Hall Effect Gear Tooth Sensors Improvement

In this paper, in view of the actual measurement of the Hall Effect gear tooth sensor (Hall Effect GTSs), a measurement system is established. Through the study, a reasonable, appropriate mathematical model is proposed, including the signal phase drift and the duty cycle of speed measurement system´s output signals. The experimental results show that, the mathematical model is very effective to determine the parameters for the design and development of speed measurement system. This paper also studied the sensor structure based on mathematical model of the optimization; in order to improve the sensing distance of Hall Effect GTSs. The improved sensor, dual output Hall Effect gear tooth sensor CYGTS104X, is equally suitable for the description of the mathematical model in this paper. And the application examples of measurements prove that the improved sensor has a greater sensing distance than the same type of Hall Effect GTSs which is produced by Honeywell.