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(shí)現(xiàn)工作的，加速度是個(gè)空間矢量，一方面，要準(zhǔn)確了解物體的運(yùn)動(dòng)狀態(tài)，必須測(cè)得其三個(gè)坐標(biāo)軸上的分量；另一方面，在預(yù)先不知道物體運(yùn)動(dòng)方向的場(chǎng)合下，只有應(yīng)用三軸加速度傳感器來檢測(cè)加速度信號(hào)。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(shí)現(xiàn)雙軸正負(fù)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(cè)量角度為60度的情況。三軸加速度傳感器的好處就是在預(yù)先不知道物體運(yùn)動(dòng)方向的場(chǎng)合下，只有應(yīng)用三維加速度傳感器來檢測(cè)加速度信號(hào)。三維加速度傳感器具有體積小和重量輕特點(diǎn)，可以測(cè)量空間加速度，能夠全面準(zhǔn)確反映物體的運(yùn)動(dòng)性質(zhì)。
美國Dytran的3143M16是一款微型三軸加速度傳感器/振動(dòng)傳感器，壓電式工作原理，可在低溫至-196攝氏度環(huán)境下連續(xù)工作，滿足低溫振動(dòng)試驗(yàn)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
應(yīng)用
1. Cryogenic pump vibration measurements
低溫泵振動(dòng)測(cè)量
2. Cryogenic industrial monitoring
低溫工業(yè)監(jiān)測(cè)
3. Rocket engine vibration test stands
火箭發(fā)動(dòng)機(jī)振動(dòng)測(cè)試臺(tái)
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 ? 100 ?
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 G?,min 10 G?,min
訂貨型號(hào)
3143M16
配件
Supplied Accessories: (1) model 6247 mounting screw (6-32)
Compatible Cables: 6380AXX and 6381AXX
相關(guān)型號(hào)
3003B
