Let us start with the term Temperature sensors- what is a temperature sensor and what are the attributes of temperature sensors are the very first questions that came into the mind of the first human minds. Back in the time when the days were either cold or hot enough to affect the human work conditions, the questions of what exactly the environment right now comes into the mind of a community of people who were in the process to understand the mother nature and its guidelines hence they discovered the word temperature to understand the causes of the environmental change, As the time passes by now the human mind developed itself to work more and more efficiently in the journey towards the future we live in.
Communities of special minds developed a few measures and terms to present the scenarios in the process of their respective researches. Hence the word temperature rises above and so are its measures.
Equipment used in the past to measure temperature was called gauges but as the civilization changed itself into the new era, the gauges changed into sensors and these sensors are now being used equally by the general public, science communities, commercial activities and in space programs.
We can categories these temperature sensors in three major categories known to us as
- Mechanical Temperature Sensors: Mechanical temperature sensors are made in the single body usually consist a temperature-sensitive substance which with its molecular changes tells the temperature conditions we can understand a great example of a mechanical temperature sensor with the help of regular thermometer which has been used very frequently by the doctors in the past.
- The thermometer has two elements, one of them being a sensor i.e. The mercury-filled in the glass tube shape and the other one being the display which is shown up on the glass surface and shows us the specific change in mercury when the temperature rises above the normal level. These temperature sensors are widely in use for meteorology and scientific researches as well as are being used by medical practitioners.
- Therm or bimetallic strip are used widely as a mechanical thermometer in specific conditions. In this process, two different metal strips work at the same time and show the heat transfer ratios in their respective body where the two of them having different molecular compositions react differently to the temperature given and expand at different rates which go both inside out or outside in depending the temperature being cool down or heated up.
- Electrical temperature sensors are the ones having no single body but are mostly used as a supportive product to care for high-end machinery systems to take control in their hands when something irregular happens or changes in temperature the best example is the Thermo sensor used by the microprocessor manufacturers to safeguard their chip from the exec heating.
- Thermistor: these are the resistors to show any change in electrical resistance. Being having a quality of thermal sensitivity PTC or Positive Temperature Coefficient thermistors exhibit both the large and precise changes of increase in an electrical resistance whereas the type NTC AKA negative temperature coefficient thermistors work in negative temperature conditions like exhibiting the decrease in resistance.
- Thermocouple: A thermocouple device usually made of two different electrical conductors and forms a kind of junction for electricity which then produces a voltage precisely dependent on temperature by the thermoelectric effect which then interprets the temperature measurement.
- Resistance Temperature Detectors: Better known as resistance thermometers these devices work as a sensor to measure temperature in their respective pure nature usually made of either nickel or copper these are plain wires wrapped around a core of nonconductors like glass or ceramic and by having a buildup resistance towards temperature they provide excellent information in temperature changes. Effective yet vulnerable properties of theses thermometers make them highly unusable without protective layers around but their accuracy and repeatability make them a better substitute for thermocouples in small appliances.
- Silicon Bandgap Temperature Sensor is widely used in electronic equipment where they work with silicon integrated circuit and measure the temperatures coming towards and thru the diode, they are coupled with silicon to emit the perfect amount of temperature which works in diodes to help cop up within a limit of 200 to 250 degrees Celsius. These are the cheapest form of electrical temperature sensors therefore the most commonly used one in all above.
- Integrated Circuit sensors are more likely can be analog or digital where it can be a Serial peripheral interface that is highly used in short distance communications being asynchronous serial communication. SPI or serial peripheral interphase develop a master-slave architecture being the single master to display thru the Liquid crystal display AKA LCD.
Exporters in particular fieldwork in all the above-mentioned methods of Temperature sensors India depending upon the nature of business and consumers demand in market places. Like in medicinal or commercial exercises where integrated sensors would work rather than the traditional mechanical sensors.