Design of Handheld Thickness Measuring Instrument System Based on Laser Ranging

In order to measure thickness of plates or tubes in industrial production，a thickness measurement technology based on laser reflection ranging was proposed to measure thickness of bamboo plates or tubes with different thicknesses.It could also be applied to measure thickness of plates and tubes in other industrial production.Based on Kalman filter algorithm to solve problem of data jitter caused by handheld process.At the same time，wireless communication function was used to upload measured data to nearby service station for storage，which was conducive to integration and development of device in the next step.Actual experiment showed that maximum error was 1.5% and average error was less than 1.0%.The system could measure thickness of bamboo tube with low cost，high efficiency，high precision and no contact.