Central Aerohydrodynamic Institute
RUS
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Two-Axial Systems to Measure the Angular Position of Models and Mechanisms

Two-axial sensors are designed for measuring the angular positions of aircraft models in wind tunnels, elastically-scaled models surfaces and full-scaled objects to determine the local deformations, test benches components to determine the mass-inertial characteristics of aircraft and spacecraft models.

2ADXL203/A Sensor with analog output

Technical Characteristics

Measuring range, deg ±20
Error, arc second ±30
Error (at T = 20…50°), arc second ≤40
Drift of the indication within 5 hours, arc second 40
Measurement line, m 20
Power supply, V 5
Dimensions, mm 30×17×5
Weight, g 10
  • Two ADXL203 double-axis micro-electromecha­nic accelerometers with definite direction of sensitivity axis.
  • Compensation of initial accelerometers signals in differential amplifiers.
  • Alleviation of temperature error.
  • Design simplicity and small dimensions.
  • No moving elements.

2ADXL203/ADUC Sensor with digital output

Technical Characteristics

Measuring range, deg ±20
Error, arc second ±20
Power supply, V 5
Dimensions, mm 30×19×5
Weight, g 12
  • Accelerometers with microconverters.
  • Built-in temperature sensor.
  • 2 ADC 24 bit up to 80 kHz.
  • Programmed amplifier.
  • ARM7 TDMI Core 10 MHz.
  • Cased.
  • Data processing in microcontroller.
  • Algorithmic compensation of temperature error.
  • RS485 Interface.