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深圳市漢斯福特科技有限公司
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更新時(shí)間：2024-11-22 09:24:06瀏覽次數(shù)：77次
聯(lián)系我時(shí)，請(qǐng)告知來(lái)自 環(huán)保在線(xiàn)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
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3218C是一款高溫型加速度傳感器/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)，用于廣，可靠性好，工作溫度高達(dá)482℃。
The Dytran 3218C is a high temperature piezoelectric differential output accelerometer offering extreme measurement stability and reliable surface vibration measurement capabilities over a wide temperature range of up to +900°F (+482°C).
The highly rugged design of the Dytran model 3218C incorporates the use of ultra stable quartz material within its self-generating seismic element. Sensing elements are housed in a hermetically sealed, case isolated, stainless steel construction, and are packaged with an integral two-foot hardline cable assembly with glass-to-metal sealed connector.
Industry standard tri-bolt mounting is achieved via use of three factory supplied 8-32 x 1.5-inch long socket head cap screws.
特性
1. 1.6 pC/g sensitivity
2. 10,000 Hz upper frequency range (±10%)
3. Integral 2-foot hardline cable assembly to D38999 output connector
4. Tri-bolt mount
5. 157 grams
6. Stainless steel
7. Hermetic
8. Case isolated
9. +900°F (+482°C)
10. Differential output
11. Charge mode
應(yīng)用
1. Turbine vibration monitoring
渦輪發(fā)動(dòng)機(jī)振動(dòng)監(jiān)測(cè)
2. General purpose high temperature vibration monitoring
高溫振動(dòng)監(jiān)測(cè)
Weight Accelerometer 5.5 oz 157 grams
Accelerometer and cable 6.83 oz 195 grams
Size, (Mounting dia x Height x Length) Height 0.77 inches 19.43 mm
Mounting dia ?1.19 inches ?30.20 mm
Length 18.10 - 18.60 inches 459.70 - 472.40 mm
Connector [1] Material 304 L 304 L
Type 3 Pin 3 Pin
Housing Material 304 L 304 L
Isolation Pins to Housing 10GΩ MIN 10GΩ MIN
Sensing Element Material LGT LGT
Sensitivity [2] 1.6 pC/g 0.16 pC/m/s
Acceleration Range [3] g peak [3] m/s2 peak
Frequency Range, ±10% [4] -10,000 Hz [4] -10,000 Hz
Resonance Frequency > 35 kHz > 35 kHz
TYPICAL TEMPERATURE RESPONSE
Transverse Sensitivity 5 % 5 %
Insulation Resistance (75?F) 10 GΩ 10 GΩ
Insulation Resistance (400?F) 10 GΩ 10 GΩ
Insulation Resistance (700?F) 3.5 MΩ 3.5 MΩ
Insulation Resistance (900?F) 485 kΩ 485 kΩ
Operating Temperature -60 to 900 °F -51 to 482 °С
Capacitance, pin to pin 80 pF 80 pF
Unbalance between pins <2 pF <2 pF
Linearity 1 % 1 %
ENVIRONMENTAL
Maximum Vibration 1000 Gpeak 9810 m/s2 peak
Maximum Shock 2000 Gpeak 19620 m/s2 peak
Seal Hermetic Hermetic
Magnetic Sensitivity at 100 Gauss 0.00007 g/Gauss 0.00069 m/s2 Gauss
Base Strain Sensitivity 0.05 g/μ? 0.4905 m/s2/μ?
訂貨型號(hào)
3218C
配件
Model 6535 mounting screws (8-32)
相關(guān)型號(hào)
3256C
3310A
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