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quartz accelerometer is a force equilibrium sensor,a precise instrument designed according to the principle of ineria
Features
Applications
Characteristics table
| No. | Parameters | QTA2-A | QTA2-A-B | QTA2-A-C |
| 1 | Range | ±70g | ±70g | ±70g |
| 2 | Threshold | 5μg | 5μg | 5μg |
| 3 | Bias K0/K1 | ≤±3 mg1 | ≤±3 mg | ≤±5 mg |
| 4 | Scale factor K1 | 0.8~1.5 mA/g | 0.8~1.5 mA/g | 0.8~1.5 mA/g |
| 5 | Second order nonlinearity coefficient K2 | ≤±10μg /g2 | ≤±15μg /g2 | ≤±20μg /g2 |
| 6 | 0g 4 hours short-term stability | ≤10 μg | ≤15 μg | ≤20 μg |
| 7 | 1g 4 hours short-term stability | ≤10 ppm | ≤15 ppm | ≤20 ppm |
| 8 | Bias comprehensive repeatability σK0 (1σ,1 month) | ≤10 μg | ≤20 μg | ≤30 μg |
| 9 | Scale factor comprehensive repeatability σK1/K1 (1σ,1 month) | ≤15ppm | ≤30 ppm | ≤50 ppm |
| 10 | Nonlinearity coefficient comprehensive repeatability K2/K1(1σ, 1 month) | ≤±10 μg /g2 | ≤±20 μg /g2 | ≤±30 μg /g2 |
| 11 | Bias thermal coefficient (full temp. mean) | ≤±10 μg /℃ | ≤±30 μg /℃ | ≤±50 μg /℃ |
| 12 | Scale factor thermal coefficient (full temp. mean) | ≤±10 ppm /℃ | ≤±30 ppm /℃ | ≤±50 ppm /℃ |
| 13 | Noise (sampling resistance 840Ω) | ≤5mv | ≤5mv | ≤5mv |
| 14 | Natural frequency | 400~800 Hz | 400~800 Hz | 400~800 Hz |
| 15 | Bandwidth | 800~2500 Hz | 800~2500 Hz | 800~2500 Hz |
| 16 | Random vibration | 6g(20-2000Hz) | 6g(20-2000Hz) | 6g(20-2000Hz) |
| 17 | Impact | 100g,5ms,1/2sin | 100g,5ms,1/2sin | 100g,5ms,1/2sin |
| 18 | Working temp. | -55～+85℃ | -55～+85℃ | -55～+85℃ |
| 19 | Store temp. | -60~+120℃ | -60~+120℃ | 60~+120℃ |
| 20 | Power supply | ±12~±15V | ±12~±15V | ±12~±15V |
| 21 | Consume current | ≤±20mA | ≤±20mA | ≤±20mA |
| 22 | Thermal sensor | Customizable | Customizable | Customizable |
| 23 | Size | Ф25.4X30mm | Ф25.4X30mm | Ф25.4X30mm |
| 24 | Weight | ≤80g | ≤80g | ≤80g |
A quartz accelerometer is a force equilibrium sensor,a precise instrument designed according to the principle of ineria.The acceleration input is converted to its fracture's subtle displacement,and then balanced by a feedback force.As a force feedback loop is used,the accelerometer has the features of high precision,high shock resistance,broad measurement range and excellent overload capacity.It is one of the most essential devices in the inertial navigation and guidance system.A quartz accelerometer consists of a gauge head.an excitation circuit and a frequency measurement circuit.The gauge head consists of a dampling plate,a metal pendulum and a force sensitive quartz stick.
Dimensions
