Accelerometer without display AAA215/A220
Vdcfor the aerospace industry

accelerometer without display
accelerometer without display
accelerometer without display
accelerometer without display
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Characteristics

Type
without display
Output signal
Vdc
Domain
for the aerospace industry
Acceleration range

Max.: 196 m/s² (643 ft/s²)

Min.: 10 m/s² (33 ft/s²)

Frequency

Max.: 150 Hz

Min.: 90 Hz

Description

- Measurement range: ±1g to ± 20g - Non-Linearity: ±0.05 to ±0.10 %FRO - Output: ± 5 Volts dc - Operating temperature: -55°C to +95°C (-67 to 203°F) - Frequency response: low frequency, high sensitivity AAA215/AAA220 Series Miniature Linear Servo Accelerometer The Altheris Sensors’ AAA200 range of Servo Accelerometers measure vector acceleration with high accuracy using a closed loop force balance torquer mechanism. A pendulous mass develops a torque proportional to the product of its mass unbalance and the applied acceleration. The movement of the mass is detected by a position sensor whose output signal is connected to a servo amplifier. The resulting current is fed into the torque motor which then develops a torque exactly equal to, but directly opposed to the initial torque from the pendulous mass. The mass then stops moving, assuming a position minutely differing from it’s initial zero ‘g’ position. Simultaneously, the current to the torque motor is fed through a stable resistor to provide an output voltage proportional to the applied acceleration. The system is electronically damped by means of a phase advancing network within the integrated servo amplifier. By adjusting the parameters of the servo amplifier and related electronic networks, the operating characteristics of a servo accelerometer can be optimised to suit a particular application.

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