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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IEPE三轴加速度传感器/振动传感器，坐垫型，压电式工作原理，可安装在车座上，集成10英尺电缆线。
The Dytran 5313A is a triaxial IEPE seat pad accelerometer, designed to be installed between the ride and vehicle seat in transportation-related applications. The model 5313A utilizes an integral 10-foot cable, terminating to (3) BNC plugs.
Construction of the Dytran model 5313A consists of a thin rubber cushion containing the model 3143M1 accelerometer. The model 3143M1 is mounted within the rubber housing, or may be used as a stand-alone accelerometer. The model 5313A seat pad accelerometer conforms to ISO 8041, which specifies the performance and tolerance limits for instruments designed to measure vibration values in human vibration response assessments.
特性
1. 100 mV/g sensitivity
2. 50g range
3. 0.5 to 3,000 Hz frequency range (±5%)
4. 10-foot integral cable assembly
5. 227 grams
6. Rubber
7. Hermetic
8. Conforms to ISO 8041
9. Triaxial
10. Seat pad
11. IEPE
应用
1. Ride quality
乘车品质
2. Whole body vibration measurements
全身振动测定
WEIGHT 0.47 (227) Lb. (Grams)
SIZE, DIA. X THICKNESS Ø9.16 (232) X Ø.47 (12.0) Inches (mm)
CONNECTORS, AT END OF RADIAL 10 FT. CABLE (3) BNC PLUGS
MATERIAL, PAD RUBBER
CENTRAL HOUSING ANODIZED ALUMINUM
PERFORMANCE
CONFORMS TO ISO 8041
EACH AXIS
SENSITIVITY, EACH AXIS, ± 5% [1] 100 mV/G
RANGE F.S. FOR +/- 5 VOLTS OUTPUT ± 50 G's
FREQUENCY RANGE, ± 5% 0.5 to 3000 Hz
RESONANT FREQUENCY, NOM. 25 kHz
EQUIVALENT ELECTRICAL NOISE FLOOR .0007 G's RMS
LINEARITY [2] ± 1% % F.S.
TRANSVERSE SENSITIVITY, MAX. 5 %
STRAIN SENSITIVITY .012 G’s/ @ 250
ENVIRONMENTAL
MAXIMUM VIBRATION/SHOCK 400/1500 ± G's/G's PEAK
TEMPERATURE RANGE, OPERATING -60 to +160 oF
TEMPERATURE RANGE, SURVIVAL -100 TO +275 °F
SEAL, ACCELEROMETER HERMETIC
COEFFICIENT OF THERMAL SENSITIVITY .03 %/oF
ELECTRICAL
SUPPLY CURRENT/COMPLIANCE VOLTAGE RANGE [3] 2 to 20/+18 to +30 mA/Volts
OUTPUT IMPEDANCE, TYP. 100 Ohms
BIAS VOLTAGE RANGE +11 to +13 VDC
DISCHARGE TIME CONSTANT RANGE 0.8 to 2.0 Sec
OUTPUT SIGNAL POLARITY FOR ACCELERATION TOWARD TOP Positive
OUTPUT POLARITY FOR ACCELERATION IN DIRECTION OF ARROWS positive
ELECTRICAL ISOLATION, CASE GROUND TO MOUNTING SURFACE 10 Megohms, min.
CABLE, TERMINATES IN 3-BNC’s FOR CONNECTION TO 3 POWER UNITS 6FT 8” LONG
订货型号
5313A
配件
Recommended Accessories: model 4114B1 current source power unit
