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?yàn)橛杉铀俣葌鞲衅鳟a(chǎn)生的電量是很小的，因此傳感器產(chǎn)生的電信號(hào)很容易受到噪聲干擾，需要用靈敏的電子器件對(duì)其進(jìn)行放大和信號(hào)調(diào)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3232A1一款兩軸IEPE加速度傳感器/振動(dòng)傳感器，專門為狀態(tài)與使用監(jiān)控系統(tǒng)而設(shè)計(jì)，10 mV/gd的靈敏度，自帶3針接口與5/16-28螺紋孔設(shè)計(jì)。
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. ?.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
應(yīng)用
1. Active Vibration Control (AVC)
主動(dòng)振動(dòng)控制
2. Health and Usage Monitoring Systems (HUMS)
狀態(tài)和使用振動(dòng)系統(tǒng)
3. General purpose vibration monitoring
一般用途振動(dòng)監(jiān)測(cè)
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
訂貨型號(hào)
3232A1
配件
電纜：6891A
相關(guān)型號(hào)
3302A
