Quartz Flexure Accelerometer
designed for Navigation Control and Measurement
Quartz flexure accelerometer SNQ1 has been developed to meet the needs of high accuracy, long-term stability, and high reliability for flight control systems of commercial aircraft. Field-proven SenNav quartz technology supports an excellent flying experience for people in the world.
Features
Wide measurement range (±50G)
High accuracy with long term stability
Integral temperature sensor
Applications
Flight control system
Inertial navigation system
Technical data
| No. | Parameters | SNQ1-01 | SNQ1-02 | SNQ1-03 | SNQ1-04 |
| 1 | Range(g) | ±50 | ±50 | ||
| 2 | Threshold /Resolution(μg) | 5 | 5 | ||
| 3 | Bias k0/k1(mg) | ≤±3 | ≤±5 | ≤±7 | ≤±8 |
| 4 | Scale factor k1(mA/g) | 1.3±0.2 | 0.1~1.33 | ||
| 5 | Class II nonlinearity Coefficient k2/k1(μg /g2) | ≤±20 | ≤±30 | ≤±30 | ≤±20 |
| 6 | 0g 4 hours short time stability(μg) | ≤10 | ≤20 | ≤30 | – |
| 7 | 1g 4 hours short time stability(ppm) | ≤10 | ≤20 | ≤30 | – |
| 8 | Bias drift repeatability σ k0( 1σ, one month)(μg) | ≤10 | ≤30 | ≤50 | ≤50 |
| 9 | Scale factor repeatability σ k1/k1(1σ, one month)(ppm) | ≤15 | ≤30 | ≤50 | ≤50 |
| 10 | Class II nonlinearity Coefficient repeatability σ k2/k1(1σ, one month)(μg /g2) | ≤±10 | ≤±20 | ≤±30 | – |
| 11 | Bias thermal coefficient(μg /℃) | ≤±10 | ≤±30 | ≤±50 | ≤±60 |
| 12 | Scale factor thermal coefficient(ppm/℃) | ≤±20 | ≤±30 | ≤±50 | ≤±60 |
| 13 | Noise (sample resistance 840Ω)(mv) | ≤5 | ≤8.4 | ≤8.4 | ≤6 |
| 14 | Natural Frequency(Hz) | 400~800 | – | ||
| 15 | Bandwidth(Hz) | 800~2500 | > 300 | ||
| 16 | Vibration | 6g(20-2000Hz) | 7.8g(20-2000Hz) | ||
| 17 | Shock | 100g,5ms,1/2sin | 250g,4ms,1/2sin | ||
| 18 | Operating temperature range (℃) | -40~+85 | -40~+95 | ||
| 19 | Storage temperature range (℃) | -60-+120 | -45-+100 | ||
| 20 | Voltage(V) | ±12~±15 | ±12~±15 | ||
| 21 | Consume current(mA) | ≤±20 | ±20 | ||
| 22 | Temperature sensor | Yes or No | Yes or No | ||
| 2 | 2 | ||||
| 23 | Size(mm) | Ф25.4X30 | Ф25.4X26 | ||
| 24 | Weight(gram) | ≤80 | ≤50 | ||
Technical information provided herein, including Quartz flexure accelerometer specifications, drawings, and schematics which are intended for reference purposes only, is believed to be reliable. If there are any questions about SenNav products, please contact info@sennavs.com for more information. You can also click WhatsApp directly solutions.