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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3233A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，灵敏度高达10000mV/g，自带4针径接口和安装螺纹通孔，应对超高湿度和多尘工作环境。
The Dytran 3233A is an IEPE triaxial accelerometer with an ultra high sensitivity of 1,000 mV/g, intended for the measurement of very low vibrations.
The sensors feature ceramic shear sensing elements, packaged in a lightweight rugged titanium housing, with an industry standard radial 4-pin connector and thru hole mounting capabilities for 8-32 or #M4 screw. This ring style mounting configuration allows the sensor to be turned 360° prior to securing for ease of installation. Units are hermetically sealed for reliable operation in high humidity and dirty environments, as well as electrically base isolated to avoid EMI/ground loop interference.
特性
1. 1,000 mV/g sensitivity
2. 5g range
3. Axis 1 & 2: 0.4 to 3,000 Hz frequency range (±10%)
4. Axis 3: 0.4 to 6,000 Hz frequency range (±10%)
5. 4-pin 1/4-28 radial connector
6. Thru hole mount
7. 28 grams
8. Titanium
9. Hermetic
10. Base isolated
11. 360° cable orientation
12. Ultra high sensitivity
13. Triaxial
14. IEPE
应用
1. Civil structural monitoring
土木结构监测
2. Low level vibration measurements
振动测量
3. Seismic monitoring
地震监测
4. General purpose triaxial vibration measurements
一般用途三轴振动测量
Weight, Max 1.05 oz 30 grams
Mounting 8-32 Screw 8-32 Screw
Connector Type [1] 4-PIN 4-PIN
Sensitivity, +/-10%
Range, Full Scale (Each Axis) 5 ± g pk 49.05 ± m/s2 pk
Frequency Range Axis 1 & 2, +/- 10% .3 to 3000 Hz .3 to 3000 Hz
Frequency Range Axis 3, +/- 10% .3 to 6000 Hz .3 to 6000 Hz
Element Natural Frequency >20 kHz >20 kHz
Equivalent Electrical Noise 0.0001 g rms 0.001 m/s2 rms
Linearity [3] 1 % F.S. 1 % F.S.
Transverse Sensitivity Max 5% 5 %
ENVIRONMENTAL
Vibration Max 500 ± g pk 4905 ± m/s2 pk
Shock Max 5000 ± g pk 49050 ± m/s2 pk
Operating Temperature -60 to +200 °F -51 to +93 °C
Seal Hermetic Hermetic
ELECTRICAL
Supply Current Range [4] 2 to 20 mA 2 to 20 mA
+18 to +30 VDC +18 to +30 VDC
Output Impedance, Typ. 100 Ω 100 Ω
Output Bias Voltage +11 to +13 VDC +11 to +13 VDC
Discharge Time Constant 0.9 to 2.0 Sec 0.9 to 2.0 Sec
Ground Isolation, Min. 10 MΩ 10 MΩ
配件
Supplied Accessories: (1) model 6582 mounting bolt, (1) model 6583 mounting washer
Recommended Accessories: model 4114B1 current source power unit
Compatible Cables: 6811A, 6812A, 6824A, 6828A, 6873A, 6925A, 6933A, 6967A, 6997A
订货型号
3233A
3233AT
3233A1T
3233A2T
3233A3T
3233A4T
3233A5T
