The NAMUR working group 3.11 (pressure and temperature) was a guest at WIKA. NAMUR are an international user association of automation technology and digitalisation in the process industry. The NAMUR working group started its two-day visit with a highlight: a …
Temperature
Measuring the response times of electrical thermometers
Joachim Brückner | Know-howThere are many reasons for using electrical thermometers with short response times: optimisation of the efficiency, more efficient utilisation of the working range of a process, avoidance of thermal overload of the process medium. But how are response times measured, …
Not the same: temperature range and temperature limit
Michèle Beyer | Know-howTemperature range and temperature limit for pressure sensors – is there a difference? My intuitive answer would be: Yes! The first term describes a section and the second its border. On second glance, however, I have to conclude that both words ultimately express the …
Diaphragm seals for stable flow measurement in deep seas
Jing Lyu | ApplicationsDiaphragm seals make it possible to adapt measuring instruments to even the most extreme conditions. One example is the deep-sea extraction of oil and natural gas. For offshore companies in this industry, a particular OEM company manufactures flow measuring systems …
Temperature calibration: Thermocouples vs. resistance thermometers
Katja Strecke | Know-howIn temperature calibration, high demands are placed on reference thermometers in terms of accuracy and reproducibility and thus long-term stability. Therefore, RTDs (“resistance temperature detectors”) – here specifically platinum resistance thermometers – and …