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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Product
Synchro to Digital-Resolver to Digital Converters
HSDC-HRDC
Digital / Synchro Converter
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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Product
Synchro/Resolver
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With so-called synchro/resolver cards, rotation angle sensors that work according to the synchro/resolver principle can be measured. Depending on the angle of rotation, these generate a sine and cosine signal, in order to determine the position and direction of rotation.
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Product
Synchro to Digital-Resolver to Digital Converters
MSI MRI MX
Digital / Synchro Converter
Computer Conversions Corporation
Computer Conversions MX Series are low cost multiplexed synchro or resolver to digital converter sets designed for Military or Industrial diagnostic and control applicatioms requiring 3-128 axis per control.
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Product
P104 Synchro/Resolver Simulation Board
73DS2
Simulator
NAI’s 73DS2 is a PC104-compatible Synchro/Resolver Simulation Board with three isolated channels. These channels can incorporate up to three Digital-to-Synchro/Resolver Converters with 1.2 VA drive capability in a stack-through module. With galvanic isolation, one of the outputs can be grounded without affecting performance.
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Product
P104 Synchro/Resolver Measurement Board
73SD4
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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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Product
Synchro or Resolver Angle Indicator Readout
AITM
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Computer Conversions Corporation
This series of units were designed to satisfy Hi speed multiturn synchro/resolver applications where the output data must be fresh and no data staleness can be tolerated. The tranducers utilized are the same as in the regular MDS series, however different tracking electronics are used.
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Product
AC Reference Generators
SR25
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Computer Conversions Corporation
The SR Series are miniature, low cost AC reference generators designed to supply 26 or 115 volt excitation to synchros or resolvers in military and industrial control applications. They accept +/-15V DC 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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Product
Programmable S/R Standard & Simulator
5300
Simulator
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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Product
Synchro to Digital-Resolver to Digital Converters
SDT RDT
Digital / Synchro Converter
Computer Conversions Corporation
The SDT/RDT Series, are single module, tracking, Multi-speed synchro/resolver to digital converters designed for Military and Industrial Applications. They will accept Electrical Multi-speed, or Geared (dual speed) Multi-turn; Synchro or Resolver input sets (Fine/ Coarse), having the most standard ratio’s, and convert them into a single non-ambiguous 16 Bit data word with up to +/-20 arc. seconds accuracy.
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Product
synchro or resolver to digital (BCD) converters
AIT
Digital / Synchro Converter
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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Product
Small Synchro / Resolver Digital Panel Meter
DPM-401
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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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Product
AC Reference Generators
SR23
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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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Product
Motion Control Solutions
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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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Product
24-Channel VME Synchro/LVDT Simulation/Acquisition Module
V545
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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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Product
Phase Angle Voltmeters
Phase Angle Voltmeter
Since the development of the first Phase Angle Voltmeter (PAV) over 50 years ago, North Atlantic Industries has been the industry leader in AC Measurement Instrumentation. Our name has become synonymous with innovation and quality. Our products, specifically designed for defense, industrial, and commercial applications, deliver industry-leading accuracy, repeatability, and reliability.NAI’s units of today are actually multifunction Digital Analyzing Voltmeters that combine a complete Voltmeter, a Phase Angle Voltmeter, and a Waveform Signal Analyzer in a single microprocessor-based instrument. With these versatile and flexible instruments, a wide range of tests can be performed, either manually using the front panel controls or automatically using the IEEE-488 bus. Designed for the Synchro/Resolver and LVDT/RVDT marketplace, NAI’s Voltmeters are used in a variety of applications.
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Product
3U cPCI Synchro/Resolver Simulation Board
75DS2
Simulator
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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Product
High Accuracy AC Reference Source
515
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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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Product
6U VME D/S, S/D, I/O & Comm Board
64CS4
Multifunction I/O
NAI’s 64CS4 is a 6U VME multifunction I/O 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 intelligent, 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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Product
Angle Indicators
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Computer Conversions Corporation
This series of units were designed to satisfy Hi speed multiturn synchro/resolver applications where the output data must be fresh and no data staleness can be tolerated. The tranducers utilized are the same as in the regular MDS series, however different tracking electronics are used. The resultant data tracks the input shaft perfectly and is always fresh and accurate at input speeds up to 64 revolutions per second, depending on the resolution. Data in BCD or Binary formats are available, and clean, unambiguous crossovers are guaranteed.
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Product
1, 2, or 3 Channels @ 0.5 VA, 1.5 VA or 3.0 VA
DSx
Digital / Synchro Converter
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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Product
Synchro/Resolver to Digital Converters
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Resolvers and synchros are transducers that convert the angular position and/or velocity of a rotating shaft to an electrical signal. Both deliver signals proportional to the sine and/or cosine of the shaft angle. A resolver-to-digital or synchro-to-digital converter converts these signals to a digital output corresponding to the shaft angle and/or velocity. ADI’s family of RDCs and SDCs offer solutions for these applications.
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Product
Embedded Synchro - Resolver -
LVDT I/O Cards
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Computer Conversions Corporation
100% Transformer Isolation is offered for all AC I/O, and various Isolated DC converters are available as standard product, eliminating concerns for ground-loops, ground interjected (intermittent and ghostly) field noise, inductive surges, differing potentials, and high voltage field transients from effecting the card itself, the sensitive ISA bus backplane and any other device or system sharing these signals.
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Product
6U CPCI Multifunction I/O Board
78C1
Multifunction I/O
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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Product
Synchro/Resolver Boosters
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NAI offers a variety of multi-channel Synchro/Resolver Boosters that accept Synchro/Resolver inputs, and they deliver isolated outputs capable of driving passive and active loads such as Control Transformers or Torque Receivers. These amplifiers can be used stand-alone or in conjunction with Digital-to-Synchro/Resolver Converters.
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Product
Synchro to Digital-Resolver to Digital Converters
SACP-RACP
Digital / Synchro Converter
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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Product
DC to Synchro and DC to Resolver Converters
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Computer Conversions Corporation
The LDS 500M Series are high accuracy, drift free, and continuously updating DC-Angle to Synchro or Resolver Converters designed for Military and Industrial simulation and control applications.
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Product
Synchro to Digital-Resolver to Digital Converters
SDC-RDC 20
Digital / Synchro Converter
Computer Conversions Corporation
SDC & RDC 20 BIT Synchro / Resolver to Digital Converter
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Product
Synchro/ARINC 429/Fuel Flow Modules
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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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Product
Phase Angle Voltmeter, Industry Standard
2250A
Phase Angle Voltmeter
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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Synchro to Digital-Resolver to Digital Converters
SDC40-RDC40
Digital / Synchro Converter
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.





























