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加速度傳感器中有一種是三軸加速度傳感器，同樣的它是基于加速度的基本原理去實現工作的，加速度是個空間矢量，一方面，要準確了解物體的運動狀態，必須測得其三個坐標軸上的分量；另一方面，在預先不知道物體運動方向的場合下，只有應用三軸加速度傳感器來檢測加速度信號。由于三軸加速度傳感器也是基于重力原理的，因此用三軸加速度傳感器可以實現雙軸正負90度或雙軸0-360度的傾角，通過校正后期精度要高于雙軸加速度傳感器大于測量角度為60度的情況。三軸加速度傳感器的好處就是在預先不知道物體運動方向的場合下，只有應用三維加速度傳感器來檢測加速度信號。三維加速度傳感器具有體積小和重量輕特點，可以測量空間加速度，能夠全面準確反映物體的運動性質。
美國Dytran的3343A是一款IEPE三軸加速度傳感器/振動傳感器，壓電式工作原理，重2.4g，自帶M4.5 x 0.35接頭，集成石英剪切感應元件。
The Dytran 3343A is a miniature triaxial IEPE accelerometer that weighs just 2.4 grams and has a vertical height of 0.29 inches (7.2 millimeters).
The distinguishing characteristic of the model 3343A is its exclusive, Dytran designed 4-pin radial connector. Compared to the industry standard (1/4-28 thread size), the model 3343A incorporates a M4.5 x 0.35 connector that is approximately 20% smaller in size. This substantial size difference allows for a more flexible, lightweight cable, a smaller diameter for the connector, and also contributes to the overall smaller size of the accelerometer.
Available with a sensitivity of 10 mV/g, the Dytran model 3343A features quartz shear sensing elements packaged in a robust laser welded titanium housing with adhesive mounting capabilities. Units are hermetically sealed for reliable operation in high humidity and dirty environments.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 1.2 to 5,000 Hz frequency range (+15/-5%)
4. 4-pin M4.5 x 0.35 radial connector
5. Adhesive mount
6. 2.4 grams
7. Titanium
8. Hermetic
9. Miniature design
10. Triaxial
11. IEPE
應用
1. Environmental Stress Screening (ESS)
環境應力篩選
2. Modal and structural analysis
模態與結構分析
3. General purpose triaxial vibration measurements
一般用途三軸振動測量
Weight 0.084 oz 2.4 grams
Mounting Adhesive Measured At 100 Hz, 1 Grms per ISA RP 37.2
Connector [1] 4-pin 4-pin
Material, Housing / Connector Titanium Titanium
Sensitivity, -10 + 15%
Range F.S.±500 g
Frequency Response, ±5% 1.2 to 5000 Hz 1.2 to 5000 Hz
Element Natural Frequency 30 kHz 30 kHz
Equivalent Electrical Noise 0.007 grms 0.069 m/s^2 rms
Linearity [3] 1 %F.S. 1 %F.S.
Transverse Sensitivity Max 6 % 6 %
Signal Polarity [6] [6]
ELECTRICAL
Supply Current Range [4] 2 to 20 mA 2 to 20 mA
Compliance Voltage Range +18 to +30 VDC +18 to +30 VDC
Output Impedance, Typ. 100 Ω 100 Ω
Output Bias Voltage 7.0 to 9.0 VDC 7.0 to 9.0 VDC
Discharge Time Constant 0.3 to 1.0 sec 0.3 to 1.0 sec
Ground Isolation Case Ground Case Ground
ENVIRONMENTAL
Maximun Shock 5000 g pk 49050 m/s^2
Maximum Vibration 600 g pk 5880 m/s^2
Temperature Range -60 to +250 °F -51 to +121 °C
Environmental Seal Hermetic Hermetic
配件
Recommended Accessories: model 4114B1 current source power unit, model 6273 petro mounting wax
Compatible Cables: 6893A, 6895A, 6948A, 6949A, 6975A
訂貨型號
3343A
3343A2
3343A3
相關型號
3313A1
3333A1
3403A
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