AS-827 Series

ROTARY VARIABLE DIFFERENTIAL TRANSFORMER

AS-827-001 Rotary Variable Differential Transformer

Features

  • Brushless, non-contacting technology
  • Repeatable position sensing with infinite resolution
  • Housed and frameless versions available
  • Single cycle (+/- 80 deg.) or dual cycle (+/- 40 deg.)
  • Standard size 8 (housed version) with servo clamp interface available
  • Multiple channel (tandem) versions available
  • Geared configurations available

Benefits

  • Long life
  • High reliability
  • High accuracy
  • Repeatable performance
  • Robust, compact construction
  • Custom electrical and mechanical designs available – contact factory with requirements
Model No. AS-827-001 AS-827-002 AS-827-003 AS-827-004
Input
Voltage (VRMS)* 8.0  8.0 8.0 8.0
Frequency (Hz) 1870 1870 1870 1870
Impedance 65 + j475 65 + j475 65 + j475 65 + j475
Output
Scale Factor (V / Deg.) 0.061 0.068 0.068 0.061
Angular Disp. (+/- Deg.) 40 40 40 42
Accuracy (+/- Deg.) 0.2 0.3 0.3 0.4, 0.6
Phase Angle (+/- Deg.) 5 5 5 7
Impedance 78 + j88 78 + j88 78 + j88 78 + j88
Test Load 7,000 pF 7,000 pF 7,000 pF 7,000 pF
Variation with Temp. (Deg. C Max.) 0.05 0.05 0.05 0.05
Crosstalk (%) N/A N/A N/A N/A
Weight (oz) 2.0 2.0 2.0 2.0

Note: If your application requires gearing or other complex mechanical configurations, please provide us with your requirements.

Typical Applications

  • Flight control / navigation
  • Flap actuators
  • Fuel control
  • Cockpit control

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