3225E 高溫加速度傳感器

產品簡介

壓電式加速度傳感器，又稱振動傳感器，是基于壓電晶體的壓電效應工作的

產品型號：

更新時間：2024-06-26

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壓電式加速度傳感器，又稱振動傳感器，是基于壓電晶體的壓電效應工作的。某些晶體在一定方向上受力變形時，其內部會產生極化現象，同時在它的兩個表面上產生符號相反的電荷；當外力去除后，又重新恢復到不帶電狀態，這種現象稱為“壓電效應"，具有“壓電效應"的晶體稱為壓電晶體。常用的壓電晶體有石英、壓電陶瓷等，在現代生產生活中被應用于許許多多的方面，如手提電腦的硬盤抗摔保護，目前用的數碼相機和攝像機里，也有加速度傳感器，用來檢測拍攝時候的手部的振動，并根據這些振動，自動調節相機的聚焦。壓電加速度傳感器還應用于汽車安全氣囊、防抱死系統、牽引控制系統等安全性能方面。

美國Dytran的3225E是一款高溫型加速度傳感器/振動傳感器，具有體積小、結構堅固，高密封、耐高溫等特點，靈敏度1.8pC/g，工作溫度高達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

應用

1. Environmental Stress Screening (ESS)

環境應力篩選

2. Mechanical shock

機械沖擊

3. PC board vibration measurements

印刷電路板振動測試

4. Product response testing

產品響應測試

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

通用振動測試

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

訂貨型號

3225E 高溫型

3225E1 高溫型

3225E2 高溫型

3225E3 高溫型

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. 電纜6013A, 6019A

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