美国3045A低温加速度传感器

3045A低温加速度传感器

概述

The Dytran 3045A is an IEPE accelerometer with continuous operation to -320°F (-196°C), expressly designed to support cryogenic vibration testing requirements.

Offered with a 5 mV/g sensitivity, the design of model 3045A incorporates a two-pole low-pass filter, which aids in eliminating spurious high frequency data, and a rugged stainless steel construction, along with a 1/4-28 integral mounting stud and a 10-32 axial connector. Even at extreme temperatures, the model 3045A displays an extremely stable and continuous signal output. Units are hermetically sealed for reliable operation in high humidity and dirty environments. The accelerometer is also electrically isolated via use of an internal Faraday shield for noise immunity.

特性

1. 5 mV/g sensitivity

2. 1,000g range

3. 4.8 to 1,800 Hz frequency range (±5%)

4. 10-32 axial connector

5. 1/4-28 stud mount

6. 20 grams

7. Stainless steel

8. Hermetic

9. Case isolated

10. -320°F (-196°C) operation

11. Two-pole low pass filter

12. Stable Mosfet amplifier technology

13. IEPE

应用

1. Cryogenic pump vibration measurements

2. Cryogenic industrial monitoring

3. Rocket engine vibration test stands

参数

Weight 0.70 oz 20 grams Notes:

Connector, Coaxial 10-32 10-32

Mounting Provision : Integral Stud 1/4 - 28 UNF-2A 1/4 - 28 UNF-2A

Material : Base, Cap, and Connector 300 Series S.S. 300 Series S.S. amplifier.

Element Material, Style Quartz, Shear Quartz, Shear

Sensitivity, ±5% [1] 5 mV/g 0.51 mV/m/s2

Range F.S for ± 5 Volts Output ±1000 g ± 9810 m/s2

Frequency Range ±3db 1.6 to 2500 Hz 1.6 to 2500 Hz

Filter Rolloff Rate 12 db/octave 12 db/octave

Filter Corner Frequency 2,500 Hz 2,500 Hz

Resonant Frequency >35 kHz >35 kHz

Noise floor 0.007 Grms 0.069 m/s2 rms

Linearity [2] ± 1% % F.S. ± 1% % F.S.

Maximum Transverse sensitivity 5 % 5 %

Strain Sensitivity 0.002 g/μσ 0.02 m/s2

Maximum Vibration ±1000 G's,peak ±9810 m/s2 peak

Maximum Shock ±2000 G's,peak ±19620 m/s2 peak

Temperature Range -320 to+300 °F -195 to +149 °C

Seal Hermetic Hermetic

Coeffiecient of Thermal Sensitivity .03 %/°F 0.05 %/°C

ELECTRICAL

Supply Current Range [3] 2 to 4 mA 2 to 4 mA

Compliance Voltage Range + 28 Volts + 28 Volts

Output Impedence,Typ 100 Ω 100 Ω

Bias Voltage +7.5 to +9.5 VDC +7.5 to +9.5 VDC

Discharge Time Constant 0.1 to 1.0 Sec 0.1 to 1.0 Sec

Output Signal Polarity for Acceleration Towards Top Positive Positive

Electrical Isolation, Ground (Pin B) to case( pin A) 10 GΩ,min 10 GΩ,min

配件

Recommended Accessories: model 4110C current source power unit

订货型号

3045A