Signal
detectable impulse of electromagnetic radiation or quantum state superposed.
See Also: Signal Sources, Signal Processing, Signal Integrity, Signal Proccessing, Signal Analyzers, Signaling, Signal Conditioning, Signal Generators, Signal Meters, Signal Conditioners, Fidelity, Hunting
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Wireless Sensors
Designed to measure specific parameters about their physical surroundings and produce outputs, often electrical signal
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8 Channels, Differential Input
VR1
The VR1 provides eight isolated, wide voltage input range Variable Reluctance (VR) signal or general-purpose Pulse Counter measurement interfaces. Channels can be programmed to operate individually or combined in pairs.
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1 Channel, MIL-STD-1553/1760 Communications Interface
FTJ
Based on the MIL-STD-1553 signal and interface backbone, MIL-STD-1760 defines a standardized electrical interface to address additional aircraft weapons stores management and as such, includes some special requirements. The FTJ module meets the operational requirements within the general specifications of MIL-STD-1760 as applied to an integrated I/O function module, and include special designed holt transceivers to ensure signal parameter operation and integrity.
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3, 2 or 1 Channels, 0.5 VA, 1.5 VA or 3.0 VA
DLx
Linear Variable Differential Transformer (LVDT) and Rotary Variable Differential Transformer (RVDT) are transformer-type voltage/current transducers that convert a linear/rotary movement of a core/shaft to a multi-wire differential AC electrical signal. Both deliver signals linearly proportional to the position of a shaft (magnetic induction core). An LVDT/RVDT simulator is used to convert digital positional commands to corresponding AC signals.
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16 D/A Outputs (+10 VDC or +10 mA)
DA2
The DA2 module features 16 D/A output channels with a full scale range of ±10 VDC at ±10 mA (max). The DA2 module also offers external trigger/synchronization signal (RS422/485) capability, which provides/accepts a trigger signal to/from other module(s).
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2 Channels, 28-115 Vrms, 47 Hz-2.5 kHz (max. range) programmable
AC3
The module is used to provide an AC signal source when a secondary reference source other than the optional on-board reference module is required. The modules are programmable for full range voltage outputs from 2 to 115 VAC, and frequency from 47 Hz to 10 kHz.
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Enhanced 16 Differential I/O Multi-Mode Transceiver Channels
DF2
Function module DF2 (Enhanced Version) multi-mode transceivers with 16 programmable I/O channels. Differential transceivers increase resistance to noise by creating two complementary signals. These complementary signals produced on balanced lines double noise immunity by creating lower power requirements due to lower supply voltages.
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4 Relay Channels, Non-latching
RY1
The RY1 module features 4 individual single-pole, user SPDT Form-C (changeover/break-before-make type) relays (channels). Each channel has a common input terminal (C), a normally closed output terminal (N/C), and a normally open (N/O) output terminal. The channel either energizes or de-energizes the relays (close or open) so that the signal provided on (C) may be switched/directed to either the (N/C) or (N/O) terminals.
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Synchro/ARINC 429/Fuel Flow Modules
NAI designs and manufactures a wide variety of self-contained, remotely mountable, Signal Converter Modules:*Synchro/Resolver Booster AmplifiersS*ynchro/Resolver Converters*ARINC 429-to-Synchro Converters*Second Harmonic Fuel Flow ConvertersTheir field-proven designs and carefully selected components assure highly reliable performance. These military grade modules are specifically designed for rugged defense and industrial applications.
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2-28 Vrms Input, 2-115 Vrms Exc, 47 Hz - 1 kHz Freq
SDx
Synchros and Resolvers are transformer-type voltage/current transducers that convert a shaft or other rotating device's angular position and/or velocity to a multi-wire AC electrical signal. Both deliver signals proportional to the Sine and/or Cosine of the shaft angle. A Resolver-to-Digital or a Synchro-to-Digital converter is used to convert these signals to a digital output corresponding to the shaft angle and/or velocity.
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2 Channels, 2-28 Vrms, 47 Hz-20 kHz (max. range), programmable
AC2
The module is used to provide an AC signal source when a secondary reference source other than the optional on-board reference module is required. The modules are programmable for full range voltage outputs from 2 to 115 VAC, and frequency from 47 Hz to 10 kHz.
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3 Channels, 0.5 VA @ 28 Vrms
DSK
Synchros are transformer-type voltage/current transducers that convert a shaft or other rotating device's angular position and/or velocity to a multi-wire AC electrical signal. Both deliver signals proportional to the Sine and/or Cosine of the shaft angle. A Digital-to-Synchro simulator is used to convert digital angle/velocity commands to corresponding Synchro/Resolver AC signals.
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VXI Instruments
NAI offers a wide range of COTS and custom VXI-based Instruments. These boards are specifically designed for defense, commercial aerospace, and industrial applications. Our DSP-based designs offer very high function density, high resolution and accuracy, and low power consumption. Standard features include extensive diagnostics, Background Built-In-Test (BIT), auto-ranging of signal inputs, self-calibration, galvanic isolation, and field programmable parameters. A VISA PNP Software Support Kit (SSK) is provided to facilitate application development.
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12 D/A Outputs (±10 VDC or ±25 mA)
DA1
The DA1 module features 12 independent D/A output channels with a full-scale range of ±10 VDC at ± 25 mA (max). The DA1 provides either voltage or current control loop modes that are programmable for the particular application. The DA1 module also offers external trigger/synchronization signal (RS422/485) capability, which provides/accepts a trigger signal to/from other module(s).
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4 Relay Channels, Latching
RY2
The RY2 module features 4 individual single-pole, user SPDT Form C (changeover/break-before-make type) relays (channels). Each channel has a common input terminal (C), a normally closed output terminal (N/C), and a normally open (N/O) output terminal. The channel either energizes or de-energizes the relays (close or open) so that the signal provided on (C) may be switched/directed to either the (N/C) or (N/O) terminals.
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2 Channels, MIL-STD-1553/1760 Communications Interface
FTK
Based on the MIL-STD-1553 signal and interface backbone, MIL-STD-1760 defines a standardized electrical interface to address additional aircraft weapons stores management and as such, includes some special requirements. The FTK module meets the operational requirements within the general specifications of MIL-STD-1760 as applied to an integrated I/O function module, and include special designed holt transceivers to ensure signal parameter operation and integrity.
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16 Differential I/O Multi-Mode Transceiver Channels
DF1
Function module DF1 multi-mode transceivers with 16 programmable I/O channels. Differential transceivers increase resistance to noise by creating two complementary signals. These complementary signals produced on balanced lines double noise immunity by creating lower power requirements due to lower supply voltages.
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Polarization Stabilizer, 2 Port
POS-202
The POS-202 has optical ports for signal input and output. It stabilizes the output SOP to linear, aligned to the slow axis of the output PM fiber.
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Weather Radar Receiver
This is an example of a custom four-channel C-Band Receiver uses a single conversion technique to translate incoming 5.56 GHz radar signals to a 60 MHz IF. The Receiver is divided into two polarization sections, each with a dedicated channel for the received signal and a second channel for a reference signal originatingfrom the transmitter. There are two identical circuits in the Receiver, one reserved for vertically polarized signals, and the second for horizontal signals.
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Polarization Stabilizer, 3 Port
POS-203
The POS-203 has optical ports for signal input and output and a third port for an optical feedback signal. It automatically optimizes the output SOP to either maximize or minimize and optical or electrical feedback signal. It also allows the operator to control the step size, feedback delay, activation threshold, and search algorithm (maximum or minimum) from the front panel as well as remotely via one of the digital interfaces.
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Benchtop Polarization Analyzer
N7781C
The Keysight N7781B is a compact high-speed Polarization Analyzer which provides comprehensive capabilities for analyzing polarization properties of optical signals. This includes representation of the State of Polarization (SOP) on the Poincar Sphere (Stokes Parameter).
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1, 2, or 3 Channels @ 0.5 VA, 1.5 VA or 3.0 VA
DSx
Synchros are transformer-type voltage/current transducers that convert a shaft or other rotating device's angular position and/or velocity to a multi-wire AC electrical signal. Both deliver signals proportional to the Sine and/or Cosine of the shaft angle. A Digital-to-Synchro simulator is used to convert digital angle/velocity commands to corresponding Synchro/Resolver AC signals.
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56 Channel TTL I/O FPGA PXI Card
GX3756 Series
The GX3756 is a user configurable, FPGA-based, 3U PXI card which offers 56, TTL I/O signals. The module consists of a daughter card and the GX3700 FPGA baseboard which employs the Altera Stratix III FPGA.
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Spectrum Analyzer - 9 kHz to 3 GHz
E8000A
The E8000 Series of Spectrum Analyzers provide all of the necessary measurement functions and performance to accurately characterize the signal environment in addition to clearing, detecting, identifying and locating signal interference in a lightweight, handheld instrument.
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Spectrum Analyzer - 9 kHz to 4 GHz
E8400B
The E8400B Spectrum Analyzer provides all necessary measurement functions and performance to accurately characterize the signal environment in addition to clearing, detecting, identifying and locating signal interference in a lightweight, handheld instrument. Supporting up to 4 GHz, the E8400B can detect signals of GSM and CDMA 2.0.
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14-Bit Digitizer
PA72D14130
The PA72D14130 is a 14-bit digitizer, capable of capturing waveforms at speeds up to 130Msps. An onboard offset voltage source allows capturing offset signals while still using the optimal range for maximum ADC utilization. Two onboard filters allow suppression of out-of-band noise. The 64MWord onboard memory enables capturing very long waveforms, or sequentially capturing multiple signals with minimal intermediate bus communication.
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16-Bit Digitizer
PA72D16180A
The PA72D16180A is a 16-bit digitizer, capable of capturing waveforms at speeds up to 180Msps. An onboard offset voltage source allows capturing offset signals while still using the optimal range for maximum ADC utilization. Two onboard filters allow suppression of out-of-band noise. The 64MWord onboard memory enables capturing very long waveforms, or sequentially capturing multiple signals with minimal intermediate bus communication.
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14-Bit Waveform Generator
PA72G14180
The PA72G14180 is a 14-bit arbitrary waveform generator, capable of generating waveforms at speeds up to 180Msps. An onboard offset voltage source allows generating offset signals while maintaining optimal utilization of the DAC’s digital range. With the 64MWord of memory, there is lots of room for uploading long complex waveforms. Also uploading of many different patterns is possible, allowing switching patterns with minimal bus communication.
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16 Bit Waveform Generator
PA72G16400
The PA72G16400 is a 16-bit arbitrary waveform generator, capable of generating waveforms at speeds up to 400Msps. The high resolution and the high sample rate allows generating signals with very low quantization noise levels. An onboard offset voltage source allows generating offset signals while maintaining optimal utilization of the DAC’s digital range. With the 8MWord of memory, there is lots of room for uploading several different patterns, allowing switching patterns with minimal bus communication.
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Custom Backplanes
The backplane is quite literally the backbone of a successfully performing system. Excellent signal integrity design is critical to platform reliability. Building on decades of backplane manufacturing experience, Elma engineers are innovation leaders in high-speed signal processing design, developing some of the most sophisticated backplanes in the industry.