This section provides an overview for thermometer probes as well as their applications and principles. Also, please take a look at the list of 9 thermometer probe manufacturers and their company rankings.
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A thermometer probe is a metal sensor that is a component of a thermometer. Temperature is measured by bringing the tip of the probe into contact with the substance (e.g., liquid) to be measured.
There are several types of thermometer sensors, the largest classification being contact or non-contact.
Non-contact thermometers measure temperature based on the amount of infrared radiation, and are further divided into thermal and quantum thermometers based on the principle of measurement.
Contact-type thermometers include thermistors, resistance thermometers, thermocouples, and mercury/alcohol thermometers.
Thermometer probes are usually connected to the thermometer itself. The measurement range varies depending on the type of probe which is selected according to the application.
Thermistors have a narrow measurement range of -50°C to 300°C, while resistance thermometers have a measurement range of -200°C to 800°C. Thermocouples have a wider measurement range of -200°C to 2000°C.
Since the probe is long and narrow, it can be used to measure the temperature of liquid products in food factories, etc., or to measure the internal temperature of frozen meat by inserting it into the meat.
The principle of a thermometer probe varies depending on its type. Thermistors make use of the property of semiconductors that their resistance value changes greatly in response to changes in temperature to make measurements. The resistance value increases at low temperatures and decreases at high temperatures, but the change in resistance with temperature is nonlinear. Although it has other weaknesses, such as poor measurement accuracy and vulnerability to shock, it has the advantage of being about 10 times more sensitive than platinum resistive elements and is widely used in practical applications. There are two types of temperature-sensitive elements: NTC and PTC. NTC is used for temperature measurement, while PTC is used for temperature sensors of constant temperature, etc.
One of the requirements for metals used in resistance thermometers is good linearity between the resistance value of the metal and the temperature, and platinum is the metal that meets this requirement. Platinum is also highly stable and can be used over a wide range of temperatures, but it is expensive and has the disadvantage of a slow thermal response. The linearity between the electrical resistance of high-purity platinum and temperature is used to measure temperature.
Thermocouples use the Seebeck effect. This is a mechanism whereby when two metals are joined together, a thermoelectromotive force is generated by keeping the two junction points at different temperatures. It is relatively inexpensive, has a fast thermal response, is highly accurate, and can measure high temperatures, among other features. The types of metals used include a combination of nickel-chromium alloy and nickel-aluminum alloy, and a combination of platinum-rhodium and platinum.
*Including some distributors, etc.
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Pyromation began operations in 1962 and operates out of Fort Wayne, Indiana. Pyromation is a manufacturer of RTD temperature sensors, thermocouples, and thermowells. Pyromation serves the aerospace, aggregate, chemical, energy and power, food and beverage, heat treating, HVAC, incineration, medical, metal processing, mining, oil and gas, pharmaceutical, plastics, rubber, and waste/water industries. Pyromation’s product lines include thermocouples, RTDs, thermowells, transmitters, connection heads, wire, and accessories. Pyromation also offers application assistance, calibration, training, and custom design services.
Endress+Hauser Group is based in Switzerland and has over 15,000 employees worldwide. Endress+Hauser manufactures measurement instrumentation and provides services for industrial process engineering. Endress+Hauser’s customers come from various industries including chemical, life sciences, energy, and water. Endress+Hauser’s products include those for level measurement, pressure measurement, software, industrial communication technologies, and liquid analysis. Endress+Hauser also offers services including project and commissioning, support and education, maintenance, and performance optimization. The company has an assortment of online tools to assist customers in services such as product selection.
Ranking as of March 2023 in United States of AmericaDerivation Method
|3||Crate and Barrel||12.5%|
Ranking as of March 2023 GloballyDerivation Method
|3||Crate and Barrel||12.5%|
Derivation MethodThe ranking is calculated based on the click share within the thermometer probe page as of March 2023. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.
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