor.
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Product
Broadcast Filters FM
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RFS bandpass filters are primarily used as part of multi-channel combiner facilities but can also be used to eliminate spurious emissions and increase isolation between co-sited services.
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Product
Noise Activated Warning Signs
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Signs within the workplace that warn of high noise levels are common place as they help ensure that employees, visitors and the public are aware and, if required, wearing ear protectors. This type of signage is ideal when noise levels are stable and consistent.
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Product
RF Filters
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Smiths Interconnect is committed to providing technically advanced, high quality “state-of-the-art” RF Filters, Multiplexers, Switched Filter Banks, and Integrated assemblies, from 100 KHz to 65 GHz. All products are subject to the same rigorous design, manufacturing, and inspection criteria. Regardless of the application, our internal process and procedures help ensure that all products are fully compliant to all specifications. Our R & D activities are constantly evaluating new materials, plating techniques, and manufacturing processes to offer the highest performing components available today.
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Product
Automated Filter Tester
8127
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The Automated Filter Tester 8127 is designed to comply with commercial respirator standards around the globe and has a proven track record of durability, reliability, and minimal maintenance, meeting the demanding requirements of manufacturing and quality control environments. Whether you are looking for a stand-alone tester to check a few filters per day or need to integrate your tester in an automated, high volume production line, CERTITEST AFT’s are up to the challenge
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Product
GPS Filter Amplifiers
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Mercury Systems’ family of GPS filters/amplifiers is the right choice for your high reliability GPS receiver. Whether your application is ground, airborne, missile or launch/reentry vehicle, you can trust the technology behind these advanced products. Custom designs including multiple outputs and integrated receiver protection limiters are also available.
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Product
Active Vibration Isolation
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Integrated Dynamics Engineering
This includes Passive and Active vibration isolation modules. Our vast number of advanced solutions – from compact Passive LC series to the TCN Active series expanding to the cutting edge most advanced in vacuum NGI series – provide options for every difficult application issue that exists today. Since seismic vibrations tend to be random, all frequencies need to be addressed.
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Product
Differential Active Probe, 250 MHz
DP0010A
Signal Probe
The Keysight DP0010A is the 250 MHz model of the DP001xA Series differential active probes. These probes provide the superior general-purpose differential signal measurements required for many of today’s high-speed power-related measurements such as motor drives, automotive differential bus measurements, and high-speed digital system designs.
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Product
Tunable Bandpass Filters
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Bandpass Filters are available as narrow band filters or wideband filters, supporting bandwidths from .1% to 200%, in configurations of 2 to 18 sections. Filters are available in a Q range of 250 to 10,000.
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Product
Optical Filter Sets
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Our filter sets support a great range of fluorophores for microscopes and imaging systems. Patented design techniques drive some of the most spectrally sophisticated optical filters on the market. High transmission, steep edges, precise spectral edge placement, and optimized blocking combine for more reliable measurements. A wide selection of individual bandpass filters and dichroic beam-splitters support unique applications, and world-class manufacturing and cutting-edge metrology ensure consistent performance that always meets specifications.
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Product
Individual Optical Filters
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Our comprehensive line of Semrock optical filters helps your design attain the best signal-to-noise ratios. Steep spectral edges maximize useable bandwidth, and high transmission or reflection captures the brightest images with best-in-class Flatness. Deep and extended blocking are optimized for your application, minimizing background and crosstalk while reducing cost. Select from the extensive catalog or go with a custom filter to your exact specifications, and remain confident of uncompromising quality, reliability, and reproducible results.
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Product
LCL Filters
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LCL Type Harmonic Filter Modules are used to filter out the input current harmonics of the Motor Drives having six-pulse diode/thyristor rectifiers, where harmonic current distortion exceeds the limits defined in standards.
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Product
BenchMate Active Air Vibration Control
2212 Series
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BenchMate Vibration-Free Platforms enhance the performance of precision tabletop equipment.The 2212 Series is an Active-Air design that requires a source of compressed air (not included). It is a self-leveling unit and recommended for regular use.
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Product
Active Air Speed Transmitters
HD2903T / HD29V3T
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Active air speed transmitters for ducts. Air speed, air speed and temperature, air speed, temperature and relative humidity. Analog output 4…20mA or 0…10VDC. Several Probes type lenghts available.
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Product
Antenna, Active Loop
EM-6869 | 9 KHz – 50 MHz
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The Electro-Metrics EM-6869 Active Loop Antenna is used with any receiver or spectrum analyzer with 50 ohm input and covers the frequency range of 9 kHz to 50 MHz.
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Product
High-Power Tunable Filter
CB503
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The need for tunable filter technology originates from the fact that high power communication systems and IED Jammer transmitters severely limit the use of tactical radio communication systems on the battlefield.This clash within the radio’s spectrum during tactical missions is often de-conflicted using fixed high Q, high power RF bandpass and bandstop filters installed prior to mission. This can limit operational effectiveness due to the potentially large number of fixed filters required within the allocated radio communication channels, which need be transported, stored in the field, and fitted by trained personnel. Many of these fixed filters centred within the octave wide tuning range could be replaced by a single high-Q tunable filter.
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Product
High Impedance Active Probes
18C & 19C
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High impedance probes, PICOPROBE® MODEL 18C and MODEL 19C, combine the most advanced MOS and bipolar technologies with special, low capacitance packaging techniques to achieve truly remarkable electronic measurement capabilities. While being manufactured each instrument is individually optimized for the best possible performance. The extremely low input capacitance, high input impedance, and almost negligible input leakage current permits the direct probing of even the most sensitive MOS dynamic nodes. At the same time, the full dc capability of this Picoprobe coupled with the high speed capability permits the full characterization of circuits.
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Product
Broadcast Filters VHF TV
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RFS bandpass filters are primarily used as part of multi-channel combiner facilities but can also be used to eliminate spurious emissions and increase isolation between co-sited services.
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Product
Low Noise Filter Adapter
PX0107A
Adapter Module
The PX0107A converts Dsub25 outputs to five SMB outputs with the low noise filtering capability down to 25 μVrms (20 MHz). It supports the Keysight M9614/15A.
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Product
Photosynthetically Active Radiation Probe
LPPAR01
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The LPPAR01 probe measures the ratio between the number of photons that strike a surfacein one second, in the 400 nm…700 nm spectral range and the surface area (m2). This quantity is defined as PAR: Photosynthetically Active Radiation.
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Product
SWITCHABLE FILTER BANKS
AFS-12WB
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Matrix Test Equipment Incorporated
Models AFS-12WB contain banks of Matrix Model FLT-1 filters. Each filter may be individually selected. The Model AFS-12WB retains the manual operation in addition to remote control through the GPIB IEEE-488 interface. Optional internal Post Amplifier PA-20-20 with a gain of 0, 17 and 32dB @ +5dBm max..
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Electronically Tunable Filters
ETF
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Radar. Communications. EW/SIGINT. Frequency agile channelization. Frequency agile noise rejection filter. Local oscillator tracking filter. Controlled bandwidth and center frequency noise source.
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Product
SWITCHABLE FILTER BANKS
FLT-1 WB
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Matrix Test Equipment Incorporated
The Model FLT-1-WB is our Wide Bandpass filters for measuringthe Video Carrier and the Composite Second Order Beatdistortion on both sides of the carrier.





























