With the development of the science and technology, we have higher requirement of some dates collecting in the industry, this also applies to the temperature. Previously we use some impotents like thermograph detecting the temperature, but with the development of science and technology, the old means can not satisfy our needs, because the average thermograph must directly contact the measured substances, we must design some test equipments, which can measure the temperature without contacting the measured substances.
The system improves the function intellect and ability the function of quick and the function of practical using of the temperature testing, we use the non-contacting sensing technique, the system of data collecting.89C51 is used as the CPU; the clock system adopts DS12887 ;the storage unit. Employs the AT24C02.The system displays eight bit, four of which is used for displaying temperature and the others is used for displaying time. We also design warm-up system. When the temperature is over the measure range the system will give an alarm. This design has high performance price rate and reduces the cost and complex of the design to a certain extent.
Keywords: non-contacting、 temperature measuring、89C51、give an alarm、eight digital display
