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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3213M6是一款三軸加速度傳感器/振動傳感器，壓電式工作原理，自帶放大器功能（IEPE）, 內建靜電屏蔽，防噪防靜電，自帶4針M12接口和10-32的螺紋通孔，靈敏度100mV/g。
The Dytran 3213M6 is a low profile, triaxial IEPE piezoelectric accelerometer with built-in Faraday shield for electrostatic noise immunity, a sensitivity of 100 mV/g, a radial 4-pin Brad Harrison™ connector and a 10-32 thru hole mount. This unique configuration allows the sensor to be turned 360° prior to securing for ease of sensor installation.
Design of the model 3213M6 incorporates ceramic shear sensing elements, packaged in a robust aluminum housing. The series is hermetically sealed for reliable operation in high humidity and dirty environments and case isolated to avoid EMI/ground loop interference.
特性
1. 100 mV/g sensitivity
2. 50g range
3. 1.5 to 5,000 Hz frequency range (±10%)
4. 4-pin radial connector
5. 10-32 thru hole mount
6. 58 grams
7. Aluminum
8. Hermetic
9. Case isolated
10. 360° cable orientation
11. Triaxial
12. IEPE
應用
1. Low profile or space constrained vibration monitoring applications
受限空間內振動監測應用
2. Walkabout data collection
徒步旅行數據收集
3. General purpose triaxial vibration monitoring
一般用途振動監測
Weight 2.03 oz 58 grams
Size (Height x Width x Depth) 0.75 x 1.25 x 1.25 Inches 19.05 x 31.75 x 31.75 mm
Connector Pins 4 PIN 4 PIN
Mounting Provision: Central Mounting Screw,Captive 10-32 10-32
Material : Housing / Connector Aluminum Alloy,Anodized Aluminum Alloy,Anodized
Sensitivity, ±10% [1] 100 mV/g 10.20 mV/m/s2
Range F.S (each axis) ±50 g ±490.5 m/s2
Frequency Response, ± 10% 1.5 to 5000 Hz 1.5 to 5000 Hz
Equivalent Natural Frequency, Nominal >30 kHz >30 kHz
Equivalent Electrical Noise B/B 0.004 grms 0.039 m/s2 rms
Linearity [2] ± 1% % F.S. ± 1% % F.S.
Maximum Transverse sensitivity 5 % 5 %
Signal Polarity [3] Positive g/μσ Positive m/s2/μσ
Maximum Vibration ±500 g's,peak ±4905
Maximum Shock ±5000 g's,peak ±49050 m/s2 peak
Temperature Range -40 to+200 °F -40 to+93 °C
Seal Hermetic Hermetic
Base Strain 0.002 g/μσ 0.02 m/s2/?
Supply Current Range, (each axis) [4] 2 to 20 mA 2 to 20 mA
Complaince (Supply) Voltage Range (each axis) + 18 to +30 Volts + 18 to +30 Volts
Output Impedence,Typ 100 Ω 100 Ω
Bias Voltage +8 to +10 VDC +8 to +10 VDC 1
Discharge Tme Constant, 0.3 to 1.3 Sec 0.3 to 1.3 Sec
Gorund Isolation [5] 10 GΩ,min 10 GΩ,min
訂貨型號
3213M6
配件
1. Model 6523A mounting screw (10-32)
2. Model 4114B1 current source power unit
3. 電纜線：6919A
相關型號
3063B
3213D1 工業型加速度傳感器
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