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压电式加速度传感器，又称振动传感器，是基于压电晶体的压电效应工作的。某些晶体在一定方向上受力变形时，其内部会产生极化现象，同时在它的两个表面上产生符号相反的电荷；当外力去除后，又重新恢复到不带电状态，这种现象称为“压电效应”，具有“压电效应”的晶体称为压电晶体。常用的压电晶体有石英、压电陶瓷等，在现代生产生活中被应用于许许多多的方面，如手提电脑的硬盘抗摔保护，目前用的数码相机和摄像机里，也有加速度传感器，用来检测拍摄时候的手部的振动，并根据这些振动，自动调节相机的聚焦。压电加速度传感器还应用于汽车安全气囊、防抱死系统、牵引控制系统等安全性能方面。
美国Dytran的3035C是一款压电式高温型加速度传感器/振动传感器，具有体积小，结构坚固，高密封，耐高温等特点，重2.5g，不锈钢结构，工作温度高达204摄氏度。
The Dytran 3035C is a piezoelectric charge mode accelerometer with sensitivity of 2.5 pC/g, and is ideal for high temperature applications where vertical space is limited. This miniature sensor has a height of just 0.33 inches (8.4 millimeters) and weighs just 2.5 grams, making it ideal for use in applications where mass loading is a concern. In addition, the Dytran model 3035C features a hermetically sealed, stainless steel construction and a 5-44 radial connector.
This sensor is part of Dytran's 3035C series of charge mode accelerometers, which differ only in their type of mounting configuration. Model 3035C features a 5-40 stud mount, while model 3035CG utilizes adhesive mounting capabilities.
特性
1. 2.5 pC/g sensitivity
2. 15,000 Hz upper frequency range (±15%)
3. 5-44 radial connector
4. 5-40 stud mount
5. 2.5 grams
6. Stainless steel
7. Hermetic
8. +400°F (+204°C) operation
9. Miniature
10. Charge mode
应用
1. Environmental Stress Screening (ESS)
环境应力筛选
2. Product response
产品响应
3. Structural testing of small objects
小产品的结构检验
4. High temperature vibration monitoring applications where vertical space is limited
高温振动监测应用
参数
Weight, Max. 0.09 oz 2.5 grams Notes:
Connector 5-44 Coaxial 5-44 Coaxial
Sensitivity, ±10% [1] 2.5 pC/g 0.3 mV/m/s2
Range for ± 5 Volts Output ±500 g ±4905 m/s2
Frequency Response, ±10% 0.5 to 10000 Hz 0.5 to 10000 Hz
Resonant Frequency > 45 kHz > 45 kHz
Linearity [2] ±1 % F.S. ±1 % F.S.
Maximum Transverse sensitivity 5 % 5 %
Strain Sensitivity @ 250με 0.002 g/με 0.02 m/s2/με
ENVIRONMENTAL
Maximum Vibration 600 Gpeak 5884 m/s2 peak
Maximum Shock 10000 Gpeak 98067 m/s2 peak
Temperature Range -100 to +400 °F -73 to +204 °C
Seal Hermetic Hermetic
Electrical Isolation Case Grounded GΩ,min Case Grounded GΩ,min
订货型号
3035C
配件
1. 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)
2. 电缆线：6025A, 6056A
相关型号
3035CG
