Filters
Electronic circuits which refine signal by blocking certain frequencies, while allowing other frequencies to pass.
See Also: Filter / Amplifiers, EMI Filters, Low Pass Filters, Programmable Filters, Attenuators
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Gas Filter Correlation CO2 Analyzer
Model N360
Teledyne Advanced Pollution Instrumentation
The Model N360 measures carbon dioxide (CO2) by comparing infrared energy absorbed by a sample to that absorbed by a reference according to the Beer-Lambert law.The N360 uses Gas Filter Correlation (GFC) to overcome the interfering effects of various other gases (such as water vapor) that also absorb IR. The analyzer passes the IR beam through a spinning wheel made up of two separate chambers: one containing a high concentration of CO2 known as the reference, and the other containing a neutral gas known as the measure. The concentration of CO2 in the sample chamber is computed by taking the ratio of the instantaneous measure and reference values and then compensating the ratio for sample temperature and pressure. A nitrogen purge system is provided for the GFC wheel assembly to eliminate the effects of ambient CO2, if necessary.
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Preselectors and Switch Filter Banks
Our preselectors and switch filter banks offer low noise figure, high dynamic range, state-of-the-art filter rejection with high channel-to-channel isolation front ends, realized in compact building blocks, designed in custom form factors. Applicable markets include: EW, missiles, radar, communications and space.
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ICE 3000 Series
ICE3001
This subsystem is an agile filter for the SATCOM frequency band, capable of acting as either a receive or a transmit filter. It enables simultaneous operation of multiple transceivers in extreme cosite environments. The ICE3001 provides multiple poles of RF selectivity to reduce broadband noise, harmonics, and spurious signals for either receive or transmit applications. This filter is a highly integrated design incorporating complete Built-in-Test capability. The design has been qualified for military applications. A dual-mount tray is also available as an option for easy incorporation on your platform. Cost-effective modifications are available on the ICE3001.
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AC/DC Power Capacitors
ACF Series
For 70Vac~400Vac / 100Vdc~700Vdc Pulse Current requirement, please refer to our DC Pulse Current Capacitors for Power Electronic applications.For continuous and High RMS Current requirement, please refer to our High AC Current Capacitors LC series, which support continuous duty even at +105C.We manufacture AC Filter Capacitors for a wide variety of applications with different Capacitances, Voltages, Discharge Energy ranges, dv/dt, Pulse Discharge Currents, RMS Currents, frequency ranges, size restriction and even capacitor mountings.
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Adapter/Stainless Steel
WADP-24M29M
Warison provides wide range of wireless passive coaxial components, includes Adapters, Attenuators, Coaxial Cables Assemblies, DC Blocks, Filters, Isolators & Circulators, Probes & Terminations. With outstanding capability of development and design, Warison is able to custom the spec based on customer��s demand. All Warison��s products pass inspection and electronic performance test before shipping out. It is our principal to deliver the best solution to all our clients.
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High Performance Data Acquisition
CPCI-AD8
The CPCI-AD8/16 module provides a 3U high performance data acquisition subsystem. There are (8) eight or (16) sixteen 100/200 KSPS ADC’s for maximum performance. The Local DSP can be used to simply move data samples to the CPCI bus or can provide processing functions such as limit checking, FFT’s, digital filtering, etc. Software can be downloaded to the DSP via the CPCI interface.Instrumentation amplifiers provide over-voltage protection and gain on a per channel basis. The CPCI-AD8/16 can also accept external scan and trigger signals from a front panel connector.
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Programmable, 2-Channel Low-Pass Filter Module
AAF-3F
Programmable, 2-Channel Low-Pass Filter Module. The AAF-3F is designed for use with the AAF-3M and AAF-3PCI filter boards.
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48-Ch SPDT 1A-100VAC 24VDC Switching
YAV91074
The YAV90074 module contents 48 SPDT Relays independent. Each relays PCB contact track is shielded individually in order to handle very low voltage signals and audio signals with extremely low crosstalk. The build-in power supply includes two extra filters to reduce the DC voltage ripple to the relay coils; the control tracks have been drawn in quadrature with signal ones, reducing the inductive coupling produced by the transient current.
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Digital I/O Board, 32 Isolated I/O Channels, 24 V
PA1500
*16 input channels 24 V, incl. 14 interruptible*16 output channels, 24 V, 500 mA Optical isolation 1000 V*Input and output filters*Watchdog*3 timers/counters
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Field Strength Meter
FIM-71 VHF
The Model FIM-71 is a portable, laboratory quality Field Strength Meter designed for rigorous field applications. Combining a calibrated half-wave dipole antenna and a highly accurate tuned voltmeter with a range of 140 dB, the FIM-71 is suitable for practically all types of RF emission measurements in the 45 MHz to 225 MHz spectrum. The operator can switch select wide or narrow bandwidth, peak or average value of TV or pulse modulated signals, AM or FM demodulation, and a meter dynamic range of either 20 dB or 60 dB. A dc analog output voltage, proportional to the meter indication, is provided for driving a chart recorder. A leveled output from the calibrating oscillator is available for measuring cable insertion loss, filter response, amplifier gain, and other signal ratio measurements. The 4-1/2 inch, taut band, mirrored scale meter is calibrated in volts and dB for precise measurements in field or laboratory environments.
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Linear Regulated Power Supplies (to 150 watts)
Gold Box "Infinity"
*Highly Configurable, with a seemingly Infinite number of Options*Any slot voltage from 1.5v to 150v is available*Remote Sensing*Open Sense protection*Isolated output*Short circuit and overload protection with enhanced surge capabilities*No minimum load required*Internal EMI Filtering*Pluggable connectors*Can be mounted on two surfaces in any orientation
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16-Channel VME Multi-Range Digitizer
V490
The V490 includes 16 independent acquisition channels, each with a programmable-gain differential amplifier, analog anti-aliasing filter, 16-bit analog-to-digital converter, and digital post-processing. With a dedicated A/D converter per channel, the V490 provides true simultaneous sampling, which can be extended across multiple V490s or triggered from an external TTL signal.
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Gas Filter Correlation CO Analyzer
Model T300U
Teledyne Advanced Pollution Instrumentation
The Model T300U Trace-level CO analyzer has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network. Using IR absorption with a Gas Filter Correlation Wheel, the T300U is designed to allow ultra-sensitive CO measurements while still meeting the requirements for use as a US EPA compliance analyzer.The optical bench is enclosed in a temperature controlled oven, dramatically decreasing instrument noise and drift. The objective and field mirrors in the sample cell are gold plated to maximize signal to noise performance, while a temperature-controlled Nafion dryer on the inlet minimizes water interference caused by ambient humidity changes. Periodically, the T300U seamlessly corrects its baseline by routing the sample through a heated catalytic CO scrubber. This Auto Reference function corrects zero drift and reduces the effect of interferences.
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High Temperature, Low Strain, Extended Performance Capacitive Extensometers
Model 7650A
Jinan Testing Equipment IE Corporation
Model 7650A extensometers measure strains with extremely high precision due to their design features and low strain range. All models are capable of tension and compression strain measurement, and may be used for fatigue testing under fully reversed load and strain conditions at frequencies up to 10 Hz.All 7650A models mount rigidly on the load frame and incorporate slide mounting to bring the extensometer into contact with the specimen. The gauge length is set automatically before mounting on the test specimen, which allows for hot mounting after thermal equilibrium has been reached.These units are specifically designed to provide high accuracy, high resolution measurements and perform high temperature fatigue testing at the highest possible frequencies. They incorporate capacitive sensors for low operating force and include electronics with programmable filtering and multi-point linearization for improved performance and accuracy. The overall design minimizes, and in many cases virtually eliminates, any influence from common lab environment vibrations.These water-cooled extensometers are equipped with high purity alumina rods for specimen contact when testing to 1200℃ (2200°F). Silicon carbide rods are used for the 1600℃ (2900°F) high temperature option.The Model 7650A is often customized for specific test needs. Contact Epsilon for a configuration that matches your requirement.
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50GHz Dense Wavelength Division Multiplexer
DWDM-0500
Hangzhou Huatai Optic Tech. Co., Ltd.
DWDM series is based on mature thin film filtering technology and adopt metal sealing technology to encapsulate. It has the feature of flat channel bandwidth, flexible channel configuration, low insert loss and high isolation. The flexibility of channel configuration and modularized design make it convenient for system upgrading and expanding. All the Huatai products have no epoxy glue in optical line and can be used in high power optical communication system.
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PCI-6514, 64-Channel, ±30 VDC, 32 Sink/Source Inputs, 32 Source Output, Bank-Isolated Digital I/O Device
778836-01
The PCI-6514 is an industrial digital I/O interface, with eight banks of isolated channels. With programmable power-up states, you can configure the initial output states in … software, to ensure safe operation when connected to industrial actuators. If a computer or application fault occurs, the PCI-6514 can use digital I/O watchdogs to switch to a configurable safe output state to ensure detection and safe recovery from fault conditions. Programmable input filters eliminate glitches/spikes and provide debouncing for digital switches/relays through a software-selectable digital filter.
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HVDC Power Filter Characteristic Test Set
FT3000
FT3000 Power Filter Characteristic Testing equipment has the functions of automatic sweep harmonic signal output, A-F and P-F characteristic measurement/display etc. It can perform HVDC Power Filter Testing and is mainly used in AC filter of DC convertor station, DC filter tuning characteristics test and parameter test of R, L and C. It is also used in electrified railway HV filter, passive power filter client and conventional AC substation reactive compensation device.
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PCI-5105, 8‐Channel, 12-Bit, 60 MHz Bandwidth PCI Oscilloscope Device
779686-01
8‐Channel, 12-Bit, 60 MHz Bandwidth PCI Oscilloscope Device—The PCI‑5105 high-density oscilloscope device has eight simultaneously-sampled channels with flexible settings for coupling, impedance, voltage range, and filtering. Oscilloscope devices also feature a number of triggering modes, deep onboard memory, and an instrument driver that includes data streaming and analysis functions. This device is ideal for applications with many channels that require up to 60 MS/s or 60 MHz of analog bandwidth.
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MIL-STD-1553 A / B Test And Simulation PCI Module
PCI-C1553
*Dual redundant*1, 2 or 4 channels*Simultaneous bus controller, 31 remote terminals, bus monitor*Error entry and detection*FPGA based hardware architecture*Multi-level trigger for data acquisition and filtering*10 programmable, discrete I / O (up to 30V)*IRIG-B timecode encoder / decoder with free-running mode*Real-time recording and physical bus playback*Supports: C, C ++, C # and .net*Driver support: Windows, Linux, LabView Real-Time and other systems
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MFA R&D Tunable - Adjustable Bandwidth Tunable (700MHz-1000MHz)
Allows passband centered at any frequency over tuning range while adding the capability to vary passband width. Upon input of desired frequency and bandwidth, tunes center frequency and adjusts bandwidth to provide a custom filtering solution on demand. Suitable for LTE and other test applications. The LTE/WiFi Test Box is the latest addition to this product family.
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Digital Receiver XMC
XF07-516
Curtiss-Wright Defense Solutions
The XF07-516 is a rugged quad channel 250MSPS 16-bit digital receiver XMC. The ADC devices directly interfaces to a user programmable Xilinx FPGA which allows high performance processing such as Digital Down Conversion (DDC), filtering and custom algorithms.
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PXIe-5622, 150 MS/s, 16-Bit PXI IF Digitizer
780412-01
150 MS/s, 16-Bit PXI IF Digitizer—The PXIe‑5622 includes onboard signal processing (OSP), which enables features such as quadrature digital downconversion (DDC), real DDC, and anti-alias filtering. The PXIe‑5622 is ideal for communications applications because of its high dynamic range front end and a high-throughput PXI Express interface that allows it to stream IF data to disk for hours at the full sample rate.
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C Series Frequency Input Module
The C Series Frequency Input Module is designed to acquire isolated frequency inputs from magnetic pickup sensors, variable reluctance sensors, Hall effect sensors, and other transducers with a frequency output. Additionally, the C Series Frequency Input Module provides isolation, configurable thresholds, selectable filtering, and embedded counter measurement logic. These measurements can be synchronized with other frequency, analog, digital, and counter measurements in a single acquisition.
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Digital I/O Board, 32 Isolated I/O Channels, 24V
APCIE-1500
The PCI-Express 32 digital I/O board APCIe-1500 has 32 digital inputs/outputs (24 V or 12 V), 14 inputs are interruptible. The 16 digital power outputs are equipped with protection diodes and filters. The board is fully compatible to the PCI board APCI-1500. It is especially suited for applications like industrial I/O control, signal switching, ON/OFF monitoring of motors, lights etc. in the harsh industrial environment. The APCIe-1500 has interruptible inputs. They supersede continuous cyclical query processes (polling) for routine monitoring and evaluation tasks. This takes load off the processor and the software. At a change of state of the digital inputs the APCIe-1500 generates an interrupt, so that the system reacts on the event through the interrupt routine and herewith fulfils real-time criteria.
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Mezzanine System
5147
ECM P/N 5147 provides two channels of 12 bit A/D conversion using the Analog Devices AD9235, and is suitable for medium resolution high speed applications. The two differential inputs are terminated in 120 ohms and buffered with a gain of 1 differential amplifier. Differential Input range is +/-3.0V. Sample rates are 20MHz per channel with a 5MHz 4 pole elliptical analog input filter.
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RF Switch Modules
Analog Devices RF switch modules include the highest bandwidth switch modules. SPST, SPDT, SP4T, SP6T, and SP8T versions (reflective and absorptive) are available for a wide range of power (up to 27 dBm) applications, including antenna switching, filter switching, and tuner applications.
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Filtered AC Interface Module
AC modules for RF Test Enclosures eliminate conducted and radiated interference, while providing a source of AC power.
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Voltage Controlled Oscillators
Teledyne RF & Microwave offers Voltage Controlled Oscillators (VCOs) utilizing bipolar transistors & silicon varactors over the frequency range of 40 MHz to 18GHz. Many of the VCO designs incorporate internal filtering, regulation & amplifiers to meet total system requirements in a small integrated package. Additionally, our hermetic hybrid designs can be screened to the most demanding military and space applications.
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Adapter/ Stainless Steel
WADP-35F35F
Warison provides wide range of wireless passive coaxial components, includes Adapters, Attenuators, Coaxial Cables Assemblies, DC Blocks, Filters, Isolators & Circulators, Probes & Terminations. With outstanding capability of development and design, Warison is able to custom the spec based on customer��s demand. All Warison��s products pass inspection and electronic performance test before shipping out. It is our principal to deliver the best solution to all our clients.
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Mini Receiver
FB7-NX
In about 1935, the National Radio Company of Malden, Mass., brought out a “hot” high frequency receiver, called the FB7, and the subsequent FB-7X. It featured a super-hetrodyne design with plug-in coils that gave it a broad frequency range. The “X” model also incorporated a crystal filter in the intermediate frequency section, thus giving it additional selectivity. The receiver was viewed by radio amateurs as a technological breakthrough, and it was also used commercially for point to point high frequency communications. As the receiver did not have an internal RF amplifier section, a separately tunable RF amplifier was later provided in a separate enclosure for additional performance capabilities. Now, National RF, Inc., is resurrecting the fabled receiver name with an all solid-state, hot mini receiver, which also utilizes plug-in coils to cover the HF spectrum. The mini-receiver is designed for use by radio amateurs as well as serious short-wave listeners, and allows reception of AM, CW, and SSB signals. It incorporates a super-hetrodyne design with a dual gate FET built-in RF preamplifier and a ceramic filter for selectivity, often required when used in a crowded amateur radio band. In addition, the receiver has a buffered rear panel output of the high frequency oscillator for use with either a frequency counter for exact receive frequency display, or for interface with an outboard transmitter. A rear panel jack is also provided for muting the receiver when a transmitter is placed into the transmit mode. And, the receiver is small enough to fit into carry-on luggage and taken on trips when it is desired to “keep an ear” on amateur radio or other high frequency activity. The receiver utilizes rear panel plug-in coil assemblies which contain the RF amplifier, mixer, and oscillator tuned circuits. Each plug-in coil assembly also comes with a separate dial scale, which is inserted onto the front panel for displaying the tuned frequency. A very smooth 6 to 1 planetary drive is used for tuning the receiver. Other front panel controls include RF preamplifier peak, volume control, Beat Frequency Oscillator adjustment, and RF gain control. Other switches include filter bandwidth, AM/CW/SSB selection, Power, and a general coverage/band spread control for certain plug-in assemblies. The receiver is intended to drive head-phones via a rear panel jack, but has sufficient output to drive a small external speaker.
