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5443 高溫加速度傳感器
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壓電式加速度傳感器,又稱(chēng)振動(dòng)傳感器,是基于壓電晶體的壓電效應(yīng)工作的

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更新時(shí)間:2024-06-26
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壓電式加速度傳感器,又稱(chēng)振動(dòng)傳感器,是基于壓電晶體的壓電效應(yīng)工作的。某些晶體在一定方向上受力變形時(shí),其內(nèi)部會(huì)產(chǎn)生極化現(xiàn)象,同時(shí)在它的兩個(gè)表面上產(chǎn)生符號(hào)相反的電荷;當(dāng)外力去除后,又重新恢復(fù)到不帶電狀態(tài),這種現(xiàn)象稱(chēng)為“壓電效應(yīng)",具有“壓電效應(yīng)"的晶體稱(chēng)為壓電晶體。常用的壓電晶體有石英、壓電陶瓷等,在現(xiàn)代生產(chǎn)生活中被應(yīng)用于許許多多的方面,如手提電腦的硬盤(pán)抗摔保護(hù),目前用的數(shù)碼相機(jī)和攝像機(jī)里,也有加速度傳感器,用來(lái)檢測(cè)拍攝時(shí)候的手部的振動(dòng),并根據(jù)這些振動(dòng),自動(dòng)調(diào)節(jié)相機(jī)的聚焦。壓電加速度傳感器還應(yīng)用于汽車(chē)安全氣囊、防抱死系統(tǒng)、牽引控制系統(tǒng)等安全性能方面。

 

美國(guó)Dytran的5334是一個(gè)混合振動(dòng)監(jiān)測(cè)系統(tǒng),由加速度傳感器,放大器和2線(xiàn)(IEPE)電源單元組成,工作溫度高達(dá)482℃。

The Dytran 5334 is a high temperature hybrid vibration monitoring system, consisting of a charge mode accelerometer and in-line miniature differential charge amplifier operating from a constant current 2-wire (IEPE) power unit, permanently joined together as a single unit with an interconnecting integral hardline cable.

 

The unique configuration of the Dytran model 5334 is known as a hybrid system because it combines both IEPE and charge mode piezoelectric technologies into a single operating unit. The accelerometer is connected to the input of the charge amplifier via an 18-inch long hardline cable (SiO2 insulated) which is unaffected by high temperatures at the point of measurement.

 

The model 5334 features a case isolated design to avoid EMI/ground loop interference, with hermetic sealing for reliable operation in high humidity and dirty environments. Units offer an industry standard tri-bolt mount, stainless steel construction, and incorporate the use of ultra high temperature piezoelectric crystals in compression mode for extremely stable operation at temperatures up to +900°F (+482°C).


特性

1.   10 mV/g sensitivity

2.   500g range

3.   4.8 to 660 frequency range (±5%)

4.   18-inch integral hardline cable assembly

5.   Tri-bolt mount

6.   150 grams

7.   Stainless steel

8.   Hermetic

9.   Case isolated

10.  Integrated differential amplifier

11.  Uniquely combines IEPE and charge output technology, seamlessly operating as a single unit

12.  +900°F (+482°C) operation

13.  IEPE

 

應(yīng)用

1.   High temperature industrial vibration monitoring

  高溫工業(yè)振動(dòng)監(jiān)測(cè)

2.   High temperature turbine vibration measurements

  高溫渦輪振動(dòng)測(cè)試

3.   General purpose high temperature monitoring

  通用高溫監(jiān)測(cè)


WEIGHT, including cables, accel and amplifier 150 grams

MOUNTING PROVISION Three-hole flange for #8 SCREWS

CABLE FROM ACCEL. TO CHG. AMP., (18 in LENGTH) 2-conductor shielded hardline cable

CONNECTOR FROM CHARGE AMPLIFIER D38999/25YA98PA

MATERIAL, ACCELEROMETER 304L CRES

PERFORMANCE (SYSTEM)

SENSITIVITY, ±5% [1] 10 mV/g

RANGE F.S. FOR ± 5 VOLTS OUTPUT ± 500 g

FREQUENCY RANGE, ± 5% 4.8 to 660 Hz

FREQUENCY RANGE, -3db 1.6 to 2000 Hz

RESONANT FREQUENCY, NOM. 35 kHz

EQUIVALENT ELECTRICAL NOISE FLOOR .01 grms

LINEARITY [2] ± 2% % F.S.

TRANSVERSE SENSITIVITY, MAX. 5 %

STRAIN SENSITIVITY @ 250 με .012 g/με

ENVIRONMENTAL

MAXIMUM VIBRATION ±600 gpk

MAXIMUM SHOCK ±2000 gpk

TEMPERATURE RANGE (ACCELEROMETER) -65 to +900 °F

TEMPERATURE RANGE (CHARGE AMPLIFIER) -50 TO +185 °F

SEAL, (ACCELEROMETER & CHG. AMP) HERMETIC Ceramic-to-metal and laser welded

COEFFICIENT OF THERMAL SENSITIVITY .02 %/oC

ELECTRICAL

SUPPLY CURRENT RANGE [3] 4 to 20 mA

COMPLIANCE VOLTAGE RANGE 15 to 30 Volts

OUTPUT IMPEDANCE, TYP. 100 Ohms

BIAS VOLTAGE, +8 VOLTS NOM. +7 to +9 VDC

DISCHARGE TIME CONSTANT, NOM. 0.1 Sec

OUTPUT SIGNAL POLARITY FOR ACCELERATION TOWARD TOP Positive

ELECTRICAL ISOLATION, GROUND WIRE TO CASE 10 Megohms, min.


訂貨型號(hào)

5443 振動(dòng)監(jiān)測(cè)系統(tǒng)

 

配件

Model 6535 mounting screws (8-32)

相關(guān)型號(hào)

5334

5335


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