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IEPE是指一种自带电量放大器或电压放大器的加速度传感器。IEPE是压电集成电路的缩写。因为由加速度传感器产生的电量是很小的，因此传感器产生的电信号很容易受到噪声干扰，需要用灵敏的电子器件对其进行放大和信号调理。IEPE中集成了灵敏的电子器件使其尽量靠近传感器以保证更好的抗噪声性并更容易封装。
美国Dytran的3232A1一款两轴IEPE加速度传感器/振动传感器，专门为状态与使用监控系统而设计，10 mV/gd的灵敏度，自带3针接口与5/16-28螺纹孔设计。
The Dytran 3232A1 is a biaxial IEPE piezoelectric accelerometer, designed for use in Health and Usage Monitoring Systems (HUMS) as well as Active Vibration Control (AVC) applications typically found on commercial and military aircraft. Units are offered with a sensitivity of 10 mV/g and incorporate a radial 3-pin "Mighty Mouse™" connector with 5/16-28 thread.
The distinguishing feature of model 3232A1 is its Dytran developed integral mounting bracket design, facilitating improved sensor performance while eliminating costs typically associated with separate mounting brackets. Units also offer reduced mass, as compared to conventional sensors and mounting brackets. The Dytran model 3232A1 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. 3.3 to 2,500 Hz frequency range (±10%)
4. 3-pin "Mighty Mouse™" radial connector
5. Ø.27 thru hole mount
6. 45 grams
7. Stainless steel
8. Hermetically sealed
9. Case isolated
10. Unique design eliminates need for separate mounting bracket
11. Biaxial
12. IEPE
应用
1. Active Vibration Control (AVC)
主动振动控制
2. Health and Usage Monitoring Systems (HUMS)
状态和使用振动系统
3. General purpose vibration monitoring
一般用途振动监测
Weight 1.58 oz 45 grams
Sensitivity +/- 10% [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, ± 10% .33 to 2500 Hz 3.3 to 2500 Hz
Resonant Frequency, NOM 30000 Hz 30000 Hz
Equivalent Electrical Noise Floor 0.007 g rms 0.07 m/s2 rms
Linearity [2] ± 1% %F.S ± 1% %F.S
Transverse Sensitivity Max 5% 5%
Sensitivity, Max. Strain Sensitivity @250με 0.012 g/με 0.12 m/s2/με
ENVIROMENTAL
Maximum Vibration ±500 gpk ±4900 m/s2 pk
Maximum Shock ±5000 gpk ±49000 m/s2 pk
Temperature Range -60 to +250 °F -51 TO 121 °C
Seal Hermetic Hermetic
Coefficient Of Thermal Sensitivity 0.002 %/°F 0.002 %/°C
ELECTRICAL
Supply Current [3] 2 to 20 mA 2 to 20 mA
Compliance Voltage Range 18 to +30 V 18 to +30 V
Output Impedence TYP 100 Ω 100 Ω
Bias Voltage +9 to +12 VDC +9 to +12 VDC
Discharge Time Constant 0.8 - 2 sec 0.8 to 2 sec
Output Signal Polarity [4] Positive Positive
Electrical Isolation [5] 10 GΩ 10 GΩ
订货型号
3232A1
配件
电缆：6891A
