Method for automatic testing linear pointer instrument and recording treatment

Abstract

The invention relates to a linear pointer-typed instrument with automatic testing and a method for recording the processing; the linear pointer-typed instrument comprises a testing meter of the instrument; the testing meter comprises a sensor (1) which passes through a signal processing amplifier and transmitter (2) and then is input into a CPU (3); the CPU is further connected with a manual input device (5), a display device (7), a storage (8) that is used for storing all testing data and a data output interface (9). The method comprises the following steps: step one, the testing meter is adjusted just to a check point value of a test object to be examined according to an indicated value of the test object, which means that a pointer of the test object points just at a check point P for checking a value N; step two, a testing command key is pressed, thus leading the testing meter to automatically record the value N of the testing point P of the sensor; step three, the value N of the testing point P which is acquired from the testing is automatically calibrated according to the linear relationship between the testing meter and the sensor, and the testing result is stored.

Description

technical field [0001] The invention relates to a test method for a pointer instrument, in particular to a test method for a pointer instrument with a linear relationship. Background technique [0002] In various industries, people use a large number of pointer instruments, such as pressure gauges widely used in chemical industry, electric power, metallurgy, water supply and other departments; and hundreds of millions of instruments such as voltmeters and ammeters widely used in power departments and many factories: Pressure gauge, voltmeter, ammeter, etc. These instruments play a huge role in their respective positions and promote the rapid development of human society. How to ensure the accuracy of these instruments, generally speaking, their accuracy, that is, to ensure the reliable and safe operation of their systems, has become one of the important tasks and tasks of people. Because the performance of these instruments directly affects the reliable and safe operation ...

AI Technical Summary

Problems solved by technology

[0003] The current method of calibrating these instruments can only be calibrated by traditional methods, that is, using the reading comparison method between the precision meter and the meter to be tested. The problems with this method are: it is difficult to test accurately, and the data needs to be recorded with a pen Next, if you want to process the data, you need to manually or input it into the computer to process it, which is very troublesome

[0004] From the above, it can be seen that the calibration of these instruments can only be calibrated by traditional methods, and it is difficult to test accurately, because the reading judgment is due to human factors, and it often happens that the pointer is on the non-scale line, which depends entirely on human estimation. People often have different results; at present, there are some test instruments that can be read in the market, which eliminates the above-mentioned errors. However, if these instruments want to process data, the data must be recorded with a pen, and the data can be recorded manually or re-entered into the computer. It is still very troublesome to process

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