Infrared (IR) thermometers or pyrometers are portable and non-contact devices designed to measure the surface temperature of various objects (including individuals) using integrated sensors by analyzing the thermal radiation of objects. These devices also feature lenses that focus the IR energy onto detectors and convert it into electrical waveforms displayed as temperature units.
Moreover, due to their non-contact temperature measurement, they are widely favored as alternatives to other common thermocouple sensors in various environments. Furthermore, they offer quick measurement and come as thermal imagers or handheld infrared gun thermometers for aiming purposes.
How Do They Work?
The IR thermometers carry out the measurement in an uncomplicated way, even in microseconds, though it looks complex. An IR thermometer features a lens designed to collect IR energy from objects, funneling it towards integrated detectors (thermopiles). The IR energy is then converted into electrical signals and displayed on the thermometer’s screens for reading.
When are Infrared Thermometers Ideal?
Infrared temperature measurement is best in situations where:
- Objects are hard to reach.
- Things are too hot and resist touching.
- Materials that are wet, soft, scratchable, or torn by contacting thermometers.
- Objects need complete hygienic conditions.
- Substances that pose threats through touch
- Objects require efficient measurement.
- Objects are moving.
Important Selection Criteria for Infrared Thermometers:
There are various crucial considerations for any infrared thermometer, including:
- Accuracy
- Environment
- Field of View, i.e., target size and distance
- Response Time
- Mounting Limitations
- Measured Surface Type
- Spectral Response
- LCD Screens
- Desired Signal Processing.
Where are Infrared Thermometers Used?
The non-contact IR thermometers cover multiple ranges of applications in various sectors, including:
- Food Safety
- Fire Safety
- Agriculture
- House Inspections
- HVAC Installation
- Automotive Industries
- Refrigeration
- Restaurants
- Mechanical Maintenance
- Electrical Maintenance
- Medical (Fever Screening)
- Heating & Air Conditioning.
