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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3202A是一款IEPE加速度传感器/振动传感器，内建静电屏蔽，防噪防静电，自带2针MIL-C5015接口和1/4-28的螺纹通孔。
The Dytran 3202A is a high sensitivity, ring style IEPE piezoelectric accelerometer with internal Faraday shield for electrostatic noise immunity, featuring a radial 2-pin MIL-C-5015 connector and 1/4-28 thru hole mount, allowing the sensor to be turned 360° prior to securing for greater ease of installation.
Available with a sensitivity of 100 mV/g, the model 3202A has a low end frequency response of 0.5 Hz and excellent low noise performance characteristics. Design of the model 3202A incorporates a ceramic shear sensing element, packaged in a highly rugged stainless steel housing. Units are hermetically sealed for reliable operation in high humidity and dirty environments, as well as case isolated to avoid EMI/ground loop interference.
特性
1. 100 mV/g sensitivity
2. 50g range
3. 0.5 to 5,000 Hz frequency range (±5%)
4. 2-pin radial connector
5. 1/4-28 thru hole mount
6. 160 grams
7. Stainless steel
8. Hermetic
9. Case isolated
10. 360° cable orientation
11. IEPE
应用
1. Industrial vibration monitoring
工业振动监测
2. Low frequency vibration measurements
低频振动测量
3. Slowly rotating industrial machinery
慢速旋转工业机械测量
4. Walkabout data collection
徒步旅行数据收集
5. General purpose vibration monitoring
一般用途振动监测
WEIGHT 160 GRAMS
SIZE, L x D x H 2.26 x 1.44 x 1.12 IN
MOUNTING PROVISION, (MOD 6523 SCREW PROVIDED) THRU HOLE, CAPTIVE 1/4-28 SCREW
ELECTRICAL CONNECTOR, RADIAL (MIL-C-5015) 2-PIN MILITARY 10SL-4P, HERMETIC
MATERIAL CASE/CONNECTOR 316L ST. STEEL
PERFORMANCE
SENSITIVITY, ± 5% [1] 100 mV/G
RANGE FOR ± 5 VOLTS OUT ±50 G
FREQUENCY RESPONSE, ± 5% .5 - 5,000 Hz
MOUNTED RESONANT FREQUENCY >25 kHz
EQUIV. ELECTRICAL NOISE FLOOR, (RESOLUTION) .0002 G RMS
AMPLITUDE NON-LINEARITY (ZERO BASED BEST FIT ST.LINE METHOD) 2.0 % F.S., MAX.
TRANSVERSE SENSITIVITY, MAX. 5 PERCENT
STRAIN SENSITIVITY .0015 G's PER MICROSTRAIN @ 250/
ENVIRONMENTAL
MAXIMUM VIBRATION 350 G's, RMS
MAXIMUM SHOCK 3000 G's, PEAK
TEMPERATURE RANGE -60 TO +250 oF
ENVIRONMENTAL SEAL GLASS TO METAL/WELDED, HERMETIC
ELECTRICAL
COMPLIANCE (SUPPLY) VOLTAGE RANGE [2] +20 to +30 VDC
EXCITATION CURRENT RANGE 2 to 20 mA
OUTPUT IMPEDANCE, NOM. 200 OHMS
OUTPUT BIAS VOLTAGE RANGE 11 to 13.0 VDC
DISCHARGE TIME CONSTANT 1.0 to 2.0 SEC.
OUTPUT SIGNAL POLARITY FOR ACCELERATION TOWARD TOP POSITIVE GOING
POWER/SIGNAL GROUND to CASE ISOLATION, MIN. 10 GΩ
订货型号
3202A 工业型
3202A1 工业型
3202A2 工业型
3202A3 工业型
配件
1. Model 6523 mounting screw (1/4-28)
2. Model 4110C current source power unit, model 6187 magnetic mounting base, model 6190 magnetic mounting base, model 6194 protective boot
3. 电缆：6038A, 6080A, 6082A, 6406A, 6407A, 6459A
