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13352927502
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13352927502
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產(chǎn)品簡(jiǎn)介
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3220E是一款高頻IEPE加速度傳感器/振動(dòng)傳感器，靈敏度10mv/g，重量?jī)H為2.7g。
The Dytran 3220E is a low profile, high frequency ring shaped IEPE accelerometer with a 10 mV/g sensitivity and an overall weight of just 2.7 grams.
Featuring a quartz shear sensing element encased in a lightweight titanium housing, electrical connection for the Dytran model 3220E is achieved via a specially designed coaxial glass-to-metal sealed 5-44 connector, which can be positioned in any desired radial direction. The model 3220E also features a miniature thru hole mounting configuration, allowing the sensor to be turned 360° prior to securing for ease of installation. Units are hermetically sealed for reliable operation in high humidity and dirty environments, as well as base isolated to avoid EMI/ground loop interference.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 1 to 5,000 Hz (±5%)
4. 5-44 radial connector
5. ?.09-inch (2.36-millimeter) thru hole mount
6. 2.7 grams
7. Titanium
8. Hermetic
9. Base isolated
10. 360° cable orientation
11. IEPE
應(yīng)用
1. Environmental Stress Screening (ESS)
環(huán)境應(yīng)力篩選
2. Vibration control
振動(dòng)控制
3. General purpose vibration measurements in space constrained environments
受限空間內(nèi)的振動(dòng)監(jiān)測(cè)
WEIGHT 2.7 Grams
SIZE, DIA X HEIGHT (SEE DWG 127-3220E) .41 X .25 IN
MOUNTING PROVISION THRU HOLE FOR #2 MOUNTING SCREW
MOUNTING SCREW, INSULATED (SUPPLIED) 2-56 X .437 LONG SS
CONNECTOR, RADIALLY MOUNTED 5-44 COAXIAL
MATERIAL, BASE, CAP & CONNECTOR TITANIUM ALLOY
ELEMENT TYPE QUARTZ, PLANAR SHEAR
PERFORMANCE
SENSITIVITY, ± 10% [1] 10 mV/G
RANGE F.S. FOR ± 5 VOLTS OUTPUT ± 500 G's
FREQUENCY RESPONSE, ± 5% 1 to 5,000 Hz
± 15% .66 to 10,000 Hz
NATURAL FREQUENCY, MOUNTED. >33 kHz
LINEARITY 1 %FS
TRANSVERSE SENSITIVITY, MAX. 5 %
STRAIN SENSITIVITY .03 G’s/??? @ 250 ??
RESOLUTION (EQUIVALENT ELECTRICAL NOISE) 0.007 G’s RMS
ENVIRONMENTAL
MAXIMUM VIBRATION/SHOCK 1500/2000 ± G's/G's PEAK
TEMPERATURE RANGE -60 to +250 oF
SEAL, HERMETIC [4] Glass-to-metal and TIG welded
COEFFICIENT OF THERMAL SENSITIVITY %/ F
ELECTRICAL
SUPPLY CURRENT/COMPLIANCE VOLTAGE RANGE [3] 2 to 20/+18 to +30 mA/Volts
OUTPUT IMPEDANCE, TYP. 100 Ohms
DISCHARGE TIME CONSTANT 0.8 to 2.0 Sec
OUTPUT BIAS VOLTAGE 9 to 11.5 VDC
OUTPUT SIGNAL POLARITY FOR ACCELERATION TOWARD TOP Positive
ELECTRICAL ISOLATION, CASE GROUND TO MOUNTING SURFACE 10 Gigaohms, min.
訂貨型號(hào)
3220E 超小型
3220M27 超小型
配件
1. Model 6165 mounting screw (2-56)
2. Model 4110C current source power unit, model 6167 adhesive mounting base
3. 電纜線：6014A, 6017A, 6021A, 6024A, 6025A, 6028A, 6029A, 6040A, 6056A, 6092A
相關(guān)型號(hào)
3220C1 高溫型
3220C 高溫型
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