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(xiàn)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(tài)，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(xiàn)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(zhì)。
美國Dytran的3263A1是一款微型三軸加速度傳感器/振動傳感器，壓電式工作原理，重量4g，自帶4針徑向連接器和4-40螺紋安裝設計，同時集成3個陶瓷剪切感應元件，高密封封裝，應對超高濕度和多塵工作環(huán)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
應用
1. Modal and structural analysis
模態(tài)和結(jié)構(gòu)分析
2. Noise, Vibration and Harshness (NVH)
噪音，振動和不平順性
3. Squeak & Rattle
4. Vibration control
振動控制
5. General purpose triaxial vibration measurements
一般用途三軸振動測量
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 ? 100 ?
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
訂貨型號
MODEL SENSITIVITY
3263A1 10 mV/g
3263A2 100 mV/g
3263A3 50 mV/g
相關(guān)型號
3263A1T TEDS
3263A2T TEDS
3263A3T TEDS
3263A7T TEDS
3263A8T TEDS
