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深圳市漢斯福特科技有限公司
深圳市漢斯福特科技有限公司
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更新時間：2024-11-22 11:17:51瀏覽次數(shù)：44次
聯(lián)系我時，請告知來自 環(huán)保在線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(yīng)工作的
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(yīng)工作的。某些晶體在一定方向上受力變形時，其內(nèi)部會產(chǎn)生極化現(xiàn)象，同時在它的兩個表面上產(chǎn)生符號相反的電荷；當(dāng)外力去除后，又重新恢復(fù)到不帶電狀態(tài)，這種現(xiàn)象稱為“壓電效應(yīng)"，具有“壓電效應(yīng)"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(xiàn)代生產(chǎn)生活中被應(yīng)用于許許多多的方面，如手提電腦的硬盤抗摔保護，目前用的數(shù)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(jù)這些振動，自動調(diào)節(jié)相機的聚焦。壓電加速度傳感器還應(yīng)用于汽車安全氣囊、防抱死系統(tǒng)、牽引控制系統(tǒng)等安全性能方面。
美國Dytran的3123A是一款微型加速度傳感器/振動傳感器，適用于振動實驗室，轉(zhuǎn)配電動振動器和控制系統(tǒng)使用。
The Dytran 3123A is a double ended IEPE reference (comparison) accelerometer, offering a convenient means of determining the sensitivity and frequency response characteristics of unknown acceleration, velocity and displacement sensors. A vibration laboratory already equipped with an electrodynamic shaker and control system can easily incorporate use of the model 3123A to accomplish in-house NIST traceable calibrations. Model 3123A offers a 100 mV/g sensitivity, and mounts to a shaker head via a 10-32 tapped hole.
Back-to-back comparisons with a double ended calibration standard accelerometer, such as the Dytran model 3123A, entails mounting the test accelerometer directly to the top mounting surface of the calibration standard (model 3123A) and driving the coupled pair with an electrodynamic shaker system at various frequencies and amplitudes. At each test frequency, the amplitude is set and the corresponding output read from the test accelerometer. To form a complete measurement system, the user will need to supply the cables, power supply unit and electrodynamic shaker system. The model 3123A should be used for low frequency, low g level measurements.
特性
1. 100 mV/g sensitivity
2. 50g range
3. 10 to 5,000 Hz frequency range (±2%)
4. 10-32 radial connector
5. 10-32 tapped holes, top and bottom
6. 100 grams
7. Stainless steel
8. Calibration standard accelerometer
9. IEPE
應(yīng)用
1. Back-to-back accelerometer calibration
連續(xù)加速度校準(zhǔn)
2. Low frequency, low g level measurements
低頻、低g值水平測量
3. NIST traceable calibrations (when used with appropriate electrodynamic shaker, power supply and control system)
NIST可追蹤式標(biāo)定（當(dāng)與電動振動器，電源和控制系統(tǒng)一起使用時）
SYSTEM SPECIFICATIONS VALUE UNITS
SYSTEM SENSITIVITY @ 100 Hz [1] 100.00 ±1.0 mV/G
FREQUENCY RESPONSE, ±2% [1] 10 to 5,000 Hz
LINEARITY ± 1 % F.S.
RANGE F.S. FOR 5 VOLTS OUT ± 500 G
OPERATING FORCE RANGE [2] ± 10 Force-pounds
EQUIVALENT ELECTRICAL NOISE, (BROADBAND) .003 G, RMS
OUTPUT IMPEDANCE 2 Ohms
ACCELEROMETER MODEL 3123A SPECIFICATIONS
SENSITIVITY, ±5% 100 mV/G
DISCHARGE TIME CONSTANT 0.5 to 1.5 Sec
COEFFICIENT OF THERMAL SENSITIVITY .03 %/°F
TEMPERATURE RANGE -60 to +200 °F
TRANSVERSE SENSITIVITY, MAX 3 %
ELECTRICAL CONNECTOR, RADIAL 10-32 COAXIAL Jack
MOUNTING HOLES, TOP & BOTTOM 10-32 UNF-2B
MAXIMUM SHOCK 3000 G
MATERIAL (NON-MAGNETIC) 300 SERIES STAINLESS STEEL
BIAS VOLTAGE +7.5 to +9.5 VDC
SUPPLY CURRENT (CONSTANT CURRENT) 2 mA
COMPLIANCE VOLTAGE +20 VDC
WEIGHT 3.5/100 oz/grams
AMPLIFIER/POWER UNIT 4119B SPECIFICATIONS
SENSOR SUPPLY CURRENT/VOLTAGE, STD 2/+20 mA/VDC
FILTER, LOW PASS, ACTIVE VCVS 12 db/octave
SENSOR/OUTPUT CONNECTOR BNC/BNC Coaxial jack
INPUT POWER, STD MODEL, 115 VAC 2.4 VA
INPUT POWER, 'E' MODEL, 230 VAC 2.4 VA
POWER CORD, STD 6 FT 3-WIRE W/CHASSIS GND
WEIGHT 32/900 oz/grams
SIZE (H x W x D) [3] 5.5 x 1.6 x 8.0 Inches
(H x W x D) [3] 140 x 41 x 203 mm
TEMPERATURE RANGE 0 to +120 ° F
訂貨型號
3123A
配件
Supplied Accessories: (1) model 6200 mounting stud (10-32 to 10-32)
Recommended Accessories: model 4010C current source power unit, model 6213 adhesive mounting base
Compatible Cables: 6010A, 6011A, 6012A, 6016A, 6018A, 6022A, 6026A, 6032A, 6033A, 6049A, 6050A, 6051A, 6053A, 6054A, 6066A, 6069A, 6093A, 6099A, 6400A, 6401A, 6412A, 6429A, 6924A, 6930A, 6991A
相關(guān)型號
3120B
3128A
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