How to calculate the frequency of a sine signal is very confusing. I use msp430F449 to collect 250 data, and the sampling period follows the Nyquist theorem. The collected data is used to calculate th
I got the board almost a month ago. I had some time to play with it during the Spring Festival holiday, but it still took some time to burn the firmware of the board.The main control of Pengfeng Techn
Are there any seniors in geotechnical engineering who can help me with the soil resistivity measurement problem? Currently, the industry generally uses the quadrupole method to measure soil resistivit
Both thermocouples and thermal resistors are contact temperature measurement. Although they have the same function of measuring the temperature of an object, their principles and characteristics are d
When hardware engineers first come into contact with multi-layer PCBs, it is easy to feel dizzy. There are often ten or eight layers, and the circuits are like spider webs.Draw several diagrams of the