In such a system, accuracy on the order of one degree is attainable. In simpler terms, a torque synchro system is a system in which the transmitted signal does the usable work. In a torque system, a synchro will provide a low-power mechanical output sufficient to position an indicating device, actuate a sensitive switch or move light loads without power amplification. There are two types of synchro systems: torque systems and control systems. Large synchros were used on naval warships, such as destroyers, to operate the steering gear from the wheel on the bridge. Selsyn motors were widely used in motion picture equipment to synchronize movie cameras and sound recording equipment, before the advent of crystal oscillators and microelectronics. Digital devices such as the rotary encoder have replaced synchros in most other applications. Smaller synchros are still used to remotely drive indicator gauges and as rotary position sensors for aircraft control surfaces, where the reliability of these rugged devices is needed. Early systems just moved indicator dials, but with the advent of the amplidyne, as well as motor-driven high-powered hydraulic servos, the fire control system could directly control the positions of heavy guns. Information about NAI and its products can be found at onto the connection description of a synchro transmitterįire-control system designs developed during World War II used synchros extensively, to transmit angular information from guns and sights to an analog fire control computer, and to transmit the desired gun position back to the gun location. NAI provides the highest quality COTS and Custom products in Commercial, Extended Temperature and Rugged versions. North Atlantic Industries (NAI) is a leading independent supplier of Embedded I/O Boards, Power Supplies and Motion Simulation and Measurement Instruments for the Military, Aerospace and Homeland Security Industries. "They particularly like its high accuracy, continuous built-in-test, and superior drive capability." "The 75DS2 provides our customers with a flexible Synchro/Resolver or LVDT/RVDT simulation 3U cPCI card that reduces size, complexity and cost," said Lino Massafra, VP of Sales and Marketing at NAI. Pricing for 100 pieces of the 75DS2 starts at $2,495 each. Conduction cooled versions with wedgelocks are also available. The 75DS2 is available with an operating temperature range of -40☌ to +85☌ or 0☌ to +70☌. The 75DS2 3U cPCI card is ideally suited for military and commercial programs, including airborne, shipboard, ground mobile and C3I applications. Each Digital-to-Synchro/Resolver and Digital-to-LVDT/RVDT Converter channel is self-calibrating, without requiring removal of the card. BIT is totally transparent to the user, requires no programming, and doesn't interfere with the normal operation of the card. The 75DS2 provides continuous background Built-In-Test (BIT) on all functions and channels, including reference and signal loss detection. This 2nd generation card is a replacement - for new designs - for either NAI's 75DS1 or 75DL1. Additionally, each unit includes wrap-around self-test, programmable output angle rotation, and an optional 3VA programmable reference supply. The unit requires +5Vdc and ☑2Vdc power supplies, and operates over a frequency range of 47 Hz to 10 KHz. Each channel has 16-bit resolution, ☑ arc-minute accuracy, and a short circuit protected output with 1.5, 2.2 or 3.0 VA drive capability. The DSP-based 75DS2 includes up to 4 independent, isolated, programmable Synchro/Resolver or LVDT/RVDT simulation channels. Each unit also includes wrap-around self-test, programmable output angle rotation, and optional 3 VA programmable reference supply.Ĥ-Channel Programmable Synchro/Resolver Simulation Card Now Available on 3U cPCI Card from NAIġ6-bit resolution and 1 arc-minute accuracy provided at 1.5VA output driveīohemia NY - North Atlantic Industries (NAI) has announced the availability of a 4-channel Digital-to-Synchro/Resolver or Digital-to-LVDT/RVDT Converter on a 3U cPCI card. Requiring +5 and Â☑2 Vdc power supplies, product operates over 47 Hz to 10 kHz range. Each has 16-bit resolution, Â☑ arc-min accuracy, and short circuit protected output with 1.5, 2.2, or 3.0 VA drive capability. On one 3U cPCI card, DSP-based 75DS2 includes up to 4 independent, isolated, programmable Synchro/Resolver or LVDT/RVDT simulation channels.
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