High Precision Quartz Accelerometer

The High Precision Quartz Accelerometer is a high-precision military inertial navigation grade accelerometer, which is specially designed and manufactured for the harsh working environment and high-precision measurement requirements of military equipment and high-end industrial fields. With its advanced quartz flexible sensing technology, rigorous structural design and strict quality control, the product has excellent comprehensive performance, and has become a core component in the fields of inertial navigation, attitude control, precision measurement and vibration monitoring.

 

The product integrates multiple outstanding characteristics, including excellent long-term stability, high repeatability, fast and reliable starting performance, strong environmental adaptability and high operational reliability, which can perfectly meet the application needs of both static test and dynamic test scenarios. Meanwhile, as a standard vibration sensor, it can also be widely used in vibration monitoring, shock measurement and other fields, providing high-precision data support for equipment status monitoring and fault diagnosis.

 

In terms of measurement principle and output performance, the SG-1 series adopts a high-sensitivity quartz flexible pendulum structure, which can accurately sense the tiny changes of applied force or acceleration. The output current of the product has an excellent linear relationship with the applied force or acceleration, with a linearity error of less than ±0.01% (full scale), ensuring high-precision measurement in the entire measurement range. For users, they can calculate and select an appropriate sampling resistor according to the actual measurement requirements and system configuration, so as to convert the current output into a voltage signal that is easy to collect and process, and further achieve high-precision data acquisition and analysis.

 

To solve the problem that ambient temperature changes affect the measurement accuracy, the SG-1 series can be equipped with a built-in high-precision temperature sensor according to user requirements. The temperature sensor can real-time collect the ambient temperature around the accelerometer, and cooperate with the supporting temperature compensation algorithm to dynamically compensate the bias and scale factor of the accelerometer. This compensation mechanism can effectively reduce the impact of ambient temperature fluctuations (usually in the range of -40℃~85℃, and can be extended to -55℃~125℃ for special customization) on the measurement results, ensuring that the product still maintains high measurement accuracy in extreme temperature environments.

✭ Good temperature characteristics, low noise, high precision: It has excellent temperature stability, with small bias and scale factor drift in the working temperature range (-40℃~85℃), and low output noise. The measurement precision reaches the military inertial navigation level, which can accurately sense tiny acceleration changes and ensure high-precision data output.

✭ Excellent environmental adaptability, optional temperature output: It can adapt to harsh working environments such as high and low temperature, humidity, vibration and electromagnetic interference. According to user needs, a built-in temperature sensor can be configured to output real-time temperature data, which is convenient for temperature compensation and further improves measurement accuracy.

✭ Good repeatability and high reliability: The product adopts high-quality quartz materials and precision manufacturing technology, with stable performance and good repeatability of measurement results. The hermetic sealing design ensures long-term reliable operation, with a low failure rate, which meets the high reliability requirements of military and industrial applications.

✭ Good frequency response characteristic, current output, strong anti-interference ability: It has a wide frequency response range, which can accurately capture dynamic acceleration signals in static and dynamic test scenarios. The current output mode has strong anti-interference ability, which can effectively resist electromagnetic interference and ensure stable data transmission.

✭ Small size, light weight: With a compact structure of Ф 25.4X30mm and a weight of only 80g, it is easy to install in narrow spaces such as inertial navigation systems and precision instruments, without increasing the overall weight burden of the equipment.

✭ Can be customized according to customer needs: We provide personalized customization services, which can adjust parameters such as measurement range, output mode, temperature adaptation range and interface type according to the specific application scenarios and needs of customers, to meet the diverse application requirements of different fields.

Inertial measurement of military high-precision inertial navigation systems:

It is mainly used in the inertial navigation systems of various military equipment, such as fighter jets, warships, submarines, tanks and precision guided missiles, to accurately measure linear acceleration, provide reliable data support for real-time positioning, navigation and attitude control, and ensure stable operation in harsh environments without satellite signals.

Vibration isolation testing of precision instruments and equipment

High Precision Quartz Accelerometer is Widely applied in aerospace, aviation, shipbuilding, ordnance and other fields, it is used for vibration detection and isolation testing of precision instruments and equipment, such as aerospace avionics, shipborne radar, ordnance detection equipment and aircraft engine components, so as to optimize vibration isolation design and ensure the measurement accuracy and service life of equipment.

Universal accelerometer

Standard pin definitions:

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.

The mounting hole is U-shaped.

The mounting hole is U-shaped, and the pins are 8-pin.

The overall dimension is square.

Our SG-1 Series High Precision Quartz Accelerometer stands out in the high-precision sensor field with its comprehensive advantages, making it the preferred choice for military, aerospace, aviation and other high-demand fields. The core reasons to choose us are as follows:

✭ Patented Products with Full Independent Intellectual Property Rights: The product has obtained national invention and utility model patents, with complete independent intellectual property rights, effectively avoiding intellectual property risks. Its core technology is independently developed and innovated, ensuring the uniqueness and advanced nature in the high-precision accelerometer field.

✭ Excellent Temperature Characteristics, Low Noise and High Precision: It features superior temperature stability, with small bias and scale factor drift within the working temperature range (-40℃~85℃) and low output noise. The measurement precision reaches the military inertial navigation level, enabling accurate sensing of tiny acceleration changes and stable high-precision data output.

✭ Outstanding Environmental Adaptability with Optional Temperature Output: It can adapt to harsh working environments such as high and low temperatures, humidity, vibration and electromagnetic interference. A built-in temperature sensor can be configured according to user needs to output real-time temperature data, facilitating temperature compensation and further improving measurement accuracy.

✭ Good Repeatability and High Reliability: Adopting high-quality quartz materials and precision manufacturing technology, the product boasts stable performance and excellent repeatability of measurement results. Its hermetic sealing design ensures long-term reliable operation with a low failure rate, meeting the high reliability requirements of military and industrial applications.

✭ Excellent Frequency Response, Current Output and Strong Anti-Interference Ability: It has a wide frequency response range, capable of accurately capturing dynamic acceleration signals in both static and dynamic test scenarios. The current output mode offers strong anti-interference ability, effectively resisting electromagnetic interference and ensuring stable data transmission.

✭ Small Size and Light Weight: With a compact structure of Ф 25.4X30mm and a weight of only 80g, it is easy to install in narrow spaces such as inertial navigation systems and precision instruments, without increasing the overall weight burden of the equipment.

✭ Customizable Services: We provide personalized customization services, which can adjust parameters such as measurement range, output mode, temperature adaptation range and interface type according to customers' specific application scenarios and needs, meeting diverse application requirements in different fields.

1. Core Sensing Mechanism: The quartz accelerometer adopts a quartz flexible pendulum structure, where the sensitive element is made of high-quality quartz material. When external acceleration is applied, the pendulum mass generates an inertial force under the action of inertia, causing elastic deformation of the quartz flexible beam.

2. Signal Conversion Process: The elastic deformation of the quartz flexible beam changes the capacitance between the pendulum and the fixed electrode. The internal detection circuit converts this tiny capacitance change into a current signal, realizing the conversion from mechanical acceleration to electrical signal.

3. Closed-Loop Feedback Regulation: It adopts a closed-loop control system. The output current signal is processed by the feedback circuit, which generates a feedback force to balance the inertial force of the pendulum, making the pendulum return to the equilibrium position and ensuring high measurement accuracy and stability.

4. Temperature Compensation (Optional): If equipped with a built-in temperature sensor, the sensor collects real-time ambient temperature data. The supporting algorithm dynamically compensates the bias and scale factor of the accelerometer, reducing the impact of temperature changes on measurement results.

1. What is the working temperature range of the quartz accelerometer, and how to ensure measurement accuracy under extreme temperature conditions?

The working temperature range of our SG-1 series quartz accelerometer is -40℃~85℃, and it can be customized to -55℃~125℃ for special harsh temperature scenarios.

To ensure measurement accuracy under extreme temperature conditions, we adopt two key measures: first, the sensitive element is made of high-quality quartz material with a small thermal expansion coefficient, which effectively reduces the impact of temperature changes on the structural stability of the sensor; second, the product supports optional built-in high-precision temperature sensors, which can collect real-time ambient temperature data, and cooperate with the matching temperature compensation algorithm to dynamically compensate the bias and scale factor of the accelerometer, thereby minimizing the impact of extreme temperature fluctuations on the measurement results.

2. What output mode does the quartz accelerometer adopt, and why is it designed with current output?

Our SG-1 series quartz accelerometer adopts a current output mode.

The design of current output is mainly based on the product's application scenarios and performance requirements: first, the current output has strong anti-interference ability, which can effectively resist electromagnetic interference, voltage fluctuation and signal attenuation during long-distance transmission, ensuring stable and reliable data transmission-this is particularly critical for its application in harsh environments such as military, aerospace and ordnance. Second, the output current has an excellent linear relationship with the applied acceleration, which is convenient for users to select an appropriate sampling resistor through simple calculation, convert it into a voltage signal that is easy to collect and process, and further achieve high-precision measurement output, perfectly matching the high-precision requirements of inertial navigation and vibration isolation testing.

3.What is the frequency response range of the quartz accelerometer, and can it be used for both static and dynamic tests?

The frequency response range of our SG-1 series quartz accelerometer is typically 0 Hz to 1000 Hz (customizable according to customer needs for specific application scenarios).

It can be used for both static and dynamic tests. Its wide frequency response range, starting from 0 Hz, enables accurate measurement of static acceleration (such as static tilt and constant speed motion) without signal distortion. For dynamic tests, it can stably capture dynamic acceleration signals of different frequencies, including vibration, shock and other dynamic scenarios, which fully meets the application requirements of static and dynamic measurement in military inertial navigation, precision instrument vibration isolation testing and other fields.

4.How to maintain the quartz accelerometer to ensure its long-term reliable operation?

To ensure the long-term reliable operation of the SG-1 series quartz accelerometer, the following maintenance precautions should be followed:

Installation protection: Avoid collision, impact or excessive mechanical stress during installation and disassembly, as the internal quartz flexible structure is precise and vulnerable to damage; ensure the installation is firm and aligned to prevent vibration-induced loosening.

Working environment control: Avoid using it in environments with excessive dust, corrosive gas or liquid, as these may damage the hermetic seal and internal components; keep it away from strong electromagnetic interference sources.

Regular inspection: Periodically check the connection interface for looseness or poor contact, and verify the output signal stability to detect potential faults in advance.

Storage requirements: When not in use, store it in a dry, clean environment with a temperature of -20℃~60℃ and avoid long-term exposure to extreme temperatures or humidity.

Avoid improper operation: Do not disassemble the accelerometer by yourself, as this will damage the internal precision structure and affect measurement accuracy and reliability.

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