Component temperatures in electronics need to be monitored regularly to maintain functions in devices. Manufacturers have produced a series of methods that can be used for quickly measuring component temperatures over time. The two main ways that manufacturers are measuring component temperatures include:
Thermocouple Technology
A thermocouple is considered to be one of the best solutions for measuring devices in enclosed electrical solutions. Thermocouples may on occasion pick up electrical noise but they can be calibrated into a cold junction format. The wires of the thermocouple can be formed into a disk and this can reduce temperatures as well as make sure that the device can be measured at considerably colder temperatures. Thermocouples can come in several different formats including the type K, T, and N thermocouple ranges. When using these types of devices it’s important to attach it tightly to the device that is under test as well as using adequate clips to make sure that it does not move during operation. Proper fastening of the thermocouple is a required action for any type of electronic device that’s going to be moving such as on locomotives.
A thermocouple is usually applied to an electronic device at what’s called a quiet point. These are areas where the voltage of the test of the AC ground and it stands as an excellent way to measure the temperature components at switching points. Measuring the temperature of these components where they will pick up less noise can make sure that the circuits can be appropriately monitored and that the equipment is functioning under proper isolation.
Optical Temperature Cameras
IR is often an excellent method that many manufacturers are using to monitor hotspots within electronic devices. IR thermometers can have their errors however. There are often shadowed parts to any device which can change the thermal impedance towards the junction. It’s not recommended to use an IR thermometer or camera for any type of final temperature measurement it can be a great indication of an early problem.
Most optical temperature cameras or IR cameras are focused in on the thermal impedance at the junction. This can remove the errors in reporting as well as make sure that the camera is capturing the most relevant site for temperature spikes.
If you would like to learn more about monitoring temperature within electronic devices, contact us today and we can recommend the best testing methods for your needs.