Unique Quartz Flexible Sensors High-Range(70g) Accelerometer With Temperature Sensor
JB2 accelerometer family utilizes unique quartz flexible sensors. The high-range(70g) accelerometer is designed for measurement of Inertial accelerations in aerospace environment,It is the predominant sensor used in china’s commercial and military aircraft strap-down inertial navigation systems.The long-term Repeatability and superior reliability characteristics of the JB2 make it the best value inertial-grade accelerometer available on the market today.
JB2 features a patented Q-flex& etched-quartz-flexure seismic system. An amorphous quartz proof-mass structure provides excellent bias, scale factor, and axis alignment repeatability.
The integral electronics develops an acceleration-proportional output current providing both static and dynamic acceleration measurement. By use of customer supplied output load resistor, appropriately scaled for the acceleration range of the application, the output current can be converted into a voltage.
The JB2 also includes a current-output, internal temperature sensor. By applying temperature-compensating algorithms, bias, scale factor, and axis misalignment performance are dramatically improved.
Features
1. Excellent turn-on repeatability performance
2. Environmentally rugged
3. Analog output
4. Field adjustable range
5. Internal temperature sensor for thermal compensation(option)
6. High range(70g)
Performance Characteristics
| No. | Parameter | JB2-01 | JB2-02 |
| 1 | measuring range | ±70g | ±70g |
| 2 | Threshold value | 5μg | 5μg |
| 3 | Deviation value k0/k1 | ≤(±3 mg) | ≤(±5 mg) |
| 4 | Scale factor k1 | 1.3±0.2 mA/g | 1.3±0.2 mA/g |
| 5 | Second-order nonlinear coefficientK2 | ≤±20μg /g2 | ≤±30μg /g2 |
| 6 | 0g 4 h short-term stability | ≤10 μg | ≤20 μg |
| 7 | 1g 4 h short-term stability | ≤10 ppm | ≤20 ppm |
| 8 | Deviation value Comprehensive repeatabilityσk0 (1σ,1 month) | ≤10 μg | ≤30 μg |
| 9 | Scale factor Comprehensive repeatabilityσk1/k1 (1σ,1 month) | ≤15ppm | ≤30 ppm |
| 10 | Nonlinear coefficient Comprehensive repeatabilityσk2/k1(1σ,1 month) | ≤±10 μg /g2 | ≤±20 μg /g2 |
| 11 | Deviation valueTemperature Coefficient | ≤±20 μg /℃ | ≤±30 μg /℃ |
| 12 | Scale factorTemperature Coefficient | ≤±20 ppm /℃ | ≤±30ppm /℃ |
| 13 | noise(Sampling resistance is 840Ω) | ≤5mv | ≤8.4mv |
| 14 | Natural frequency | 400~800 Hz | 400~800 Hz |
| 15 | bandwidth | 800~2500 Hz | 800~2500 Hz |
| 16 | vibration | 5g(20-2000Hz) | 5g(20-2000Hz) |
| 17 | Shock | 100g,5ms,1/2sin | 100g,5ms,1/2sin |
| 18 | Operating temperature measuring range | -40-+85℃ | -40-+85℃ |
| 19 | storage temperature measuring range | -60-+120℃ | -60-+120℃ |
| 20 | powered | ±12~±15V | ±12~±15V |
| 21 | Current consumption | ≤±20mA | ≤±20mA |
| 22 | Tempe Sensor | Yes and No two type | Yes and No two type |
| 23 | size | Ф25.4X30mm | Ф25.4X30mm |
| 24 | weight | ≤80g | ≤80g |
Applications
● Drilling and Inclination Measurement
● Aeronautics and Astronautics
● Instruments and Equipment
Configuration Drawing and interface
Mark: the temperature sensor is AD590, Point 10 is the high power. The point 9 is the low power. The point 9 and power ground use one platinum resistance; the value is 1K, the thermal coefficient is less than 5ppm.
