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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3143M16是一款微型三轴加速度传感器/振动传感器，压电式工作原理，可在低温至-196摄氏度环境下连续工作，满足低温振动试验的需要。
The Dytran 3143M16 is a triaxial IEPE accelerometer with continuous operation to -320°F (-196°C), expressly designed to support cryogenic vibration testing requirements.
Offered with a sensitivity of 10 mV/g, the design of model 3143M16 incorporates a 4-pin 3/8-28 Glenair radial connector and 6-32 thru hole mounting capabilities. Even at extreme temperatures the model 314316 displays an extreme stable and continuous signal output. Units are hermetically sealed for reliable operation in high humidity and dirty environments.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 1.6 to 5,000 Hz frequency range (±5%)
4. 4-pin 3/8-28 Glenair radial connector
5. 6-32 thru hole mount
6. 50 grams
7. Stainless steel
8. Hermetic
9. Case isolated
10. -320°F (-196°C) operation
11. IEPE
应用
1. Cryogenic pump vibration measurements
低温泵振动测量
2. Cryogenic industrial monitoring
低温工业监测
3. Rocket engine vibration test stands
火箭发动机振动测试台
Weight, Max. 1.75 oz 50 grams Notes:
Connector [1] Type 4 - PIN 4 - PIN
Mounting Provision Thru Hole 6-32 Mounting Screw 6-32 Mounting Screw
Material, Housing/Connector 300 Series S.S. 300 Series S.S.
Sensing Element Quartz Quartz
Element Style Planar Shear Planar Shear
Sensitivity, ±5% [2] 10 mV/g 1 mV/m/s2
Range for ± 5 Volts Output ±500 g peak ±4905 m/s2
Frequency Response, ±5% 1.6 to 5000 Hz 1.6 to 5000 Hz
Resonant Frequency > 25 kHz > 25 kHz
Broad Band Resolution 0.007 g rms 0.069 m/s2 rms
Linearity [2] ± 1 % F.S. ± 1 % F.S.
Maximum Transverse sensitivity 6 % 6%
Strain Sensitivity @ 250µε 0 012 g/με 0 12 m/s2/µε
Strain Sensitivity @ 250µε 0.012 g/με 0.12 m/s /µε
ENVIRONMENTAL
Maximum Vibration 600 g peak 5886 m/s2 peak
Maximum Shock 3000 g peak 29430 m/s2 peak
Operating Temperature Range -320 to +250 °F -196 to 121 °C
Coefficient of Thermal Sensitivity 0.03 %/°F 0.05 %/°C
Seal HERMETIC HERMETIC
ELECTRICAL
Supply Current Range [3] 2 to 20 mA 2 to 20 mA
Compliance Voltage Range +18 to +30 Volts +18 to +30 Volts
Output Impedence,Typ 100 Ω 100 Ω
Bias Voltage +7 to +9 VDC +7 to +9 VDC
Discharge Time Constant 0.3 to 1.0 Sec 0.3 to 1.0 Sec
Electrical Isolation 10 GΩ,min 10 GΩ,min
订货型号
3143M16
配件
Supplied Accessories: (1) model 6247 mounting screw (6-32)
Compatible Cables: 6380AXX and 6381AXX
相关型号
3003B
