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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3273A1是一款微型三軸IEPE加速度傳感器/振動傳感器，壓電式工作原理，重量4g，頻響低至0.5Hz，自帶4針徑向連接器和黏貼安裝設計，應對超高濕度和多塵工作環境。
The Dytran 3273A1 is a miniature triaxial IEPE accelerometer with a low end frequency response of 0.5 Hz, for excellent phase response at low frequencies and excellent signal-to-noise ratio.
Available with a 10 mV/g sensitivity, the Dytran model 3273A1 features ceramic sensing elements coupled with ultra low noise JFET electronics, packaged in a robust laser welded titanium housing with an industry standard 4-pin radial connector and adhesive mounting capabilities. Units are hermetically sealed for reliable operation in high humidity and dirty environments.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 0.5 to 3,000 Hz frequency range (±5%)
4. 4-pin 1/4-28 radial connector
5. Adhesive mount
6. 2.7 grams
7. Titanium
8. Hermetic
9. Extended low frequency response
10. Miniature design
11. Low noise JFET electronics
12. Triaxial
13. IEPE
應用
1. Modal and structural analysis
模態和結構分析
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 0.096 oz 2.7 grams
Connector [1] Type 4-pin 4-pin
Material Ti-6 AL-4V Ti-6 AL-4V
Mates with Dytran cable model 6811AXX or 6824AXX
Housing Material Ti-6 AL-4V Ti-6 AL-4V (XX =length in feet)
Isolation Case ground Case ground
Sensitivity, ±10% [2] 10 mV/g 1.02 mV/m/s^2 [5] In the interest of constant product improvement, we reserve the right to change specifications without notice.
Acceleration Range +/-500 Gpeak +/- 4905 m/s^2 peak
Frequency Range, ±15% .3-10,000 Hz .3-10,000 Hz
Frequency Range, ± 5% .5 - 3000 Hz .5 - 3000 Hz
Resonance Frequency >24 kHz >24 kHz
Linearity [3] 1 %F.S. 1 %F.S.
Phase Response, ± 5° 2.3 to 3000 Hz 2.3 to 3000 Hz
Transverse Sensitivity Max 5 % 5 %
Noise floor, Max 0.003 Grms 0.029 m/s^2 rms
Spectral Noise 1Hz 629 µGrms/sqr(Hz) 6166 µm/s^2 rms/sqr(Hz)
10Hz 110 µGrms/sqr(Hz) 1074 µm/s^2 rms/sqr(Hz)
100Hz 67 µGrms/sqr(Hz) 657 µm/s^2 rms/sqr(Hz)
1000Hz 31 µGrms/sqr(Hz) 304 µm/s^2 rms/sqr(Hz)
10000Hz 16 µGrms/sqr(Hz) 157 µm/s^2 rms/sqr(Hz)
ELECTRICAL
Supply Current Range [4] 2 to 20 mA 2 to 20 mA
Compliance Voltage Range +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
0.5 to 1.5 sec 0.5 to 1.5 sec
ENVIRONMENTAL
Shock Max 5000 g pk 49050 m/s^2
Vibration Max 3000 g pk 29430 m/s^2
Operating Temperature -60 to +225 °F -51 to +107 °C
Seal Hermetic Hermetic
Magnetic Sensitivity at 100 Gauss 0.00007 g/Gauss 0.00069 m/s^2/Gauss
Base Strain Sensitivity 0.02 g/µε 0.1962 m/s^2/µε
配件
Recommended Accessories: model 4114B1 current source power unit, model 6273 petro mounting wax
Compatible Cables: 6811A, 6812A, 6824A, 6828A, 6873A, 6925A, 6933A, 6967A, 6997A
訂貨型號
3273A1
3273A2
3273A3
3273A4
相關型號
3273A1T TEDS
3273A2T TEDS
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