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MEMS static response acceleration sensor-P81AS
Product Description
Model P81AS is a high-sensitivity, low noise accelerometer which measures acceleration and low-frequency vibration. P81AS is a capacitive accelerometer family utilizes a silicon Micro-Electro-Mechanical System (MEMS) variable capacitance sensing element. The sensing element 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 plate 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 single-ended 2.5 ± 2V. The accelerometer is powered by a single regulated supply between 8 to 36 Vdc. Thermal drift has been compensated by internal circuit for the best environment stability. The sensing element and electronics are contained in a lightweight housing with an integral cable terminated by pigtails or specified connector. Signal ground is isolated from the test object that benefit from the anodized aluminum housing. The accelerometer can be mounted by M3 metric screw or adhesive. P81AS is well-suited for a wide variety of R&D applications requiring precision measurements and packaging for demanding application and handling needs.
Key Features
DC response
2 to 500g full scale
Extreme low noise
High frequency response
Excellent thermal stability
Motion, low frequency, tilt
5K g shock survivability
Applications
Flight test
Automotive road testing
Civil engineering structures
Railway comfort
Aviation and aerospace Aviation and aerospace
Information & Quotation
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Specification
Dynamic Performance | Unit | ||||||||||
Measurement Range | g | ±2 | ±5 | ±10 | ±20 | ±30 | ±50 | ±100 | ±500 | ||
Sensitivity ±10% | mV/g | 1000 | 400 | 200 | 100 | 67 | 40 | 20 | 4 | ||
Noise density | ug/√Hz | 20 | 80 | 80 | 160 | 160 | 25 | 30 | 150 | ||
Residual noise (passband) | μVrms | 650 | 1000 | 550 | 550 | 550 | 250 | 300 | 300 | ||
Frequency Range ±5% | Hz | 0～800 | 0～4500 | 0～7000 | |||||||
Frequency Range ±3dB | Hz | 0～1300 | 0～10000 | ||||||||
Transverse Sensitivity | % | <2 | |||||||||
Non-Linearity | % FSO | ±1 | |||||||||
Shock Limit | g | 5000 | |||||||||
Environmental Parameters | |||||||||||
Temperature Sensitivity Coefficient -40～+125°C | % | ±2.5 | |||||||||
Operating and Storage Temperature | °C | -40~125 | |||||||||
Bias Voltage | Vdc | 2.5 | |||||||||
Electrical Characteristics | |||||||||||
Output Impedance | Ω | ＜100 | |||||||||
Full Scale Output Voltagea | Vpk | ±2 | |||||||||
Insulation Resistance (@100vdc) | MΩ | ＞100 | |||||||||
Excitation Voltage | Vdc | 8～36 | |||||||||
Excitation Current | mA | ＜15 | |||||||||
Physical Properties | |||||||||||
Weight (Cable Not Included) | Grams | 12 | |||||||||
Mounting Torque | lb-in (Nm) | 6 (0.7) | |||||||||
Turn On Time | mSEC | <100 | |||||||||
Housing Material | Al Alloy, Anodized Black | ||||||||||
Humidity | Epoxy Sealed | ||||||||||
Output Method | IEPE Output | ||||||||||
Random Accessories | |||||||||||
HS002 | M3x16 Socket Head Cap Screws | 2pcs Included | |||||||||
HS003 | Ø3 SST Washer | 2pcs Included | |||||||||
CR001 | LEMO FGG-1B-307 Connector | Optional | |||||||||
AM005 | 8 Channels Data Acquisition System | Optional | |||||||||
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