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Related Experiment Video

Updated: Jan 31, 2026

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

A Method for Quantifying Upper Limb Performance in Daily Life Using Accelerometers

Published on: April 21, 2017

A novel method for testing accelerometer transverse sensitivity.

Yunsong Du¹, GuoHua Gao¹, Tiemin Li²

¹College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China.

The Review of Scientific Instruments

|January 3, 2019

Summary

This summary is machine-generated.

This study introduces a novel flexure-based mechanism for accurately measuring accelerometer transverse sensitivity. The developed method ensures precise trajectory control, yielding reliable results with low measurement uncertainty.

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Area of Science:

Mechanical Engineering
Instrumentation and Measurement

Background:

Transverse sensitivity is a critical parameter affecting accelerometer accuracy.
Existing methods for measuring transverse sensitivity may have limitations in precision or complexity.

Purpose of the Study:

To present a novel flexure-based compliant mechanism for accelerometer transverse sensitivity testing.
To analyze the theoretical principle and validate the feasibility of the proposed method.

Main Methods:

Development of a flexure-based compliant mechanism.
Theoretical analysis and modeling of the measurement principle.
Prototype manufacturing and experimental setup.
Circular trajectory tests for feasibility verification.
Testing of a three-axis piezoelectric accelerometer.

Main Results:

The developed mechanism ensures high precision in circular trajectory generation.
The maximum transverse sensitivity measured was below 5%.
Maximum measurement uncertainty for transverse sensitivity was 0.15%.
Maximum measurement uncertainty for the direction angle was 0.79°.

Conclusions:

The proposed flexure-based compliant mechanism provides a reasonable and accurate method for testing accelerometer transverse sensitivity.
The experimental results validate the effectiveness and precision of the developed system.