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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3056C是一款高溫型壓電式加速度傳感器/振動(dòng)傳感器,具有體積小,結(jié)構(gòu)堅(jiān)固,高密封,耐高溫等特點(diǎn),鈦合金外殼,工作溫度高達(dá)190攝氏度。
The Dytran 3056C is a single axis piezoelectric charge mode accelerometer with wide bandwidth, designed to provide cost effective general purpose vibration monitoring in temperatures up to +375°F (+190°C).
Offered with a sensitivity of 15 pC/g, the model 3056C features a lightweight, robust, hermetically sealed titanium housing with a 10-32 axial connector and 10-32 mounting hole, allowing units to be utilized in a variety of application environments. The Dytran model 3056C weighs 10 grams and is base isolated to avoid EMI/ground loop interference.
特性
1. 15 pC/g sensitivity
2. 5,000 Hz upper frequency range (±5%)
3. 10-32 axial connector
4. 10-32 tapped hole
5. 10 grams
6. Titanium
7. Hermetic
8. Base isolated
9. +375°F (+190°C) operation
10. Charge mode
應(yīng)用
1. Modal and structural analysis
模態(tài)與結(jié)構(gòu)分析
2. Vibration control
振動(dòng)控制
3. General purpose high temperature vibration monitoring
通用高溫振動(dòng)監(jiān)控
Weight 0.35 oz 10.0 grams
Sensitivity, ± 15% [2] 15 pC/g 1.53 pC/m/s2
Frequency Range [5] 5000 Hz
Resonance Frequency 32 kHz 32 kHz Time Constants
Linearity [4] ±1 % ±1 %
Transverse Sensitivity Max 5 % 5 % -100 -4
Shock Max 3000 g pk 29430 m/s2 Vibration Max 600 g pk 5886 m/s2
Operating Temperature -60 to +375 °F -51 to +190 °C
Seal Hermetic Hermetic
Coefficient of Thermal Sensitivity 0.06 %/°F 0.11 %/°C
ELECTRICAL
Capacitance, nom 975 pF 975 pF
Electrical Isolation 10 GΩ, min 10 GΩ, min
訂貨型號(hào)
3056C
配件
1. Model 6200 mounting stud (10-32 to 10-32)
2. Model 4110C current source power unit, 4705A series in-line charge amplifier (BNC jack to BNC jack), 4751B series in-line charge amplifier (10-32 jack to 10-32 jack)
3. 電纜線:6002A, 6013A, 6019A, 6036A, 6037A, 6049A, 6057A, 6097A, 6411A, 6417A, 6419A, 6924A, 6991A
相關(guān)型號(hào)
3056D1(通用型)
3056D2(通用型)
3056D3(通用型)
3056D4(通用型)
3056D5(通用型)
3056D6(通用型)
3056D7(通用型)
3056D8(通用型)
3056D1T(通用型TEDS)
3056D2T(通用型TEDS)
3056D3T(通用型TEDS)
3056D4T(通用型TEDS)
3056D5T(通用型TEDS)
3056D6T(通用型TEDS)
3056D7T(通用型TEDS)
3056D8T(通用型TEDS)
3056B1(通用型)
3056B2(通用型)
3056B3(通用型)
3056B4(通用型)
3056B5(通用型)
3056B6(通用型)
3056B1T(通用型TEDS)
3056B2T(通用型TEDS)
3056B3T(通用型TEDS)
3056B4T(通用型TEDS)
3056B5T(通用型TEDS)
3056B6T(通用型TEDS)
3056M9(通用型)
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