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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(xiě)。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3077A是一款I(lǐng)EPE加速度傳感器/振動(dòng)傳感器，適用于高頻振動(dòng)監(jiān)測(cè)，靈敏度10mV/g，頻率響應(yīng)1.1-5000Hz。
The Dytran 3077A is an IEPE piezoelectric accelerometer, designed expressly for Rotor, Track and Balance (RTB) and other high frequency aircraft vibration monitoring applications.
Offered with a sensitivity of 10 mV/g, frequency response of 1.1 to 5,000 Hz, and a 3-foot integral cable, the distinguishing feature of model 3077A 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 3077A 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
1.1 to 5,000 Hz frequency range (±10%)
3. Integral 3-foot cable
4. ?.31 thru hole mount
5. 11 grams
6. Stainless steel
7. Hermetically sealed
8. Case isolated
9. Multiple sense directions available
10. Unique design eliminates need for separate mounting bracket
11. IEPE
應(yīng)用
1. Health and Usage Monitoring Systems (HUMS)
狀態(tài)和使用監(jiān)控系統(tǒng)
2. Rotor, Track and Balance (RTB)
轉(zhuǎn)子，跟蹤和平衡
3. Transmission vibration measurements
傳動(dòng)裝置振動(dòng)測(cè)量
Weight, Less Cable, Max 0.39 oz 11 grams
Sensitivity, ± 5% [2] 10 mV/g 1 mV/m/s2
Range F.S for ± 5 Volts
Output ±500 g ±4905 m/s2
Frequency Range, ± 10% 1.1 to 5000 Hz 1.1 to 5000 Hz
Resonant Frequency > 26 kHz > 26 kHz
Equivalent Electrical Noise Floor 0.007 Grms 0.07 m/s2 rms
Transverse Sensitivity, Max 5 % 5 %
Linearity [3] ± 1% % F.S. ± 1% % F.S.
Strain Sensitivity @ 250µσ 0.012 G's/µσ 0.012 G's/µσ
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
Coefficient of Thermal Sensitivity 0.03 %/°F 0.05 %/°C
Supply Current Range [4] 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
訂貨型號(hào)
3077A
配件
(1) Model 6555A adaptor bushing (?.25 thru hole),
(2) Model 6555A1 adaptor bushing (?.19 thru hole)
相關(guān)型號(hào)
3078A
3079A
(空格分隔,最多3個(gè),單個(gè)標(biāo)簽最多10個(gè)字符)
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