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生的電量是很小的，因此傳感器產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行放大和信號調理。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3217AA是一款IEPE加速度傳感器/振動傳感器，可在低至零下196攝氏度下正常工作。
The Dytran 3334A1 is a miniature IEPE accelerometer with continuous operation down to -320°F (-196°C), offered with a 10 mV/g sensitivity, an overall height of just 0.33-inches (8.3-millimeters) and a total weight of 2 grams.
Sensors feature a lightweight titanium construction, a 5-40 stud mount and 5-44 radial connector. Units are hermetically sealed for reliable operation in high humidity and dirty environments.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 1 to 10,000 Hz (±5%)
4. 5-44 radial connector
5. 5-40 stud mount
6. 2 grams
7. Titanium
8. Hermetic
9. -320°F (-196°C) operation
10. IEPE
應用
1. Environmental Stress Screening (ESS)
環境應力篩選
2. Modal and structural analysis of small objects in cryogenic applications
小物品低溫應用的模態分析和架構分析
3. Product response testing in extreme environments
環境下的產品響應試驗
1. General purpose vibration measurements in cryogenic applications
低溫應用中的振動測量
參數
Weight 0.07 oz 2.0 grams Notes:
Connector Type 5-44 UNF-2A 5-44 UNF-2A
Material, Housing/Connector Titanium Titanium
Sensing Element Quartz Quartz
Sensitivity, ±10% [1] 10 mV/g 1 mV/m/s2
Frequency Range, ± 5% 1 to 10000 Hz 1 to 10000 Hz
Resonant Frequency > 45 kHz > 45 kHz
Equivalent Electrical Noise Floor 0.007 Grms/√(Hz) 0.07 m/s2 rms/√(Hz)
Linearity [2] ±1 % F.S. ±1 % F.S.
Maximum Transverse sensitivity 5 % 5%
Strain Sensitivity @ 250µε 0.002 g/με 0.02 m/s2/µε
Maximum Vibration 600 Gpeak 5886 m/s2 peak
Maximum Shock 3000 Gpeak 29430 m/s2 peak
Temperature Range -320 to +250 °F -196 to 121 °C
Coefficient of Thermal Sensitivity 0.04 %/°F 0.07 %/°C
Seal Hermetic Hermetic
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 ? 100 ?
Bias Voltage +7.0 to +9.0 VDC +7.0 to +9.0 VDC
Discharge Time Constant 0.3 to 1.5 Sec 0.3 to 1.5 Sec
Electrical Isolation 10 G?,min 10 G?,min
訂貨型號
3334A1
配件
Recommended Accessories: model 4110C current source power unit, model 6265 magnetic mounting base, model 6268 isolated mounting base
Compatible Cables: 6014A, 6017A, 6021A, 6024A, 6025A, 6028A, 6029A, 6040A, 6056A, 6092A
相關低溫型號
3306A1
3143M16
3045A
