Before starting off with the types of temperature sensors, let’s discuss what temperature sensors are and how do they work. A temperature sensor as the name suggests helps in maintaining a certain temperature under any circumstances. These come in handy in cases where you require a fixed temperature like drug production, or production of any other chemical, etc.
To make sure the temperature sensors do not get overheated themselves, they are made out preventive materials that are reliable and do not cause any inconvenience. The best thing about this piece of technology is that they are absolutely inexpensive and can be easily made. Temperature sensors are intelligent objects that notify the system of any change in the surrounding temperature and sometimes even have the ability to control the temperature if needed.
Types of temperature sensors:
While choosing the right temperature sensor, you would come across many technicalities that you wouldn’t know about. This is why we are here to guide you through it all. Thermocouples are the most common temperature sensors. They are nothing but two separate wires connected to give out a voltage that is similar to the room temperature. According to the circuits and products used in this appliance, you can choose it for low-cost devices that should be easy to use.
The devices that produce low voltage are usually disliked for their loud noise and disturbance. There are many methods that are used to reduce this noise which is easy to apply as well.
- Semi-conductors sensors:
The temperature sensors that work on the principle of semiconductors are also a common choice in the market today. They produce a good amount of voltage and maintain the value according to the temperature around. You can expect them to work proportionally with the temperature of the room or the temperature you have set for them. They work great in maintaining a range of temperature. You can choose them if you are short of money or you have some specific temperature in mind.
- RTD sensor:
This type of temperature sensor has a resistance that increases with the temperature around it. To measure the resistance that has been put out, the device lets a flowing current through it so that the voltage running the current is known. This is also used to calculate the temperature for the system which could be recorded. You can consider these devices when you need a highly précised result and the temperature window is fairly narrow.
The working principle of a thermistor is similar to that of an RTD sensor; changes resistance with a change in temperature, but the resistance does not increase proportionally. Because of this characteristic, they are able to give out values that are very precise and accurate with very low chances of errors. However, they are able to do so only over a certain temperature. You can use this device in case you need high precision values without worrying about the costs.
While buying temperature sensors, make sure to consider these … Read More