Aiming at problem that test environment of counter-blow hammer energy in forging industry is worse

traditional testing methods exist poor real-time

low precision

complex operations and other problems

design a new counte-blow hammer energy wireless measurement instrument which measurement system compose by the host and slave. Host installed in the control center

slave installed on the hammer

and the slave hardware platform includes embedded ARM7 processor

low power consumption STM32 and 433 M wireless module SI4432. Piezoelectric accelerometer sensor and charge amplifier is chosen for collecting acceleration values

a high-speed train ADS8325 is used to collect the real-time speed acceleration values and obtain the acceleration change curve during the blow.Then

the maximum blow force and blow energy is calculated

the data is transmit to the host wirelessly. Field test shows that the measurement precision of blow energy is 1 %

the wireless transmission distance is 100 m

the display time of data updating is once every 0. 5 s

and the instrument meets the requirements of the actual test.