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3403A是一款小型三軸加速度傳感器/振動傳感器，壓電式工作原理，重4g，自帶M4.5 x 0.35接頭，集成石英剪切感應元件。
The Dytran 3403A is a miniature triaxial accelerometer that weighs just 4 grams and has a vertical height of 0.32 inches (8.0 millimeters).
The distinguishing characteristic of the model 3403A is its exclusive, Dytran designed 4-pin radial connector. Compared to the industry standard connector (1/4-28 thread size), the model 3403A 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 small size of the accelerometer.
Available with a sensitivity of 10 mV/g, the Dytran model 3403A 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 and case isolated to avoid EMI/ground loop interference.
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. 4 grams
7. Titanium
8. Hermetic
9. Case isolated
10. Miniature design
11. Triaxial
12. IEPE
應用
1. Modal and structural analysis
模態與結構分析
2. Noise, Vibration and Harshness (NVH)
噪音，振動和不平順性
3. Squeak & Rattle
4. Vibration control
振動控制
5. General purpose triaxial vibration measurements
一般用途三軸振動測量
Weight, Max 0.14 oz 4.0 grams
Connector [1] 4-pin 4-pin
Material, Housing / Connector Titanium Titanium
Sensitivity, -10 + 15% [2] 10 mV/g 1.02 mV/m/s^2
Range F.S. (each axis) ±500 g ± 4905 m/s^2
Frequency Response, -5 /+15% 1.2 to 10000 Hz 1.2 to 10000 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 ? 100 ?
Output Bias Voltage 7.5 to 9.5 VDC 7.5 to 9.5 VDC
Discharge Time Constant 0.3 to 0.5 sec 0.3 to 0.5 sec
Ground Isolation [7] Case Isolated Case Isolated
ENVIRONMENTAL
Maximum 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
3403A
相關型號
3313A1
3333A1
3023A1
