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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3062A1是一款IEPE加速度传感器/振动传感器，自带3针卡口接头和1/4-28螺纹孔，频带广，适用于大部分的振动测量，灵敏度25mV/g。
The Dytran 3062A1 is an IEPE piezoelectric accelerometer expressly designed to cover most wide band frequency vibration measurement points of Rotor, Track and Balance (RTB); airframe; helicopter; and fixed wing aircraft. The industry has commonly referred to these sensors as "spark plug type", due to their similar appearance.
Available with a sensitivity of 25 mV/g, the model 3062A1 features a hermetically sealed stainless steel construction for use in high humidity and dirty environments, as well as case isolation to avoid EMI/ground loop interference. Units feature an axial mounted military style 3-pin Bayonet connector, 1/4-28 mounting threads and lockwire holes.
特性
1. 25 mV/g sensitivity
2. 200g range
3. 0.48 to 10,000 Hz frequency range (±5%)
4. 3-pin military Bayonet-style axial connector
5. 1/4-28 stud mount
6. 40 grams
7. Stainless steel
8. Hermetically sealed
9. Case isolated
10. Spark-plug shaped accelerometer package
11. IEPE
应用
1. Wide-band frequency aircraft/airframe vibration measurements
宽带频率飞机机身振动测量
2. Health and Usage Monitoring Systems (HUMS)
状态和使用监控系统
3. Rotor, Track and Balance (RTB)
转子，跟踪和平衡
4. Transmission vibration measurements
传动装置振动测量
5. Commercial and military helicopter vibration monitoring
商用和军用直升机振动监测
Weight, Max 1.40 oz 40 grams
Sensitivity, ±5% [2] 25 mV/g 2.55 mV/m/s2 IC charge amplifier.
Range F.S for ± 5 Volts Output ±200 g ±1962 m/s2
Frequency Range ±5% 0.48 to 10000 Hz 0.48 to 10000 Hz
Resonant Frequency >30 kHz >30 kHz
Equivalent Electrical Noise Floor 0.012 Grms 0.118 m/s2 rms
Linearity [3] ± 1% % F.S. ± 1% % F.S.
Maximum Transverse sensitivity 5 % 5 %
ENVIRONMENTAL
Maximum Vibration ±600 G's,peak ±5886 m/s2 peak
Maximum Shock ±3000 G's,peak ±29430 m/s2 peak
Temperature Range -60 to+305 °F -54 to 152 °C
Seal Hermetic Hermetic
Electrical
Supply Current Range [4] 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 1.0 to 1.8 Sec 1.0 to 1.8 Sec
Output Signal Polarity for Acceleration Towards Top Positive Positive
Electrical Isolation, Ground (Pin B) to case( pin A) 10 GΩ,min 10 GΩ,min
订货型号
3062A1
