IEPE是指一種自帶電量放大器或電壓放大器的加速度傳感器。IEPE是壓電集成電路的縮寫。因為由加速度傳感器產生的電量是很小的，因此傳感器產生的電信號很容易受到噪聲干擾，需要用靈敏的電子器件對其進行放大和信號調理。IEPE中集成了靈敏的電子器件使其盡量靠近傳感器以保證更好的抗噪聲性并更容易封裝。
美國Dytran的3062A是一款IEPE加速度傳感器/振動傳感器，專門為商用飛機振動監測和軍事制造，集成一體的高耐久性石英剪切技術。10 mV/gd的靈敏度，同時具有微型通孔的設計。
Expressly designed for commercial and military aircraft vibration monitoring, the Dytran 3168F is a ring style IEPE piezoelectric accelerometer incorporating the use of high stability quartz shear technology.
The model 3168F is offered with a 10 mV/g sensitivity and features a miniature thru hole design, allowing the sensor to be turned 360° prior to securing for ease of sensor installation. Units are hermetically sealed for reliable operation in high humidity and dirty environments, as well as case isolated to avoid EMI/ground loop interference. Case ground isolation is achieved by internally isolating the accelerometer element, complete with Faraday shield, from the outer housing.
The Dytran model 3168F features an integral 4-foot molded Viton™ cable, terminating in twisted shielded pair flying leads. Custom lengths and connectors are also available; consult the factory for details.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 1 to 20,000 Hz frequency range (±5%)
4. Integral 4-foot cable
5. 8-32 thru hole mount
6. 23 grams
7. Stainless steel
8. Hermetically sealed
9. Case isolated
10. 360° cable orientation
11. High frequency response
12. IEPE
應用
1. High frequency aircraft/airframe vibration measurements
高頻飛行器機身振動測量
2. Health and Usage Monitoring Systems (HUMS)
狀態和使用監測系統
3. Rotor, Track and Balance (RTB)
轉子、跟蹤和平衡
4. Transmission vibration measurements
傳動裝置振動測量
PHYSICAL
Weight, Less Cable, Max 0.81 oz 23 grams
PERFORMANCE
Sensitivity +/- 5% [1] 10 mV/g 1.02 mV/ m/s2
Range F.S. For ± 5 Volts Output ± 500 g pk ± 4905 m/s2 pk
Frequency Range ± 5% 1 to 20,000 Hz 1 to 20,000 Hz
Resonant Frequency > 50 KHz > 50 KHz
Linearity [2] ± 1 %F.S ± 1 %F.S
Transverse Sensitivity, Max. 5 % 5 %
Equivalent Electrical Noise Floor, Max 0.007 grms 0.07 m/s2 rms
ENVIRONMENTAL
Maximum Vibration 600 ±gpk 5886 ± m/s2 pk
Maximum Shock 3000 ±gpk 29430 ± m/s2 pk
Temperature Range (Operational) -60 to +250 °F -51 to +121 °C
Seal Hermetic Hermetic
Base Strain Sensitivity 0.001 g/με 0.01 m/s2 / με
ELECTRICAL
Supply Current [3] 2 to 20 mA 2 to 20 mA
Compliance Voltage Range 18 to 30 VDC 18 to 30 VDC
Output Impedance, Typ. 100 Ω 100 Ω
Bias Voltage 7.5 to 9.5 VDC 7.5 to 9.5 VDC
Discharge Time Constant 0.5 - 1.2 sec 0.5 - 1.2 sec
Electrical Isolation, Min 10 GΩ 10 GΩ
Output Signal Polarity Positive Positive
訂貨型號
3168F
相關型號
3326A1
