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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。因為由加速度傳感器產(chǎn)生的電量是很小的，因此傳感器產(chǎn)生的電信號很容易受到噪聲干擾，需要用靈敏的電子器件對其進(jìn)行放大和信號調(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3302A是一款兩軸IEPE加速度傳感器/振動傳感器，專門狀態(tài)與使用監(jiān)控系統(tǒng)和主動振動控制而設(shè)計，， 10 mV/gd的靈敏度，同時具有微型通孔設(shè)計。
The Dytran 3302A 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. Offered with a sensitivity of 10 mV/g, units incorporate a radial 3-pin "Mighty Mouse™" connector with a 5/16-28 thread.
Design of the Dytran model 3302A features quartz sensing elements, operating in shear mode and packaged in a compact stainless steel housing. The distinguishing feature of these accelerometers is their Dytran developed integral mounting bracket design, which facilitates improved sensor performance while eliminating costs associated with separate mounting brackets. They also offer a reduced mass, as compared to conventional sensors and mounting brackets. The Dytran model 3302A 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. 10 to 1,000 Hz frequency range (±5%)
4. 3-pin "Mighty Mouse™" radial connector
5. ?.31 thru hole mount
6. 30 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)
主動振動控制
2. Health and Usage Monitoring Systems (HUMS)
狀態(tài)和使用振動監(jiān)測系統(tǒng)
3. Transmission vibration monitoring
傳動振動監(jiān)測
Weight, Max 1.05 oz 30 grams
Size Length x Width x Height 1.05 x 1.208 x .406 Inches 26.67 x 30.68 x 10.31 mm
Resonant Frequency > 26 kHz > 26 kHz
Equivalent Electrical Noise Floor 0.007 Grms 0.069 m/s2 rms
Linearity [2] ± 1% F.S. ± 1% F.S.
Maximum Transverse sensitivity 5 % 5 %
Strain Sensitivity @ 250με 0.012 g/με 0.12 m/s2/με
ENVIRONMENTAL
Maximum Vibration ± 600 Gpeak ± 5886 m/s2 peak
Maximum Shock ± 3000 Gpeak ± 29430 m/s2 peak
Temperature Range -60 to 250 °F -54 to 121 °C
Seal, Hermetic Welded/GTM Header Welded/GTM Header
ELECTRICAL
Supply Current Range [3] 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, Nom 0.3 to 1.5 Sec 0.3 to 1.5 Sec
Electrical Isolation, Case Ground To Mounting Surface 10 GΩ,min 10 GΩ,min
訂貨型號
3302A
配件
(1) model 6555A adaptor bushing (?.25 thru hole)
(2) model 6555A1 adaptor bushing(?.19 thru hole)
Compatible Cables: 6891A
相關(guān)型號
3303A 三軸機載型加速度傳感器
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