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(guó)Dytran的3236A是一款I(lǐng)EPE加速度傳感器/振動(dòng)傳感器，集成一體的高耐久性石英剪切技術(shù)。10 mV/gd的靈敏度，頻響高達(dá)10000Hz。
The Dytran 3236A is a ring style piezoelectric IEPE accelerometer, designed to offer reliable performance in temperatures up to +300°F (+149°C).
Incorporating a quartz crystal operating in shear mode, the Dytran model 3236A is offered with a sensitivity of 10 mV/g and an upper frequency response of 10,000 Hz. Elements are housed in a stainless steel package weighing 28.1 grams and feature a radial 3-pin "Mighty Mouse™" connector, and 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.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 1.2 to 10,000 Hz frequency range (±5%)
4. 3-pin "Mighty Mouse™" radial connector
5. ?.17 thru hole mount
6. 28.1 grams
7. Stainless steel
8. Hermetically sealed
9. Case isolated
10. 360° cable orientation
11. +300°F (+149°C) operation
12. IEPE
應(yīng)用
1. Aerospace flight testing
航空航天飛行試驗(yàn)
2. Health and Usage Monitoring Systems (HUMS)
狀態(tài)和使用監(jiān)測(cè)系統(tǒng)
3. Rotor, Track and Balance (RTB)
轉(zhuǎn)子、跟蹤和平衡
Weight 0.98 oz 28.1 grams
Resonant Frequency, NOM > 35 KHz > 35 KHz
Equivalent Electrical Noise Floor 0.009 g rms 0.0882 m/s2 rms
Linearity [3] ± 1 %F.S ± 1 %F.S
Transverse Sensitivity, Max. 5% 5%
Strain Sensitivity @250με 0.04 g/με 0.04 g/με
ENVIRONMENTAL
Maximum Vibration 5000 ±gpk 49000 ± m/s2 pk
Maximum Shock 10000 ±gpk 98000 ± m/s2 pk
Temperature Range ‐60 to +300 °F ‐55 to +149 °C
Seal Hermetic Hermetic
Coefficient Of Thermal Sensitivity 0.02 %/°F 0.02 %/°C
ELECTRICAL
Supply Current [4] 2 to 20 mA 2 to 20 mA
Compliance Voltage Range 18 to +30 V 18 to +30 V
Output Impedance TYP 150 Ω 150 Ω
Bias Voltage +7.5 to +9.5 VDC +7.5 to +9.5 VDC
Discharge Time Constant 0.4 to 1.0 sec 0.4 to 1.0 sec
Output Signal Polarity [5] positive positive
Electrical Isolation [6] 10 GΩ 10 GΩ
訂貨型號(hào)
3236A
配件
(1) model 6561 adaptor bushing (?.14 thru hole)
(2) model 6952A mounting screw (6-32)
相關(guān)型號(hào)
3326A1
