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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3263A1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，重量4g，自带4针径向连接器和4-40螺纹安装设计，同时集成3个陶瓷剪切感应元件，高密封封装，应对超高湿度和多尘工作环境。
The Dytran 3263A1 is a miniature IEPE triaxial accelerometer with an overall weight of 5.6 grams.
Available with a sensitivity of 10 mV/g, design of the Dytran model 3263A1 features ceramic shear sensing elements, coupled with low noise electronics and packaged in a lightweight titanium housing. The accelerometers offer a broad frequency response with an industry standard 4-pin connector and 4-40 stud mounting. Units are hermetically sealed for reliable operation in harsh and dirty environments.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 0.3 to 10,000 Hz frequency range (+15/-10%)
4. 4-pin 1/4-28 radial connector
5. 4-40 tapped hole
5.6 grams
6. Titanium
7. Hermetic
8. Low noise
9. Triaxial
10. IEPE
应用
1. Modal and structural analysis
模态和结构分析
2. Noise, Vibration and Harshness (NVH)
噪音，振动和不平顺性
3. Squeak & Rattle
4. Vibration control
振动控制
5. General purpose triaxial vibration measurements
一般用途三轴振动测量
Weight, Max. 0.2 oz 5.6 grams
Mounting, Integral Thread 4-40 UNC-2B 4-40 UNC-2B
Sensing Element Material Ceramic Ceramic
Sensitivity +/- 10% [2] 10 mV/g 1.02 mV/ m/s2
Range F.S. For ± 5 Volts Output ± 500 g ± 4900 m/s2
Frequency Response, - 10% to + 15% 0.3 to 10000 Hz 0.3 to 10000 Hz
Resonant Frequency >40 KHz >40 KHz
TYPICAL LOW FREQUENCY RESPONSE
Phase Response, ± 5° 2 to 3000 Hz 2 to 3000 Hz
Linearity, Max [3] ± 1% %F.S ± 1% %F.S
Transverse Sensitivity, Max. 6% 6%
Equivalent Electrical Noise Floor 0.008 g rms 0.08 m/s2 rms -60 -1.45
Spectral Noise 1Hz 100 µGrms/√(Hz) 981 µm/s2 rms/√(Hz) 75 0.6
10Hz 50 µGrms/√(Hz) 491 µm/s2 rms/√(Hz) 100 1.1
100Hz 10 µGrms/√(Hz) 98 µm/s2 rms/√(Hz) 150 2.7
1000Hz 10 µGrms/√(Hz) 98 µm/s2 rms/√(Hz) 200 3
10000Hz 5 µGrms/√(Hz) 49 µm/s2 rms/√(Hz) 250 0.5
ENVIRONMENTAL
Maximum Vibration 600 ±gpk 5886 ± m/s2 pk
Maximum Shock 5000 ±gpk 49050 ± m/s2 pk
Temperature Range -60 to +250 °F -51 to 121 °C
Seal Hermetic Hermetic
ELECTRICAL
Supply Current [4] 2 to 20 mA 2 to 20 mA
Compliance Voltage Range +18 to +30 V +18 to +30 V
Output Impedance TYP 100 Ω 100 Ω
Bias Voltage +11 to +13 VDC +11 to +13 VDC
Discharge Time Constant 1.0 to 2.0 sec 1.0 to 2.0 sec
配件
Supplied Accessories: (1) model 6721 mounting stud (4-40 to 4-40)
Recommended Accessories: model 4114B1 current source power unit, model 6714 isolated mounting base, model 6729 magnetic mounting base
Compatible Cables: 6811A, 6812A, 6824A, 6828A, 6873A, 6925A, 6933A, 6967A, 6997A
订货型号
MODEL SENSITIVITY
3263A1 10 mV/g
3263A2 100 mV/g
3263A3 50 mV/g
相关型号
3263A1T TEDS
3263A2T TEDS
3263A3T TEDS
3263A7T TEDS
3263A8T TEDS
