3225E 高温加速度传感器

产品简介

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

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更新时间：2024-06-26

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详细介绍在线留言

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3225E是一款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，灵敏度1.8pC/g，工作温度高达177℃。

The Dytran 3225E is an ultra miniature teardrop low profile charge mode accelerometer with a sensitivity of 1.8 pC/g designed to mount in spaces inaccessible to other types of accelerometers. The sensor features a height of 0.15 inches (3.8 millimeters) and an overall weight of just 0.6 grams.

The sensors are designed to reliably operate in high temperatures up to +350°F (+177°C) and feature a ceramic shear sensing element in a lightweight laser welded titanium housing, with a three-foot integral cable terminating to a 10-32 jack.

The model 3225E is a member of the Dytran 3225E series of charge mode accelerometers. All units within the series have a sensitivity of 1.8 pC/g and adhesive mounting capabilities. They differ only in terms of their type of connector, environmental seal and electrical isolation.

特性

1. 1.8 pC/g sensitivity

2. 10,000 Hz upper frequency range (±10%)

3. Integral 3-foot cable assembly

4. Adhesive mount

5. 0.6 grams

6. Titanium

7. Ultra miniature teardrop design

8. +350°F (+177°C) operation

9. Charge mode

应用

1. Environmental Stress Screening (ESS)

环境应力筛选

2. Mechanical shock

机械冲击

3. PC board vibration measurements

印刷电路板振动测试

4. Product response testing

产品响应测试

5. General purpose vibration measurements where space is at a premium

通用振动测试

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 PIEZOCERAMIC

PERFORMANCE

SENSITIVITY, ±20% [2] [3] 2.0 pC/G

FREQUENCY RESPONSE, ± 10% [3] to 10,000 Hz

MOUNTED RESONANT FREQUENCY, NOM. 40 kHz

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 350 oF

MAXIMUM SURVIVAL TEMPERATURE +400 oF

THERMAL COEFFICIENT OF SENSITIVITY SEE CHART BELOW

ENVIRONMENTAL SEAL EPOXY

ELECTRICAL

CAPACITANCE INCLUDING ATTACHED 3 FT CABLE 490 pF

INSULATION RESISTANCE @ R.T. 5 X 10 8 MIN. OHMS

OUTPUT SIGNAL POLARITY FOR ACCELERATION TOWARD TOP NEGATIVE GOING

CASE GROUNDING CASE IS GROUNDED

订货型号

3225E 高温型

3225E1 高温型

3225E2 高温型

3225E3 高温型

配件

1. Model 6298 small petro mounting wax, (1) model 6591A installation removal wrench, (1) model 6003A03 cable assembly

2. Model 4110C current source power unit, 4705M series in-line charge amplifier (10-32 jack to BNC jack), 4751B series in-line charge amplifier (10-32 jack to 10-32 jack)

3. 电缆6013A, 6019A

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