The application of yaw sensor for measuring carriage system
Laser interferometers have generally been used for the angular measurement of measuring tape calibration systems. Yaw error measurements using a yaw sensor have been carried out to determine the characteristics of yaw errors and analyze the behaviors of the structural guide. The yaw sensor technique is identical to the error compensation used in a measuring tape calibration, and also has some special parameters. However, the yaw error observation period is very short, but it is sufficiently accurate for a carriage yaw sensor. This paper presents the yaw sensor innovation for the measuring carriage application that would be compensated by using yaw error is approximately minimized to 65 arcsec and its repeatability is less than 30arcsec.
Measurement Uncertainty Evaluation for Yaw Error Reduction
Abstract— The previous research compared the yaw measurement error between a rotary encoder and a couple of single beam laser (CSL) module, that those result emphasized only repeatability of yaw measurement error. In order to complete correspondingly with the metrological algorithm. This research presents the measurement uncertainty evaluation of yaw measurement error with the CSL module that based on the guide to the expression of uncertainty in measurement. The measurement uncertainty of the CSL module calibration is 12.30 arcsec.
Representation of systems disturbed by wide band noise
In this paper, a method of handling and working with wide band noise is developed. We represent wide band noise as a distributed delay of white noise and use it to reduce a nonlinear system disturbed by wide band noise to a nonlinear system disturbed by white noise. An application of this reduction to a nonlinear filtering problem under a wide band noise disturbance is discussed.