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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，用于狀態和使用監控系統，靈敏度10mV/g，頻響范圍為07-5000Hz。
Expressly designed for use in Health and Usage Monitoring Systems (HUMS), the Dytran 3078A is an IEPE piezoelectric accelerometer, featuring a sensitivity of 10 mV/g with a frequency response of 0.7 to 5,000 Hz, packaged in a highly rugged stainless steel housing weighing 20 grams.
The distinguishing feature of model 3078A is the Dytran developed integral mounting bracket design, facilitating improved sensor performance while eliminating costs associated with separate mounting brackets. The miniature accelerometer is mounted within the bracket at the point where the cable and bracket are joined. This unique design also offers reduced mass, as compared to conventional sensors and mounting brackets. Dytran’s model 3078A is hermetically sealed for reliable operation within high humidity and dirty environments, as well as case isolated to avoid EMI/ground loop interference.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 0.7 to 5,000 Hz frequency range (±10%)
4. Integral 5-foot cable
5. ?.31 thru hole mount
6. 20 grams
7. Stainless steel
8. Hermetically sealed
9. Case isolated
10. Multiple sense directions available
11. Unique design eliminates need for separate mounting bracket
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)
狀態和使用監控系統
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
Weight, Max, less cable 0.7 oz 20 grams
Intregral Cable, Radially Mounted 2-wire, Pigtail End 2-wire, Pigtail End
PERFORMANCE
Sensitivity, ±5% [1] 10 mV/g 1.0 mV/m/s2
Range for ± 5 Volts Output ±500 g ±4905 m/s2
Frequency Response, ± 10% 1.1 to 5000 Hz 1.1 to 5000 Hz
Resonant Frequency > 26 kHz > 26 kHz
Broad Bａnd Resolution 0.0014 Grms 0.014 m/s2 rms
Linearity ± 1 % F S ± 1 % F S
Maximum Transverse sensitivity 5 % 5 %
Strain Sensitivity @ 250με 0.012 g/με 0.12 m/s2/με
Maximum Transverse sensitivity 5 % 5 %
Strain Sensitivity @ 250με 0.012 g/με 0.12 m/s2/με
ENVIRONMENTAL
Maximum Vibration ±600 Gpeak ±5886 m/s2 peak
Maximum Shock ±3000 Gpeak ±29430 m/s2 peak
Temperature Range -60 to +250 °F -51 to +121 °C
Seal Hermetic Hermetic
ELECTRICAL
Supply Current Range [3] 2 to 20 mA 2 to 20 mA
Compliance Voltage Range +18 to +30 Volts +18 to +30 Volts
Output Impedence,Typ 100 Ω 100 Ω
Bias Voltage 7 to 9 VDC 7 to 9 VDC
Discharge Time Constant 0.3 to 2.0 Sec 0.3 to 2.0 Sec
Electrical Isolation 10 GΩ,min 10 GΩ,min
訂貨型號
3078A
配件
(1) Model 6555A adaptor bushing (?.25 thru hole)
(2) Model 6555A1 adaptor bushing (?.19 thru hole)
相關型號
3077A
3079A
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