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3243A是一款小型、防潮式三軸加速度傳感器/振動傳感器，自帶2m防濺式電纜線。
The Dytran 3243A is a low profile, moisture resistant triaxial IEPE accelerometer with an overall height of 0.30 inches (7.6 millimeters) and weighing just 2.5 grams.
Featuring titanium construction, a 10 mV/g sensitivity and adhesive mounting, the model 3243A incorporates a 2-meter integral cable with a splash-proof boot at the point of sensor and cable connection. The hermetically sealed cable-to-accelerometer boot seal makes it possible for the sensor to be temporarily submerged during testing. Units are case isolated to avoid EMI/ground loop interference.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 1.5 to 10,000 Hz frequency range (±5%)
4. 2-meter integral cable
5. Adhesive mount
6. 2.5 grams
7. Titanium
8. Hermetic
9. Case isolated
10. Lightweight
11. Triaxial
12. Moisture resistant
13. IEPE
應用
General purpose triaxial vibration measurements in damp conditions
濕度條件下三軸振動測量
Weight, Less Cable, Max 0.09 oz 2.5 grams
Integral Cable [1] Cutoff Cutoff
Length 78 Inches 2 meters [1] Side Mounted
Mounting Provision Adhesive Mount Adhesive Mount
Material, Accelerometer Titanium Titanium
Sensing Material Quartz Quartz
Sensitivity, -10 / +15% [2] 10 mV/g 1 mV/m/s2
Range F.S for ± 5 Volts Output ±500 g ±4905 m/s2
Frequency Range, -5 / +15% 2 to 7000 Hz 2 to 7000 Hz
Resonant Frequency > 40 kHz > 40 kHz
Equivalent Electrical Noise Floor 0.007 Grms 0.069 m/s2 rms
Linearity [3] 1 % F.S. 1 % F.S.
Transverse Sensitivity, Max 5 % 5%
Strain Sensitivity @ 250µσ 0.039 G's/µσ 0.38 m/s2/µε
Maximum Vibration ±600 Gpeak ±5886 m/s2 peak
Maximum Shock ±5000 Gpeak ±49050 m/s2 peak
Temperature Range -60 to+250 °F -51 to +121 °C
Seal, Hermetic Welded/GTM Header Welded/GTM Header
ELECTRICAL
Supply Current Range [4] 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 1.5 Sec 0.3 to 1.5 Sec
Electrical Isolation, Case Ground To Mounting Surface 10 G?,min 10 G?,min
訂貨型號
3243A
3243M2
配件
Recommended Accessories: model 4114B1 current source power unit
相關防潮型
3006A
