Wide-range Quartz Accelerometer

This wide range quartz accelerometer is a high-precision, wide-range military inertial navigation-grade accelerometer, with a measurable range up to 100g, which fills the gap of high-precision measurement in high-impact scenarios such as missile launch, aircraft take-off and landing, and ordnance shock testing. It is specially developed and manufactured for harsh military and high-end industrial environments, integrating excellent long-term stability, high repeatability, fast and reliable start-up performance, strong environmental adaptability and high operational reliability, fully meeting the strict requirements of military equipment and high-end industrial measurement for sensor performance.

 

The product features strong versatility, suitable for both static testing (such as static tilt measurement of precision instruments, attitude calibration of military equipment) and dynamic testing (such as shock and vibration monitoring of aerospace components, impact resistance testing of ordnance equipment). Meanwhile, it can also serve as a standard vibration sensor and tilt sensor, providing multi-scenario, high-precision measurement support for military, aerospace, aviation, shipbuilding and other fields, and effectively reducing the cost of equipment configuration.

 

In terms of output performance, the product's output current has an excellent linear relationship with the applied force or acceleration, with a linearity error less than ±0.02% (full scale), ensuring high-precision data output in the entire 100g range, even in high-impact dynamic scenarios. Users can easily select an appropriate sampling resistor through simple calculation, converting the current output into a voltage signal that is easy to collect and process, realizing high-precision measurement without complex configuration, which greatly improves the efficiency of system integration.

 

With its compact structure, light weight and easy installation, the product can be flexibly installed in narrow spaces such as inertial navigation systems, aerospace equipment and precision instruments, without increasing the overall weight burden of the equipment. It is widely applied in military inertial navigation systems (such as fighter jets, warships, precision guided missiles), aerospace vibration monitoring, ordnance testing, industrial precision measurement and other high-demand fields, providing reliable technical support for the development of related industries.

1.Excellent turn-on repeatability performance: The product features outstanding turn-on repeatability, with a repeatability error less than ±0.01% (full scale). Every time it is powered on and started, it can quickly enter a stable working state, and the measurement data is highly consistent without obvious deviation.

2.Environmentally rugged: Designed for harsh military and industrial environments, the accelerometer has strong environmental ruggedness. It adopts a hermetically sealed metal shell and high-quality corrosion-resistant materials, which can resist high and low temperatures (-40℃~85℃).

3.Analog output: The wide range accelerometer adopts analog current output mode, which has the characteristics of strong anti-interference ability and stable signal transmission. The output signal has an excellent linear relationship with the measured acceleration, and can be directly connected to common data acquisition equipment and control systems without complex signal conversion.

4.Field adjustable range: It supports field adjustable range, which is flexible and convenient to use. Users can adjust the measurement range according to the actual application scenario and measurement needs on the spot, without disassembling the equipment or returning it to the factory for debugging.

5.Internal temperature sensor for thermal compensation (option): An internal high-precision temperature sensor can be configured according to user requirements, which is specially used for real-time collection of ambient temperature data. Cooperating with a professional temperature compensation algorithm, it can dynamically compensate the bias and scale factor of the accelerometer, effectively reducing the impact of ambient temperature fluctuations on measurement accuracy, ensuring stable and high-precision performance even in extreme temperature environments.

6.High range (100g): With a maximum measurable range of 100g, it is a high-range military inertial navigation-grade accelerometer, which fills the gap of high-precision measurement in high-impact scenarios. It can accurately measure the acceleration of high-impact processes such as missile launch, aircraft take-off and landing, and ordnance explosion shock, while also ensuring high precision in low-range measurement, realizing dual advantages of wide range and high precision.

1. Inertial measurement of military high-precision inertial navigation systems:It accurately measures the linear acceleration of equipment in three axes, cooperates with gyroscopes to calculate real-time position, speed and attitude, ensuring stable navigation and positioning even in harsh environments without satellite signals, and providing reliable support for military operations.

2. Vibration isolation testing of precision instruments and equipment in aerospace field: Applied to vibration isolation testing of satellite components, rocket engine test benches and space station equipment. It accurately detects the vibration response of equipment under extreme conditions such as launch shock and space environment vibration, helping R&D personnel optimize vibration isolation structure design and ensure the safe and stable operation of aerospace equipment in orbit.

3. Vibration isolation testing of precision instruments and equipment in aviation field: Used for vibration isolation testing of aircraft avionics systems, engine components and cabin equipment. It monitors the vibration status of equipment in real time during flight, identifies potential faults in advance, reduces the impact of vibration on equipment accuracy and service life, and improves the safety and reliability of aircraft operation.

4. Vibration isolation testing of precision instruments and equipment in shipbuilding field: Applied to vibration isolation testing of shipborne precision navigation instruments, radar systems and sonar equipment. It reduces the impact of ship hull vibration on instrument measurement accuracy, ensures the normal operation of shipborne equipment in complex sea conditions such as waves and storms, and guarantees the navigation safety of warships and civil ships.

5. Inclination testing of precision instruments and equipment in related fields: It serves as a high-precision tilt sensor, used for inclination testing and attitude calibration of precision instruments and equipment in aerospace, aviation, shipbuilding and ordnance fields. It accurately measures the tilt angle of equipment, ensures the normal operation of equipment and the accuracy of measurement data, and adapts to both static and dynamic inclination measurement scenarios.

Standard definition of pins:

1.Signal output; 2.Empty; 3.-15V; 4.+15V; 5.Power supply and signal ground; 6.Empty; 7.Empty; 8.Empty; 9.-9V output; 10.+9V output.

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.

1. High Range & High Precision: As a military inertial navigation-grade accelerometer, it boasts a wide measurable range of up to 100g, filling the gap of high-precision measurement in high-impact scenarios. With a linearity error less than ±0.02% (full scale) and excellent measurement stability, it can accurately capture both high-impact dynamic signals and low-acceleration static signals, meeting the strict precision requirements of high-demand fields.

2.Excellent Performance & Reliability: It features outstanding turn-on repeatability (repeatability error < ±0.01% full scale), ensuring consistent and stable measurement data in long-term cyclic work. The high-quality quartz sensitive element and precision manufacturing process guarantee long-term reliability, with low failure rate and strong adaptability to long-term continuous operation.

3.Environmentally Rugged Design: Tailored for harsh military and industrial environments, it adopts a hermetically sealed metal shell, which can resist high and low temperatures (-40℃~85℃), high humidity, dust, corrosive gas and strong vibration. It maintains stable performance in extreme scenarios such as high-altitude, desert, marine and battlefield, fully meeting the harsh environmental requirements.

4.Flexible & Convenient to Use: Equipped with analog current output, it can be directly connected to common data acquisition equipment and control systems, reducing system integration difficulty and cost. It also supports field adjustable range, allowing users to adjust the measurement range on-site according to actual needs without disassembling equipment or returning it to the factory.

5.Optional Temperature Compensation: An internal high-precision temperature sensor can be configured according to user requirements, cooperating with a professional temperature compensation algorithm to dynamically adjust bias and scale factor. This effectively reduces the impact of temperature fluctuations on measurement accuracy, ensuring stable performance in extreme temperature environments.

6.Versatile Application Scenarios: It is widely used for inertial measurement of military high-precision inertial navigation systems, as well as vibration isolation testing and inclination testing of precision instruments in aerospace, aviation, shipbuilding and ordnance fields. It can serve as a standard vibration sensor and tilt sensor, providing multi-scenario measurement support and reducing equipment configuration costs.

1. Core Sensing Mechanism: The core component of the accelerometer is a high-quality quartz flexible pendulum, which consists of a quartz flexible beam and a pendulum mass. When external acceleration is applied to the accelerometer, the pendulum mass generates an inertial force under the action of inertia, which acts on the quartz flexible beam and causes elastic deformation of the beam. The magnitude of this deformation is directly proportional to the applied acceleration, laying the foundation for subsequent signal conversion.

2. Signal Conversion Process: The quartz flexible pendulum is paired with a fixed electrode to form a capacitance sensing structure. When the quartz flexible beam deforms under the action of inertial force, the distance between the pendulum and the fixed electrode changes, resulting in a tiny change in the capacitance value of the sensing structure. The internal high-precision detection circuit captures this tiny capacitance change and converts it into a current signal, realizing the conversion from mechanical acceleration (mechanical quantity) to electrical signal (electrical quantity).

3. Closed-Loop Feedback Regulation: To ensure high measurement accuracy and stability, the accelerometer adopts a closed-loop control system. After the detection circuit converts the capacitance change into a current signal, the feedback circuit processes the signal and generates a feedback force (electromagnetic force or electrostatic force). This feedback force is equal in magnitude and opposite in direction to the inertial force of the pendulum, pulling the pendulum back to the initial equilibrium position, thereby reducing measurement errors caused by excessive deformation of the quartz beam.

4. Temperature Compensation (Optional): If the accelerometer is equipped with a built-in temperature sensor (optional), the sensor will collect real-time ambient temperature data during operation. The supporting temperature compensation algorithm will dynamically adjust the bias and scale factor of the accelerometer according to the collected temperature data, effectively offsetting the impact of temperature fluctuations on the quartz material and circuit performance, and ensuring that the measurement accuracy remains stable even in extreme temperature environments.

In summary, the wide range quartz accelerometer relies on the high sensitivity of the quartz flexible structure, the precision of signal conversion and the stability of closed-loop feedback, realizing high-precision measurement of acceleration in both static and dynamic scenarios, which is suitable for military inertial navigation, high-impact testing and other high-demand fields.

1.What output mode does the quartz accelerometer adopt, and is it easy to integrate into existing systems?

Our wide-range quartz accelerometer adopts an analog current output mode, which is specifically designed to meet the integration needs of military, aerospace and industrial systems.

It is very easy to integrate into existing systems. The analog current output has strong anti-interference ability, which can avoid signal attenuation and interference during transmission, and can be directly connected to common data acquisition equipment, controllers and inertial navigation systems without complex signal conversion devices. This design simplifies the integration process, reduces the difficulty and cost of system configuration, and ensures stable and reliable data transmission between the accelerometer and the existing system, fully adapting to the rapid integration requirements of high-demand application scenarios.

2. Can the measurement range of the wide range quartz accelerometer be adjusted on site, and how to operate it?

Yes, our wide-range quartz accelerometer supports on-site adjustment of the measurement range, which is designed to enhance its flexibility for different application scenarios.

The operation is simple and convenient, requiring no professional disassembly or factory debugging. Users only need to use the matching adjustment tool to adjust the built-in adjustment knob or configure the relevant parameters through the external interface according to the actual measurement needs. The adjustment process is intuitive and efficient, and after adjustment, the accelerometer can quickly enter a stable working state, ensuring that the measurement range matches the on-site test requirements without affecting its measurement accuracy and reliability.

3. Is the quartz accelerometer equipped with a built-in temperature sensor for thermal compensation, and is it optional?

Yes, our wide-range quartz accelerometer can be equipped with a built-in temperature sensor for thermal compensation, and this function is optional according to user needs.

The built-in high-precision temperature sensor is specially used to collect real-time ambient temperature data during the accelerometer's operation. It cooperates with a professional temperature compensation algorithm to dynamically adjust the bias and scale factor of the accelerometer, thereby reducing the impact of temperature fluctuations on measurement accuracy. Users can choose whether to configure this function based on their actual application scenarios-if the accelerometer is used in environments with stable temperatures, the optional temperature sensor may not be needed; if it is used in extreme or variable temperature environments, configuring this function can ensure more stable and high-precision measurement performance.

4.What is the service life of the quartz accelerometer, and what is its failure rate under normal working conditions?

Our wide-range quartz accelerometer has excellent service life and reliability, which is fully adapted to the long-term operation needs of military, aerospace and other high-demand fields.

In terms of service life, under normal working conditions (operating within the specified temperature range of -40℃~85℃, without excessive impact, corrosion or improper operation), the service life of the product can reach 10,000 hours or more; for scenarios with more stable working environments (such as fixed precision testing equipment), its service life can even be extended to 15,000 hours. This long service life is attributed to the high-quality quartz material (with excellent mechanical stability and no fatigue characteristics) and precision hermetic sealing process, which effectively ensures long-term stable operation of internal components.

In terms of failure rate, under normal working conditions, the annual failure rate of the product is less than 0.2%, and the average mean time between failures (MTBF) can reach 1000-2000 hours for industrial-grade applications, and even higher for military-grade configurations. The low failure rate is supported by rigorous production testing, advanced closed-loop feedback design and optional temperature compensation function, which effectively reduces performance degradation and component damage caused by environmental factors and long-term operation.

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