#Five major application scenarios of infrared thermal imaging in industrial testing, the third one that many people cannot imagine
>Application scenario | Approximately 1150 words
In 2024, a production line of a large manufacturing enterprise was shut down for 3 hours due to overheating of motor bearings, resulting in a direct loss of over 500000 yuan. After a retrospective review, it was found that if a thermal imaging instrument had been used to inspect the bearing at 120 ℃ 48 hours before the malfunction, the abnormal temperature would have been detected long ago - but their inspection method at that time was still "hand touch+eye view".
Infrared thermal imaging is not a new technology, but its penetration rate in industrial testing is much lower than you imagine. Many factories' equipment maintenance is still at the stage of "repairing when it breaks down" rather than "predicting faults based on temperature". The following five scenarios, any of which may help you save a considerable amount of downtime losses.
1. Power inspection: Without contact, at a glance, hot spots will appear
Poor contact between the wiring terminals, circuit breakers, and busbar connectors in the distribution cabinet can cause abnormal heating. Traditional inspections rely on electricians tightening screws and using temperature guns to measure one by one, which is inefficient and prone to missed inspections.
The thermal imaging instrument scans every few meters, and the temperature distribution of the entire distribution cabinet is clear at a glance. The normal temperature is 35 ℃, and a certain joint is 80 ℃ - the color difference can be seen at a glance. State Grid and Southern Power Grid have incorporated infrared inspection into their standard operating procedures, especially for key nodes in substations, which can achieve live detection without tripping, power outage, or contact.
2. Equipment predictive maintenance: repair before faults occur
It is usually not an instant for a large equipment to go from normal operation to complete damage. Before the occurrence of motor bearing wear, lubricating oil failure, pipeline blockage, etc., local temperature anomalies will first appear.
For example, when a water pump motor is running normally, the shell temperature is 60 ℃. If the bearings start to wear out and friction increases, the temperature may slowly rise to 80 ℃ or 90 ℃. After establishing a temperature baseline, setting a threshold (such as triggering an alarm if the baseline temperature exceeds 20 ℃) can arrange maintenance before the equipment actually breaks down. Transforming 'repair after failure' into 'predictive maintenance' can reduce downtime by 30% -50%.
3. Building inspection: Your roof is leaking, and thermal imaging can detect it earlier than the eyes
Many non professionals did not anticipate this scene. If there is leakage in the waterproof layer of the roof, water will seep in and change the thermal conductivity of the material. After being exposed to sunlight, there will be a temperature difference of 1-3 ℃ between the dry and wet areas. It cannot be seen with the naked eye, but when captured by a thermal imaging camera, the wet area appears as a patch of different colors.
The same principle also applies to the detection of exterior wall hollowing, leak detection of underfloor heating pipelines, and evaluation of door and window sealing. For building inspection companies, thermal imaging is already a standard tool - without knocking on walls or making holes, standing on the ground and scanning once can locate problem areas.
4. Fire monitoring: able to 'see' the fire source behind the smoke
The traditional smoke detectors in large space buildings (warehouses, workshops, shopping malls) have a fatal flaw: by the time the smoke concentration is high enough to trigger an alarm, the fire has already burned for a while.
Infrared thermography can detect abnormal temperature increases and issue warnings before open flames appear. More importantly, thermal imaging does not rely on visible light, and the location and range of high-temperature areas can still be seen clearly in thick smoke. Thermal imaging has become a standard payload in firefighting robots and unmanned aerial vehicle firefighting reconnaissance.
5. Medical assistance: Skin temperature distribution can also be diagnosed
The surface temperature distribution of the human body is closely related to subcutaneous blood circulation. The inflamed area will heat up locally due to increased blood flow, while the blocked area of blood vessels will cool down. Medical thermography is becoming a non-invasive diagnostic tool in areas such as breast disease, peripheral neuropathy, and burn depth assessment.
Although it is not the primary tool to replace CT or MRI, the non radiative, non-contact, and low-cost characteristics of thermal imaging make it very suitable as a screening tool.
##From 'seeing temperature' to 'using temperature effectively'
The above five scenarios have one thing in common: the value of thermal imaging lies not in how clear the image is, but in whether you can turn temperature data into effective decision-making basis. For example, in equipment predictive maintenance, the key lies in establishing temperature baselines, setting alarm thresholds, and forming a closed-loop inspection process, rather than just buying an expensive instrument.
Shiduan Wei Technology continues to invest in the fields of infrared thermal imaging modules and industrial cameras, providing customized services from thermal imaging sensors to complete detection solutions, covering scenarios such as power, industry, and healthcare. If you are exploring the implementation of thermal imaging in your own business, please feel free to talk to us about your actual needs.
To learn more about industrial imaging solutions, please visit the official website of V-Well.