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Accelerometer Specifications Interpretation

An accelerometer is an instrument used to measure the acceleration of an object. It has a wide range of applications in many fields, including aerospace, automotive engineering, and sports medicine.

Accelerometer Specifications Interpretation

1. Sensitivity: For an instrument, generally the higher the sensitivity is, the better, because the more sensitive, the more easily the change of the acceleration that occurs to the surrounding environment, the acceleration changes greatly, naturally, the voltage of the output The change also becomes larger accordingly, so that the measurement is easier and more convenient, and the measured data is also more accurate.Ericco's quartz accelerometer ER-QA-03A has a scaling factor of 15-50ppm, bias repeatability is 10-50μg and Class II non-linearity repeatability is 10-30μg/g2.

2. Bandwidth: Bandwidth refers to the effective frequency band that the sensor can measure. For example, a sensor with hundreds of HZ bandwidth can measure vibration; a sensor with 50 Hz bandwidth can effectively measure the inclination.

3. Range: The range required to measure the movement of different things is not the same. It should be measured according to the actual situation.The measuring range of the accelerometer is usually in the unit of gravitational acceleration (g), and the common range is +2g, +4g, +8g, etc. This means that an accelerometer can measure the acceleration of an object in any direction, whether it is negative (deceleration) or positive (acceleration).As a wide range accelerometer ER-QA-03B’s capable of measuring up to ±70g.

4.Measurement accuracy: It is also an important technical specification. Measurement accuracy is usually expressed in terms of displacement error or percentage error. For example, an accelerometer with an accuracy of +0.1g means that its measurement is within +0.1g of the true value. The higher the accuracy, the more accurate the measurement results.

5.Response time: Also a key metric. Response time refers to the time it takes for the accelerometer to receive a change in acceleration to produce a stable result. In general, the shorter the response time, the better, because it means the accelerometer can detect the acceleration change more quickly.

6.Resolution: refers to the minimum amount of acceleration change that the accelerometer can detect. For example, an accelerometer with a resolution of 0.01g can detect a change in acceleration of 0.01g. The higher the resolution, the smaller the acceleration changes the accelerometer can detect.

7.Operating temperature range: refers to the temperature range in which the accelerometer can work normally. In some special applications, the accelerometer may need to operate in extreme temperature environments, so the operating temperature range is a factor to consider.

8.Sampling rate: refers to the number of times the accelerometer takes samples per second. The higher the sampling rate, the more detailed information the accelerometer can provide about the acceleration change.

The technical specifications of the accelerometer include measurement range, measurement accuracy, response time, resolution, sampling rate, operating temperature range and interface type. These technical specifications determine the performance and reliability of the accelerometer in different application scenarios. When selecting and using accelerometers, we need to weigh these technical specifications according to the specific needs to obtain the best measurement results and performance.

If you want to get more details about accelerometer,pls visit https://www.ericcointernational.com/accelerometer/

For more information, please feel free to contact info@ericcointernational.com

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