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3225F是一款超小型IEPE加速度传感器/振动传感器,灵敏度10mv/g,重量仅为0.6g。
The Dytran model 3225F is an ultra miniature teardrop low profile IEPE accelerometer with a sensitivity of 10 mV/g, designed to adhesively mount in spaces typically inaccessible to other types of accelerometers. The sensor has an overall height of 0.16-inches (4.1-millimeters) and weighs just 0.6 grams.
Featuring a quartz shear sensing element in a lightweight titanium housing, the model 3225F utilizes an integral 3-foot (0.9-meter) cable terminating to a 10-32 jack.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 1.6 to 10,000 Hz (±10%)
4. 3-foot (0.9-meter) integral cable
5. Adhesive mount
6. 0.6 grams
7. Titanium
8. Ultra miniature teardrop design
9. IEPE
应用
1. Environmental Stress Screening (ESS)
环境应力筛选
2. Mechanical shock
机械冲击试验
3. PC board vibration measurements
印刷电路板振动检测
4. Product response testing
产品响应试验
5. General purpose vibration measurements where space is at a premium
受限空间内的通用振动测量
WEIGHT 0.6 GRAMS
SIZE (DIA x LENGTH HEX x HEIGHT) 0.25 x 0.36 x .150 INCHES
MOUNTING PROVISION FLAT MOUNTING SURFACE FOR ADHESIVE MOUNT
CONNECTOR, COAXIAL 10-32 JACK AT END OF FIXED 3 FT. CABLE
CASE MATERIAL TITANIUM
SENSING ELEMENT PLANAR SHEAR QUARTZ
PERFORMANCE
SENSITIVITY, ± 10% [1] [2] 10.0 mV/G
RANGE F.S. 500 G's
FREQUENCY RESPONSE, ± 10 % [3] 1.6 to 10,000 Hz
MOUNTED RESONANT FREQUENCY, NOM. 40 kHz
EQUIVALENT ELECTRICAL NOISE FLOOR .007 G’s RMS
AMPLITUDE NON-LINEARITY (ZERO BASED BEST FIT ST.LINE METHOD) 2.0 % F.S., MAX.
TRANSVERSE SENSITIVITY, MAX. 5 PERCENT
STRAIN SENSITIVITY .0005 G's PER MICROSTRAIN @ 250/
ENVIRONMENTAL
MAXIMUM VIBRATION 400 G's, RMS
MAXIMUM SHOCK 5000 G's, PEAK
TEMPERATURE RANGE -60 TO 250 oF
THERMAL COEFFICIENT OF SENSITIVITY .03 %.°F
ENVIRONMENTAL SEAL EPOXY
ELECTRICAL
SUPPLY CURRENT/COMPLIANCE VOLTAGE RANGE [3] 2 to 20/+18 to +30 mA/Volts
OUTPUT IMPEDANCE, TYP. 100 Ohms
BIAS VOLTAGE +7 to +10 VDC
订货型号
3225F 超小型
3225F1 超小型
3225F2 超小型
3225F3 超小型
3225F4 超小型
3225F5 超小型
3225F6 超小型
3225F7 超小型
3225F1T 超小型TEDS
3225F2T 超小型TEDS
3225F3T 超小型TEDS
3225F4T 超小型TEDS
3225F5T 超小型TEDS
3225F6T 超小型TEDS
配件
1. Model 6298 Petro mounting wax, (1) model 6591A installation/removal wrench
2. Model 4110C current source power unit, model 6273 petro mounting wax
3. 电缆:6011A
相关型号
3225E 高温型
3225E1 高温型
3225E2 高温型
3225E3 高温型
3225M5 高温型
3225M7 高温型
3225M23 高温型
3225M23T 高温型TEDS
3225M24T 高温型TEDS
3225M34 高温型TEDS
3225M36 高温型
3225M37 高温型
3225M39 高温型
3225M40 高温型
产品分类
PRODUCT CLASSIFICATION相关文章
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