The invention discloses a
transient temperature measuring
system for a
diesel engine piston and a measuring method thereof. The
system comprises a data acquiring, amplifying and transmitting device, a
signal receiving device, a computer, a temperature measuring screw and a compensating lead, wherein the temperature measuring screw is connected with the data acquiring, amplifying and transmitting device through the compensating lead; the data acquiring, amplifying and transmitting device is connected with the
signal receiving device through a
wireless transmission
signal; and the upper end face of the temperature measuring screw is provided with a film
thermocouple. The method comprises the following steps of: making a
mask and a
mask clamp; making a temperature measuring screw; installing; and measuring. According to the measuring
system, temperature is measured by using an advanced film
thermocouple preparation technology, so that short dynamic
response time is ensured, high temperature measuring accuracy is realized, and
continuous measurement can be performed. Meanwhile, a small screw structure is adopted, and a sensor is easy to manufacture and can be placed on the
piston easily; and the
transient temperature measuring system is simple in structure, is convenient to replace, and can be produced in a standard way. Due to the adoption of the
transient temperature measuring system and the measuring method thereof, the problems of
temperature testing of the
diesel engine piston in a severe
working environment and the problem of lead connection of the film
thermocouple are solved.