As a measuring instrument, RLC meas

As a measuring instrument, RLC measuring accuracy is an important index. In the actual circuit, due to environmental factors, there will be more or less some accidental errors, not to achieve the simulation circuit measured high accuracy of data, affecting the final result. In addition to some accidental errors, the RLC gauge also has system errors caused by internal fixed offsets, some stray parameters at the input end, and the sloping wave components in the test signal source. In order to improve the accuracy of the RLC measuring instrument, some methods can be used to reduce the error, mainly can be divided into fixed offset processing, open circuit, short circuit calibration, random error processing.Before debugging, use a multiple-purpose meter to detect whether the line is open or shorted. After checking the connectivity of the circuit, plug in the chip, burn the program, if the circuit does not work properly, to find the cause from all aspects, such as chips, capacitors, light-emitting diodes and other devices positive and negative pole is plugged in, whether there is virtual welding, open circuit and short circuit phenomenon. The first debugging, the light-emitting tube light-emitting abnormal, can not determine whether the power supply is normal to the chip. After a universal check, it was found that the light-emitting tube is bad, immediately replaced with a good light-emitting tube. After successfully debugging the program on the lab board, burn the program to your own board.