Design And Research Of Home Fast Gas Heater/Dual-purpose Stove Testboard Control System

This text introduced a testing system for home fast gas heater /dual-purpose stove. The design of this system is according to national standard GB/6932-2001《the home gas apparatus test standards》.The purpose to develop this test system is to raise the present measuring level of home fast gas heater /dual-purpose stove. It is useful for manufactories and quality supervisory departments to do the test more quickly and conveniently, so that the safe and reassuring products will be put in the market. In the circuit design , adopted currently advanced temperature,pressure and flow sensors and the digital processing method to sample various kinds of parameters; used A/D convertions--ICL7135/CS5511 to collect the temperature/pressure data respectively; using currently popular RS-485 serial bus combined with SCM techniques and mocrocomputer to realize the communications between host computer and PC. This testing system realized the automatic testing for home fast gas heater/dual-purpose stove.In the beginning of the text, introduced the national standard for testing the home gas heater/ dual-purpose stove, and described the complete structure of the test system, and then, researched the method to correct the non-linear error and the methods to test the temperature, pressure and flow. In the part of software programming, introduced the method to utilize Windows API function to operate the serial interface in C ++ Builder 6.0 development environments and wrote the program for the test system.In the end, the summarization and prospect is given.