What is temperature? We can define temperature as the degree of hotness and coldness of an object or an environment. We can also determine the kinetic energy of a matter by the temperature measurement. It is a scalar quantity that would help us to determine the direction of heat flow between two objects. Temperature is …
Comparison between various temperature measurement devices Read More »
What is Self-actuated Temperature regulators? The Self-Operating Temperature Regulator is a mechanically operated instrument intended to control system temperature by modulating heating or cooling fluid’s flow in reaction to changes in temperature. Construction of Self-actuated Temperature regulators: The assembly of the pipe system consists of the delicate bulb, capillary tubing, bellows assembly, dial thermometer stated, …
Self-actuated Temperature regulators basics. How does temperature regulator work? Read More »
The most common thermocouple failure method is open failure, otherwise known as “burning out.” An open thermocouple is difficult for any voltage-measuring tool with elevated input impedance because the absence of a full input circuit allows electrical noise from nearby sources (energy lines, electrical engines, variable-frequency engine drives) to be identified by the tool and …
The thermal dispersion flow switch is an accurate liquid flow sensor. The operating principle is based on the transfer of heat. The thermal dispersion flow switch comprises of two temperature sensors based on the heat transfer principle. One temperature sensor is the reference and measure the fluid temperature where the flow switch probe is immersed …
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What is Damper? A damper is a valve or plate that prevents or controls air flow within a duct, chimney, variable air volume box, air handler, or other air handling machinery. A damper can be used to cut off or control central air conditioning in an unused space. Manual & Automatic Damper: It can operate …
Why to use Pyrometers or non-contacting type? Non-contacting temperature meter or Pyrometers are used to measure temperature without any physical contact with temperature body. In many industrial application with a higher temperature range, where many other temperature meters and human can’t reach non-contacting type pyrometers are employed. They are especially suitable for measuring high temperatures that …
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Resistance Temperature Detectors (RTD) are temperature measuring transducers used in industrial applications. RTDs are simple in construction with higher accuracy and repeatability and which are used in the applications below 600°C. Principle: As the name suggests the RTDs are temperature sensitive resistors. The resistance temperature detector (RTD) measures the electrical conductivity as it varies with …
A thermistor is a semiconductor device formed from metal oxides. thermistors are used in many applications requiring information about process equipment for alarming and indication purposes. Principle: The principle of temperature measurement with a thermistor is that its resistance changes with temperature. Most thermistors differ from normal resistors in that they have a negative coefficient of …
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IN industries temperature is a major physical quantity . there are different methods of temperature measurement in industries. The different methods of temperature measurement are: 1. Mechanical 2. Electrical. 1.Mechanical methods: Mercury in glass thermometers This consists of a glass tube of very fine bore joined …
