Clock calibration device of measuring equipment and measuring equipment

The clock calibration device comprises a GPS receiver module, a programmable array logic device and a correction module, the GPS receiver module generates a pulse per second synchronization signal, the programmable array logic device carries out delay adjustment on a rising edge of the pulse per second synchronization signal to obtain a third synchronization signal, and the correction module carries out correction on the third synchronization signal; generating a synchronization pulse signal according to the second pulse synchronization signal and the third synchronization signal, calculating the time difference between the rising edge of the synchronization pulse signal and the clock edge of the counting clock signal, and determining the period of the second pulse synchronization signal based on the time difference and the period of the third synchronization signal; and finally, outputting a calibration control signal based on the difference between the period of the pulse per second synchronization signal a