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加速度传感器中有一种是三轴加速度传感器，同样的它是基于加速度的基本原理去实现工作的，加速度是个空间矢量，一方面，要准确了解物体的运动状态，必须测得其三个坐标轴上的分量；另一方面，在预先不知道物体运动方向的场合下，只有应用三轴加速度传感器来检测加速度信号。由于三轴加速度传感器也是基于重力原理的，因此用三轴加速度传感器可以实现双轴正负90度或双轴0-360度的倾角，通过校正后期精度要高于双轴加速度传感器大于测量角度为60度的情况。三轴加速度传感器的好处就是在预先不知道物体运动方向的场合下，只有应用三维加速度传感器来检测加速度信号。三维加速度传感器具有体积小和重量轻特点，可以测量空间加速度，能够全面准确反映物体的运动性质。
美国Dytran的3343A是一款IEPE三轴加速度传感器/振动传感器，压电式工作原理，重2.4g，自带M4.5 x 0.35接头，集成石英剪切感应元件。
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
应用
1. Environmental Stress Screening (ESS)
环境应力筛选
2. Modal and structural analysis
模态与结构分析
3. General purpose triaxial vibration measurements
一般用途三轴振动测量
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
订货型号
3343A
3343A2
3343A3
