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IEPE是指一种自带电量放大器或电压放大器的加速度传感器。IEPE是压电集成电路的缩写。因为由加速度传感器产生的电量是很小的，因此传感器产生的电信号很容易受到噪声干扰，需要用灵敏的电子器件对其进行放大和信号调理。IEPE中集成了灵敏的电子器件使其尽量靠近传感器以保证更好的抗噪声性并更容易封装。
美国Dytran的3019A是一款微型IEPE加速度传感器/振动传感器，灵敏度10mV/g，上线频率响应达10000Hz。
The Dytran 3019A is a miniature IEPE accelerometer with a 10 mV/g sensitivity and an upper frequency response of 10,000 Hz.
Design of the model 3019A incorporates a quartz sensing element operating in compression mode, packaged in a highly rugged stainless steel housing, for a total weight of just 8 grams. Units also feature a 10-32 axial connector and 1/4-28 stud mounting capabilities. The sensor is hermetically sealed for reliable operation in high humidity and dirty environments and base isolated to avoid EMI/ground loop interference.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 1 to 10,000 Hz frequency range (±5%)
4. 10-32 axial connector
5. 1/4-28 stud mount
6. 8 grams
7. Stainless steel
8. Hermetic
9. Base isolated
10. IEPE
应用
1. High frequency industrial vibration measurements
高频工业振动检测
2. Vibration control
振动控制
3. General purpose vibration monitoring
通用振动监测
Size Hex x Height 0.375 x 0.73 Inches 9.5 x 18.5 mm
Connector Top Mounted 10-32 Micro Coax 10-32 Micro Coax
Mounting Provision Integral Stud 1/4-28 X .20 Long 1/4-28 X .20 Long
Sensitivity, ±5% [1] 10 mV/g 1 mV/m/s2
Range F.S for ± 5 Volts Output ±500 g ±4905 m/s2
Frequency Response, ±5% 1 to 10000 Hz 1 to 10000 Hz
Frequency Response, ±3db .3 to 15000 Hz .3 to 15000 Hz
Resonant Frequency >50 kHz >50 kHz
Equivalent Electrical Noise Floor 0.007 grms 0.0687 m/s2 rms
Linearity ± 2% % F.S.
Maximum Transverse Sensitivity 5 % 5 %
Strain Sensitivity @ 250με 0.003 g/με 0.03 m/s2/με
Maximum Vibration ±1000 gpeak ±9810 m/s2 peak
Maximum Shock ±3000 gpeak ±29430 m/s2 peak
Temperature Range -60 to +300 °F -51 to +149 °C
Seal, Hermetic Welded/Glass To Metal Welded/Glass To Metal
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 Impedance, Typ 100 Ω 100 Ω
Bias Voltage +7.5 to +9.5 VDC +7.5 to +9.5 VDC
Discharge Time Constant 0.5 to 1.0 Sec 0.5 to 1.0 Sec
Electrical Isolation, Min. 10 MΩ 10 MΩ
订货型号
3019A1 工业型
配件
1. Model 4110C current source power unit
2. 电缆线：6010A, 6011A, 6012A, 6016A, 6018A, 6022A, 6026A, 6032A, 6033A, 6049A, 6050A, 6051A, 6053A, 6054A, 6066A, 6069A, 6093A, 6099A, 6400A, 6401A, 6412A, 6429A, 6924A, 6930A, 6991A
