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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(xiě)。因?yàn)橛杉铀俣葌鞲衅鳟a(chǎn)生的電量是很小的,，因此傳感器產(chǎn)生的電信號(hào)很容易受到噪聲干擾,，需要用靈敏的電子器件對(duì)其進(jìn)行放大和信號(hào)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(guó)Dytran的3205B是一款高性能IEPE加速度傳感器/振動(dòng)傳感器,，可在高達(dá)175攝氏度工作環(huán)境下運(yùn)行，專(zhuān)為井下鉆頭振動(dòng)監(jiān)測(cè)和其他低開(kāi)啟電壓應(yīng)用而設(shè)計(jì),。
The Dytran 3205B is a high performance IEPE accelerometer capable of operating at temperatures up to +347°F (+175°C) and was designed for down-hole drill head vibration monitoring and other low turn-on voltage applications where supply power is limited.
Sensors developed for down-hole vibration monitoring must be able to deliver accurate and reliable data, while simultaneously tolerating harsh conditions. Critical characteristics of these sensors include a miniature design, high temperature operation, and the ability to operate at low power levels. The Dytran model 3205B is ideal for such applications, as it is packaged in a miniature titanium housing with a vertical height of just 0.28-inches (7.1-millimeters) and was specially designed to operate from +4.0 to +4.5 VDC compliance voltage.
The Dytran model 3205B is offered with a 2 mV/g sensitivity and is designed with adhesive mounting capabilities. Weighing just 2 grams, units incorporate a 35-inch integral cable assembly terminating to flying leads.
特性
1. 2 mV/g sensitivity
2. 500g range
3. 0.64 to 5,000 Hz frequency range (±3db)
4. 35-inch integral cable
5. Adhesive mount
6. 2 grams
7. Operates from +4.0 to +4.5 VDC
8. +347°F (+175°C) operation
9. IEPE
應(yīng)用
1. Down-hole drill head vibration monitoring
井下鉆頭振動(dòng)監(jiān)測(cè)
2. Low turn-on voltage applications where power supply is limited
受限空間內(nèi)的低開(kāi)啟電壓應(yīng)用
WEIGHT (NOT INCLUDING PIGTAIL) 2.5 GRAMS
SIZE (HEX x HEIGHT) MODEL .31 x .28 INCHES
MOUNTING PROVISION ADHESIVE MOUNT
ELECTRICAL CONNECTION INTEGRAL PIGTAIL, AWG 30 35 INCHES
CASE /CAP MATERIAL TITANIUM ALLOY
PERFORMANCE
SENSITIVITY, ±10% [1] 2.0 mV/G
RANGE F.S. FOR ± 1 VOLTS OUT ± 500 G's
FREQUENCY RESPONSE, ± 3db [2] 0.64 to 5,000 Hz
MOUNTED RESONANT FREQUENCY, NOM. 30 kHz
EQUIVALENT ELECTRICAL NOISE (RESOLUTION) .02 G, RMS
AMPLITUDE NON-LINEARITY (SEE NOTE [3]) 1.0 % F.S., MAX.
TRANSVERSE SENSITIVITY, MAX. 5 PERCENT
STRAIN SENSITIVITY .001 G's PER MICROSTRAIN @ 250/??
ENVIRONMENTAL
MAXIMUM VIBRATION ±600 G's
MAXIMUM SHOCK 5000 G's, PEAK
TEMPERATURE RANGE -40 TO +175 oC
THERMAL COEFFICIENT OF SENSITIVITY 0.03 %/oC
SEAL EPOXY/WELDED
ELECTRICAL
EXCITATION (COMPLIANCE) VOLTAGE, NOM. [4] +4.5 VDC
EXCITATION CURRENT, NOM. 4 .0 mA
OUTPUT IMPEDANCE, NOM. 100 OHMS
OUTPUT BIAS VOLTAGE,. (2.5 NOM.) 1.7 to 3.4 VDC
DISCHARGE TIME CONSTANT 0.25 to 0.80 SEC.
訂貨型號(hào)
3205B
3205M1
相關(guān)型號(hào)
3217A
3243A
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