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3315A是一款單軸IEPE加速度傳感器/振動(dòng)傳感器，專(zhuān)門(mén)為狀態(tài)與使用監(jiān)控系統(tǒng)和主動(dòng)振動(dòng)控制而設(shè)計(jì)，適用于商用和飛行器的振動(dòng)測(cè)量。

The Dytran 3315A is a single axis IEPE 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.

Offered with a 250g range and 20 mV/g sensitivity, the Dytran model 3315A has an upper frequency response of 10,000 Hz. As an IEPE sensor the model 3315A features built-in electronics, eliminating the need for an external charge amplifier and converter. Design of the model 3315A features low noise JFET electronics packaged in a compact, rugged, stainless steel housing with a radial 2-pin military Bayonet-style connector and 1/4-28 mounting stud.

The Dytran model 3315A features internal case ground isolation to avoid EMI/ground loop interference and hermetic sealing, for reliable operation in high humidity and dirty environments. With its durability, compact size and mounting characteristics, the Dytran model 3315A is ideally suited for a variety of high frequency aircraft/airframe vibration measurements.

特性

1. 20 mV/g sensitivity

2. 250g range

3. 0.5 to 10,000 Hz frequency range (±3dB)

4. 2-pin military Bayonet-style radial connector

5. 1/4-28 tapped hole

6. 49 grams

7. Stainless steel

8. Hermetically sealed

9. Case isolated

10. Low noise JFET electronics

11. Low profile design

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)監(jiān)測(cè)系統(tǒng)

3. Permanent or walk-around vibration monitoring of rotating machinery

旋轉(zhuǎn)機(jī)械的振動(dòng)監(jiān)測(cè)

4. Rotor, Track and Balance (RTB)

轉(zhuǎn)子，跟蹤和平衡

Weight 1.72 oz 49.0 grams

Sensitivity, ±15% [1] 20 mV/g 2 mV/m/s2

Range for ± 5 Volts Output 250 g 2453 m/s2

Frequency Response, ± 3db 0.5 to 10000 Hz 0.5 to 10000 Hz

Resonant Frequency >28 kHz >28 kHz

Broad Bａnd Resolution 0.00075 Grms 0.007 m/s2 rms

Linearity [2] ±1 % F.S. ±1 % F.S.

Maximum Transverse sensitivity 5 % 5 %

Strain Sensitivity @ 250με 0.003 g/με 0.03 m/s2/με

SENSITIVITY DEVIATION (%)

Maximum Vibration 500 Gpeak 4905 m/s2 peak

Maximum Shock 5000 Gpeak 49050 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 +20 to +30 Volts +20 to +30 Volts

Output Impedance, Max 150 Ω 150 Ω

Bias Voltage 8 to 12 VDC 8 to 12 VDC

Discharge Time Constant 0.5 to 0.8 Sec 0.5 to 0.8 Sec

訂貨型號(hào)

3315A

配件

Model 6176 mounting stud (1/4-28 to 1/4-28)

相關(guān)型號(hào)

3326A1

3315A 01.png

關(guān)鍵詞：電源IC 監(jiān)控系統(tǒng)

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