Type 8396A... triaxial capacitive accelerometer family utilizes a silicon Micro-Electro-Mechan
ical System (MEMS) variable capacitance sensing element. The sensing element of each axis consists of a very small inertial mass and a flexure element cantilever positioned between two plates. As the mass deflects under acceleration, the capacitance between these plates changes. AC excitation and synchronous amplitude demodulation circuitry contained in the accelerometer's internal signal conditioner provides an analog output signal proportional to the applied acceleration. This output signal is scaled as a voltage which is proportional to the applied acceleration.
The output signal format is available as bipolar 0±4 V, single ended 2.5±2 V and 0±4 V or 0±8 V differential. The accelerometer is powered by a single regulated supply between 6 and 50 VDC. Temperature output is provided if external compensation of the output signal is desired. The sensing element and electronics are contained in a lightweight, welded titanium housing with either a circular 9 pin connector or an integral cable* terminated by pigtails or 9 pin D-Sub connector. Ground isolation is obtained by mounting the sensor using one of the off-ground accessories or by adhesively mounting the sensor to the test object using the side of the sensor with the integral hard anodized plate.
Type 8396A... triaxial capacitive accelerometer family utilizes a silicon Micro-Electro-Mechanical System (MEMS) variable capacitance sensing element. The sensing element of each axis consists of a very small inertial mass and a flexure element cantilever positioned between two plates. As the mass deflects under acceleration, the capacitance between these plates changes. AC excitation and synchronous amplitude demodulation circuitry contained in the accelerometer's internal signal conditioner provides an analog output signal proportional to the applied acceleration. This output signal is scaled as a voltage which is proportional to the applied acceleration.
The output signal format is available as bipolar 0±4 V, single ended 2.5±2 V and 0±4 V or 0±8 V differential. The accelerometer is powered by a single regulated supply between 6 and 50 VDC. Temperature output is provided if external compensation of the output signal is desired. The sensing element and electronics are contained in a lightweight, welded titanium housing with either a circular 9 pin connector or an integral cable* terminated by pigtails or 9 pin D-Sub connector. Ground isolation is obtained by mounting the sensor using one of the off-ground accessories or by adhesively mounting the sensor to the test object using the side of the sensor with the integral hard anodized plate.
Enlarge
Kistler Group
