Synchro & Resolver

12 items under this folder.

75DS1 Initial Angle

FAQ on the 75DS1 occasionally outputting 225 degrees or -135 degrees on initial command of 0 degrees.

75DS1 Synchro and Resolver Dual Function

FAQ on the capabilities of the NAI's 75DS1 board for simulating both Synchro and Resolver outputs.

Bench-Testing LVDT/RVDT Performance

FAQ on characterizing an LVDT or RVDT on the bench with a phase angle voltmeter: linearity, transformation ratio, phase shift, null voltage, input/output impedance, and maximum excitation.

Connect Synchro / Resolver to NAI Card / Instrument

FAQ on how to connect synchro / resolver to the NAI card and understand the signal convention.

DS1 Max Rotation

FAQ on achieving faster rotation speeds using the 64DS1 and 2-speed capability.

Handling High Voltage I/O

FAQ on handling high voltage I/O for NAI platforms and modules.

Max Velocity Tracking for Module

FAQ on maximum velocity that can be tracked by the module.

Phase Shift Limits and Quadrature Error

FAQ on how much reference-to-signal phase shift an S/D converter tolerates, where quadrature (90°-shifted) signal components come from, and how much angle error phase shift and quadrature actually cause.

Reference Waveform Distortion

FAQ on whether harmonic distortion of the reference (excitation) waveform affects the accuracy of a tracking S/D converter, and why distortion that differs between the SIN and COS channels is the case that matters.

Sync XYZ for Synchro Application

FAQ regarding the connection of synchro application outputs X, Y, and Z to NAI's pin description S1, S2, S3, S4.

Two Speed Synchro/Resolver Examples

FAQ on how 2-Speed Measurement data for Synchro/Resolver is calculated and presented.

VA Power Requirements

FAQ on calculating the output load 'VA' a D/S or D/R converter channel must supply, reducing it by capacitor-tuning the load, and the nominal Zso and other parameters of standard military synchros.