Virtual Instrument Design of Encoder Automatically Detection Process
In order to improve the method of conventional manual detection for encoder,an encoder auto-detection system based on LabVIEW platform was proposed.Direct comparison method was used in this system to detection encoder;data was transported by RS-232 serial port;using a 24-bit high precision photoelectric encoder as angle benchmark;rotary table position can be automatically controlled by stepper motor;to eliminate system error,angles were detected as many as possible.Automatic recording data,error analysis,drawing error curve,data store of detection encoder can be accomplished by this system.Results of application in practice show that this system can automatically detect the error of any kinds of encoder up to 18-bit,it has the advantages of simple operate and high reliability.Compared with tradition manual detection,auto-detection system eliminates error of reading by human and manual positioning,increasing of efficiency is about 3 times.