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IEPE是指一種自帶電量放大器或電壓放大器的加速度傳感器。IEPE是壓電集成電路的縮寫。因為由加速度傳感器產生的電量是很小的，因此傳感器產生的電信號很容易受到噪聲干擾，需要用靈敏的電子器件對其進行放大和信號調理。IEPE中集成了靈敏的電子器件使其盡量靠近傳感器以保證更好的抗噪聲性并更容易封裝。
美國Dytran的3214A1是一款IEPE加速度傳感器/振動傳感器，靈敏度10 mV/g，集成低噪低噪JFET電子元件，性能可靠，可在潮濕和多塵環境下正常工作。
The Dytran 3214A1 is a cost effective single axis IEPE accelerometer available with a sensitivity of 10 mV/g. Units feature a wide bandwidth, 10-32 radial connector and 10-32 stud mounting capabilities. The model 3214A1 incorporates low noise JFET electronics and is hermetically sealed for reliable performance in high humidity and dirty environments.
特性
1. 10 mV/g sensitivity
2. 500g range
3. 1 to 10,000 Hz frequency range (±5%)
4. 10-32 radial connector
5. 10-32 tapped hole
6. 11 grams
7. Titanium
8. Hermetically sealed
9. Low noise JFET electronics
10. Unique cubic design
11. IEPE
應用
1. Modal analysis
模態分析
2. Noise, Vibration and Harshness (NVH)
噪音，振動和不平順性
3. Squeak & Rattle
異響檢測
WEIGHT 11 grams
SIZE, SQUARE x HEIGHT .50 x 0.57 inches
MOUNTING PROVISION 10-32 X .150 DEEP TAPPED HOLE
CONNECTOR, SIDE MOUNTED 10-32 Coaxial
MATERIAL, BASE, CAP & CONNECTOR TITANIUM
SEISMIC ELEMENT TYPE CERAMIC, PLANAR SHEAR
MODELS
3214A1 3214A2 3214A3
PERFORMANCE
SENSITIVITY, ± 5% [1] 10 100 500 mV/g
RANGE F.S. FOR ± 5 VOLTS OUTPUT ± 500 ±50 ±10 g's
FREQUENCY RANGE, ± 5% (all models) 1 to 10,000 Hz
RESONANT FREQUENCY(all models) >35 kHz
EQUIVALENT ELECTRICAL NOISE .007 .0007 .0002 grms
LINEARITY [2] (all models) ±2 % F.S.
TRANSVERSE SENSITIVITY, MAX. (all models) 5 %
BASE STRAIN SENSITIVITY 0.0028 g’s/με
3214A1 3214A2 3214A3
ENVIRONMENTAL
MAXIMUM VIBRATION/SHOCK 600/5000 400/5000 200/5000 ± gpk
TEMPERATURE RANGE -60 to +250 -60 to +225 -60 to +180 °F
SEAL, HERMETIC Glass-to-metal/welded
COEFFICIENT OF THERMAL SENSITIVITY .06 %/°F
ELECTRICAL
SUPPLY CURRENT [3] 2 to 20 mA
COMPLIANCE VOLTAGE RANGE 18 to +30 Volts
OUTPUT IMPEDANCE, TYP. 100 Ω
BIAS VOLTAGE +11 to +13 VDC
DISCHARGE TIME CONSTANT 0.5 – 1.2 Sec
OUTPUT SIGNAL POLARITY Positive
FOR ACCELERATION TOWARD TOP
ELECTRICAL ISOLATION case grounded
訂貨型號
型號 | 靈敏度(mV/g) | 量程（g） | 沖擊力（g） | 工作溫度(°F) |
3214A1 | 10 | ± 500 | 5000 | -60 - +250 |
3214A2 | 100 | ± 50 | 5000 | -60 - +225 |
3214A3 | 500 | ± 10 | 5000 | -60 - +180 |
型號 | 靈敏度(mV/g) | 量程（g） | 沖擊力（g） | 工作溫度(°F) |
3214A1T | 10 | ± 500 | 5000 | -60 - +250 |
3214A2T | 100 | ± 50 | 5000 | -60 - +225 |
3214A3T | 500 | ± 10 | 5000 | -60 - +180 |
配件
1. Model 6200 mounting stud (10-32 to 10-32)
2. Model 4110C current source power unit, model 6213 adhesive mounting base, model 6220 isolated mounting stud, model 6258 magnetic mounting base
3. Compatible Cables: 6010A, 6011A, 6012A, 6016A, 6018A, 6022A, 6026A, 6032A, 6033A, 6049A, 6050A, 6051A, 6053A, 6054A, 6066A, 6069A, 6093A, 6099A, 6400A, 6401A, 6412A, 6429A, 6924A, 6930A, 6991A
相關型號
3234A1
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