Measuring and controlling temperature can the most important parameter in many production processes. It’s not only the temperature sensors that are important, but how they are protected by thermowells. Wikipedia has a good definition of what thermowells are: Thermowells are tubular fittings used to protect temperature sensors installed in industrial processes. A thermowell consists of […]
Let’s continue our series of posts on the educational temperature measurement videos from Emerson’s team managing the Rosemount brand of products and services. You can find the complete set of videos on the Temperature Insights page. Thermowells shield thermocouples and RTD sensors from direct contact with the process. This 4:30 YouTube video, Thermowell Selection, highlights […]
Back in 1974, the ASME (founded as the American Society of Mechanical Engineers) published a performance technology standard for thermowell calculations as well as overall temperature measurement best practices, PTC 19.3. Based on decades of industry and research data, the updated PTC 19.3 TW-2010: …incorporates the latest theory in the areas of natural frequency, Strouhal […]
A few weeks ago, I highlighted the issue of resonance and thermowells in a post, New Thermowell Calculations Help Avoid Damaging Resonance. Thermowells are the circular cylinder installed like a cantilever into process piping. The temperature sensor goes into the thermowell, to be able to measure the temperature of the fluid in the pipe without […]
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