Resistance Temperature Detector Suppliers In Egypt

A Resistance Temperature Detector (RTD) is a passive instrument designed to measure temperature by linking the resistance of its element to the temperature itself. To determine the sensor's resistance, external electronic devices pass a small electrical current through the RTD. The operating principle of Resistance Temperature Detectors (RTDs) revolves around the relationship between temperature and electrical resistance. These sensors measure temperature by correlating the change in resistance of a metal, typically platinum, with temperature variations. As the temperature increases, the resistance of the metal also rises, allowing for precise temperature readings. RTDs are widely used in various applications due to their accuracy and stability.

Every material has atoms in it and all atoms have some energy to which it vibrates slightly when a battery is connected to a conductor current flows through the conductor. Since the flow of current is due to the flow of electrons, these electrons frequently collide with vibrating atoms of the conductor, these collision increase the speed of electrons. This property of a material due to which it opposes the flow of current through it is called resistance.

Now when the conductor is heated, the atoms of the conductors absorb the heat energy resulting in the increase of vibration resulting in the collision of electrons with atoms. So it becomes very difficult for electrons to move across the conductor and hence the resulting output current decreases. An RTD works solely on this principle of measurement which is based on the concept that the resistance of material changing with temperature. With the increase of temperature in the metal the metal resistance to the flow of electricity also rises up.