The MOD VIIA is a cost optimized member of the MOD VII family with medium accuracy navigation and tactical grade performance in thermally modeled strap down applications.
Description: How Does it Work?
The MOD VIIA accelerometer is a miniature gas damped, force rebalanced, pendulous accelerometer. The acceleration sensor is a dc torque capacitive displacement sensing pickoff. Acceleration inputs applied along the sensitive axis cause a relative displacement of the proof mass to the case. This displacement is sensed by the pickoff electronics resulting in a pickoff error signal which is amplified and demodulated. The error signal is converted to an analog current and applied to the torquer coil to bring the proof mass back to a null pickoff error position. The feedback current is proportional to the sensed acceleration input. The MOD VIIA also contains an integral ASIC capture loop, a temperature sensor, and it needs only ±15V dc power for operation.
Mature design, proven reliability
Integral analog capture loop and temperature sensor