Synchro/Resolvers
Compute trigonometric values over 360 degrees of rotation by varying the magnetic couplings between its primary (rotor) and secondary (stators) windings.
See Also: Synchro / Resolver Converters, Angle Position Indicators, Stator, Rotor, Synchros, Resolvers, Synchro / Resolver Simulators
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Synchro/Resolver to Linear DC Converter
NAI offers a variety of Synchro/Resolver Converters that continuously transform Synchro or Resolver inputs into digital form. These solid-state modules provide resolution to 16-bit and accuracy to 19.8 arc-seconds, and are error-free up to the maximum specified tracking rate. They are transformer-isolated and operate over a frequency range from 47 Hz to 10 kHz. The modules are specifically designed for rugged defense and industrial applications.
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Synchro to Digital-Resolver to Digital Converters
SDC-F-RDC-F
Computer Conversions Corporation
SDC/RDC-F Series are Industry Standard Tracking Synchro and Resolver to Digital Converter modules with programmable resolution, 8/16 Bit data bus controls, continuous Built-In Self-Test report, and forced angle test modes used for functional validations on command.
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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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LVDT I/O Cards
IB
Computer Conversions Corporation
The "IB Series" product line are full size IBM PC/AT+ and ISA 2.01 compatible synchro, resolver, and LVDT I/O cards, and resolver-sensor card sets used as absolute encoder systems.
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3U cPCI Synchro/Resolver Simulation Board
75DS2
NAI’s 75DS2 is a Synchro/Resolver Simulation Board with four independent, isolated channels. These channels can incorporate up to four Digital-to-Synchro/Resolver Simulation Converters with 1.5, 2.2, or 3 VA drive capability, or either two or four Digital-to-LVDT/RVDT Simulation Converters. One of the outputs on each channel can be grounded without affecting performance.
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6U CPCI Multifunction I/O Board
78C1
The 78C1 is a universal 6U cPCI Multifunction I/O Board that eliminates the complexity and size constraints of using multiple, independent, single-function cards. This single slot card has six module positions, allowing developers to achieve a custom configuration with any combination of function modules, such as A/D (10-channels), D/A (10-channels), Discrete I/O (16-channels), TTL I/O (16-channels), Differential Multi-Mode Transceivers (11-channels), RTD (6-channels), Synchro/Resolver (4-channels), LVDT/RVDT (4-channels), and Signal Generator (4-channels).
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Synchro to BCD and Resolver to BCD Converters
TSBC TRBC
Computer Conversions Corporation
The TSB Series are miniature, high performance, continuous tracking, synchro or resolver to digital (BCD) converters and angle indicators employing a type 2 servo loop, designed for military and industrial control applications. They will accept any 3 wire synchro or 4 wire resolver input over a frequency range of 50 to 1200Hz. and convert it into 0 to 359.9 degrees or +/-179.9 degrees, TTL compatible BCD data.
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Angle Position Indicators
NAI offers a wide variety of Angle Position Indicators (APIs) that perform high quality analog-to-digital conversions of Synchro or Resolver data. These measurement instruments deliver industry-leading performance in a variety of accuracy and resolution grades, with various packaging options available. Multiple communication control interfaces include:*Touch screen*Front panel*Optical mouse*IEEE-488*Ethernet*USB
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Synchro to Digital-Resolver to Digital Converters
HSDC-HRDC
Computer Conversions Corporation
HSDC & HRDC Series are Miniature, Tracking Synchro and Resolver to Digital Converters with programmable resolution, 8/16 Bit data bus controls, continuous Built-In Self-Test report, and forced angle test modes used for functional validations on command for military and industrial applications.
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Programmable Selsyn Indicators
PSI
Computer Conversions Corporation
Computer Conversions Solid State Selsyn/Resolver Indicator digitizes the outputs of Selsyns, Synchros and Resolvers for position indication and control applications. The Selsyn Indicator is designed to replace failure prone mechanical selsyn torque receivers, counters, etc. The tracking converters high noise immunity and high speed tracking characteristics make it ideal for use in industrial envrionments.
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Phase Angle Voltmeter
PAV1010A
Measuring Vrms, inphase, quadrature, freq, ratios and phase angles. Using Discrete Fourier Transform algorithms, the PAV1010A provides capability, performance and versatility not available with traditional PAVs. Targeted at the Synchro/Resolver and LVDT/RVDT marketplace, this instrument makes measurements of Phase Angle, In-Phase, Quadrature (90° component), Fundamental and Total Vrms very straightforward. All these measurements are displayed simultaneously on a bright multifunction display.
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LVDT I/O Cards
CP3000
Computer Conversions Corporation
Universal AC Sensor interface digitizes up to 8 channels of individually Programmable Synchro, Resolver and LVDT/RVDT sensor inputs on a 3U cPCI (Compact PCI) and PXI Compatible plug-in circuit cardProduct allows users to interface into the widest variety of AC Position sensors all programmable within a single cardA must have for anyone using LVDT-RVDT's, Synchros and Resolver sensors or signals, electronic gauging, motion control, and instrumentation.
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Synchro to Digital-Resolver to Digital Converters
SACP-RACP
Computer Conversions Corporation
Computer Conversions Synchro-Resolver to ACP/ARP Converters accept choice of synchro-resolver input options, power input, and mounting configuration, converts synchro/resolver input into ACP (Azimuth Change Pulse) and ARP(Azimuth Reference Pulse) type outputs suitable for 75 ohm drive.
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AC Reference Generators
SR23
Computer Conversions Corporation
The SR23 Series are miniature, low cost AC reference generators designed to supply 26 or 115 volt excitation (2-115VAC) to synchros or resolvers in military and industrial control applications. They accept +/-15V DC or +/-12V DC power inputs and provide up to 5VA of transformer isolated output power. These converters are packaged in PC card mounting modules 2.6”x3.1”x1”H.
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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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P104 Synchro/Resolver Measurement Board
73SD4
NAI’s 73SD4 is a DSP-based, PC104-compliant Synchro/Resolver Measurement Board with six separate, isolated channels. These channels can incorporate up to six Synchro/Resolver-to-Digital Tracking Converters in a stack-through module. Each channel also produces differential incremental encoder (A & B) outputs (with programmable resolution) and a zero-degree marker pulse. Commutation outputs are available for 4-, 6-, or 8-pole brushless DC motors that eliminate the need for Hall Effect sensors, thereby reducing both processor time and bus traffic.
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ARINC HSI / ADI Test Fixture
TA-2000
The TA-2000 test fixture is a combination panel that incorporates all the standard capabilities of the legacy CTS-11(ADI) and CTS-12(HSI) panels and much more. This panel is married to our model TA-1001 dual synchro transmitter/API panel thus allowing for local stimulus and alignment of the instruments synchros and resolvers. The panel provides for testing of both superflag(28v) and low level meters through a matrix of switching that will allow testing of all meters simultaneously or just individually. The low level meter drive circuit also incorporates an automatic mode that will continuously oscillate the L/R and Up/Dn pointers.
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Synchro to Digital-Resolver to Digital Converters
SDC40-RDC40
Computer Conversions Corporation
The SDC series are low cost, miniature, continuous tracking, synchro or resolver to digital converters designed for military and industrial control applications. They will accept any 3 wire synchro or 4 wire resolver input and convert it into 14, 12 or 10 bit natural binary angle data.
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6U CPCI D/S, S/D, I/O & Comm Board
78CS2
NAI’s 78CS2 is a 6U cPCI Multifunction I/O and Communication Board designed for applications requiring Digital-to-Synchro/Resolver (D/S) stimulus output, as well as I/O and communication functions. This board contains five independent function module slots. The board can be configured for 10 D/S channels, or for D/S in combination with I/O and communication modules. Additional enhancements include FIFO data buffering for select modules. Using multiple DSPs, the enhanced motherboard enables higher processing power and dedicated pre-processing control for each module.
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High Accuracy AC Reference Source
515
Clarke-Hess Communications Research
The Model 515 High Accuracy AC Reference Generator fills a need for a relatively low cost and practical solution for supplying a reference excitation to typical LVDT and Synchro/Resolver transducers. The Model 515 has built-in load sensing which, in effect, yields "zero" output impedance and virtually eliminates the effects of fluctuating output loads. With up to 15 VA of output into loads with as much as 80 of phase shift, the Model 515 is ideally suited to driving inductive loads.
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24-Channel VME Synchro/LVDT Simulation/Acquisition Module
V545
The V545 is a generalized- DSP-based sinewave processor intended for both simulation and acquisition of LVDTs, RVDTs, synchros, and resolvers. 24 generalized, isolated channels are provided. Each channel can be a signal source or a measurement input. Users can program any desired relationship between input and output channels, allowing simulation and measurement of a wide range of inductive transducers, using internal or external excitation.
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Six Single-Speed Synchro / Resolver To Digital Channels
VME1686
Six single-speed synchro/resolver to digital channels. Self-Test continuously monitors each converter conformance on-line Loss of reference and signal alert
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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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Synchro to Digital-Resolver to Digital Converters
Synchro- Burst
Computer Conversions Corporation
Computer Conversions Corporation's Synchro-Burst is a complete 2 channel Synchro to encoder interface designed to easily integrate inherently absolute rotary synchro, resolver or linear LVDT position sensors into motion controls and counters that are normally only designed to facilitate incremental encoder feedback.
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Small Synchro / Resolver Digital Panel Meter
DPM-401
The industry's smallest synchro/resolver digital panel meters the four digit DPM-401. Only 1.9" x 3.8" x 3.1" deep Bright 0.56" 4 digit LED display
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PCIe Mini Module
PCIe-Mini-SYNCHRO
The PCIe-Mini-SYNCHRO module is a one channel Synchro/Resolver controller. It uses a state of the art 16-bit monolithic Resolver-to-Digital converter. This single chip converter offers programmable features such as resolution, bandwidth, velocity output scaling and encoder emulation.
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Phase Angle Voltmeter, Industry Standard
2250A
NAI's 2250A Phase Angle Voltmeter is the most accurate and versatile AC measurement tool in the Synchro/Resolver and LVDT/RVDT marketplace. Considered the industry standard and based on the latest DSP and FPGA technologies, the 2250A substantially extends and simplifies the capabilities of the legacy 2250 model.
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Programmable S/R Standard & Simulator
5300
NAI’s 5300 Synchro/Resolver Standard & Simulator is a laboratory-grade, programmable instrument. This model can be used as a true Synchro/Resolver standard for calibrating and testing Automatic Test Equipment (ATE) for Calibration/Metrology Labs, and for Engineering Design and Production Test environments. It can also be used to measure Angle Position Indicators (API) and Synchro-to-Digital converters for static or dynamic characteristics. This model also may use an external reference waveform.
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Motion Control Solutions
DDC offers a complete line of Synchro/Resolver instrument-grade cards and test equipment including angle position indication and simulation, plus a variety of hardware and software to meet today’s civil, military, and COTS/MOTS requirements. DDC is a leading supplier of Synchro/Resolver-to-Digital and Digital-to-Synchro/Resolver components—the smallest, most accurate synchro/resolver-to-digital and digital-to-synchro/resolver converters available today. Most of these single chip and hybrid converters are based on ASIC designs, yielding the most reliable and affordable converters ever offered, and are the building blocks for DDC’s card-level products.
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4 Digit Angle Position Indicator (API)
TA-900
This has been the New standard in Angle Position Indicators. 4 digit API has fault monitoring for both low-level and loss of signal (LOS) and this status is shown on the front panel led. The unit provides simultaneous connection of both synchro and resolver devices.





























