Quartz Flexible Accelerometer VS MEMS Accelerometer, which one is better?

Quartz Flexible Accelerometer VS MEMS Accelerometer

Quartz accelerometer: 4 Key Performance Indicators China Professional Quartz Accelerometers supplier-Hitech Sensors Tech Co., Ltd

1. Sensitivity: The sensitivity of a quartz accelerometer refers to the ratio between the electrical output and the mechanical input of the sensor, usually expressed in mV/g or pC/g. Sensitivity is valid at a certain frequency point, usually 100Hz, and within a certain temperature range, usually 25±5°C. The allowable error range of sensitivity is usually ±5% or 10%, which ensures that the sensitivity of the accelerometer used by the user is within the allowable error range of the nominal value‌.

2. ‌Linearity‌: Amplitude linearity of quartz acccelerometer is used to measure the linearity of the output of the accelerometer within a specified amplitude range. Ideally, the sensitivity output of the accelerometer at any amplitude point within the specified amplitude range should be exactly the same, but there will be deviations in actual situations. Amplitude linearity defines the limit of the deviation between the output of the accelerometer and the ideal linearity, usually ±1% of the entire range‌.

3. ‌Frequency response‌: Frequency of quartz accelerometer response refers to the response characteristics of the accelerometer at different frequencies. An ideal accelerometer should have a good response at all frequencies, but in reality, the frequency response of the accelerometer is limited, especially at high frequencies.‌ 

4. Temperature stability‌: The temperature stability of a quartz accelerometer refers to its performance changes at different temperatures. Since most accelerometers are affected by temperature, the sensitivity is only valid within a very narrow temperature range, usually 25±5°C. Temperature changes will cause changes in capacitance, which in turn affects the accuracy of the accelerometer.‌

MEMS Accelerometer Chips: TOP 3 Key Performance Indicators China Professional MEMS Accelerometers supplier-Hitech Sensors Tech Co., Ltd

1. Measurement Range: A suitable measurement range (2~700g)

Ensure that the sensors can withstand various forces in the applications ranging from consumer electronics to aerospace.

2. Bias Stability (@10s): The stability of the accelerometer’s zero bias over time. (20 μg @10s)

Ensuring long-term stability and accuracy is crucial for inertial navigation and high accurate applications.

3. Noise Density: The noise in the output per unit bandwidth of an accelerometer.

This specification determines the sensitivity and accuracy of the accelerometer and is particularly important for applications requiring low noise performance.

Quartz Flexible Accelerometer VS MEMS Accelerometer, which one is better?

Quartz flexible accelerometers: which provide a high-performance solution for acceleration measurement in a wide range of applications. Its unique design combined with quartz crystals provides excellent sensitivity, board frequency range, noise suppression, and temperature stability. Quartz accelerometers’ superior accuracy and temperature stability make them the preferred choice for the highest precision applications in aerospace, defense, and scientific research. Their unmatched durability and stability in extreme conditions make them ideal for geophysical research, military-grade instrumentation, and space missions. 

MEMS Accelerometers: With the innovation of MEMS technology, these accelerometers are not only widely used in consumer electronics but have also become an integral part of the military, aerospace, and industrial sectors. They are widely used in MEMS IMUs (Inertial Measurement Units) to provide a compact-size, low-power consumption and low cost solution without compromising product performance. When integrated into a MEMS IMU, MEMS accelerometers can provide high accurate inertial navigation, inertial guidance, and control systems forautonomous vehicles, drones, space exploration and missile guidance systems.