Process measurement technology

Process measurement technology is the measurement technology in technical processes , especially in process engineering . The process measurement technology is part of the MSR technology . In contrast, production metrology is metrology in production technology .

purpose

The measuring devices of the process measurement technology are used to control and regulate the technical processes and, if necessary, to monitor them by state supervisory authorities.

They typically measure the flow rate, level, temperature and pressure of gases, liquids, solids and their mixtures and, more rarely, concentration, pH value and redox potential, but also measure the course of polymerisation reactions using sound velocity sensors.

particularities

In contrast to laboratory measurement technology , the measuring devices used in process measurement technology are particularly robust and measure continuously.

The measuring devices for process measurement technology are installed in pipes , containers and apparatus and are shown in the P&ID diagram .

In plant construction , the measuring devices of the process measurement technology must be designed and precisely specified. Standards and VDI / VDE guidelines are helpful here.

If they are installed in potentially explosive areas, electrical measuring devices must meet special conditions, e.g. B. the type of protection intrinsic safety . In order to fundamentally avoid the risk of explosion from electrical sparks, electrical auxiliary energy was dispensed with and pneumatic flow, level, temperature and pressure measuring devices were used.

Process measurement technology in process engineering

In process engineering systems, the output signals from these measuring devices are transmitted to the control rooms, e.g. B. by means of an electrical or pneumatic standard signal or Profibus PA . Electric or pneumatic compact controllers or a process control system process the signals from the measuring devices and generate control signals for the actuating devices in order to influence the process and guide it in the desired manner. Control devices are control valves , butterfly valves , contactors and frequency converters for pumps and fans.

Technical processes in which process measurement technology plays a role (selection)

• Power plants
• Sewage treatment plants
• Extruder
• Refineries
• Pharmaceutical plants
• food industry

literature

Books

• Measuring in process engineering / [author. : Reiner Büscher ...], Siemens Aktiengesellschaft, Berlin [u. a.]: Siemens AG, 1972, ISBN 3-8009-1104-3
• Taschenbuch Betriebsmesstechnik / ed. by Klaus Götte ..., Berlin: Verlag Technik, 2., heavily edited. Ed., 1982
• Dietrich Hofmann: Handbook of measurement technology and quality assurance, 3rd, heavily edited. Ed., Berlin: Verl. Technik, 1986
• Werner Richter: Fundamentals of electrical measurement technology, 2., edit. Ed., Berlin: Verl. Technik, 1988
• Modern process measurement technology: a compendium / Volkmar Gundelach; Lothar Litz [ed.], Berlin; Heidelberg [u. a.]: Springer, 1999, ISBN 3-540-63225-5
• Strohrmann, Günther: Measurement technology in chemical companies: Introduction to measuring process parameters; 10th revised edition, Munich: Deutscher Industrieverlag, 2004, ISBN 978-3-8356-7049-5

VDI / VDE guidelines

• VDI / VDE manual process measurement technology and structure analysis [1]

Magazines

• Control engineering practice: rtp: magazine for measurement and automation technology with software technology, Munich: Oldenbourg, 1.1959 - 11.1969; 16.1974.9 - 26.1984
• Automation technology practice: atp: Practice of measurement, control, regulation and information technology with software technology, Munich: Oldenbourg, 27.1985 - 51.2009.9
• ATP edition: automation technology practice , 51.2009 - ...
• Measure, control, regulate: msr; scientific-technical journal for automation technology (1963-1991), Munich: Oldenbourg, Berlin: Verl. Technik; 6.1963 - 34.1991.6

measure up

• Leading trade fair "Integrated Automation, Motion & Drives" (IAMD) of the Hanover Fair
• ACHEMA
• IFAT (Munich)

Associations

• GMA (VDI / VDE Society for Measurement and Automation Technology)
• NAMUR (interest group automation technology in the process industry)

Training (selection)

• Institute for process measurement and sensor technology at the Technical University of Ilmenau
• Institute for process measurement technology and innovative energy systems at the Mannheim University of Applied Sciences
• Chair for Thermal Process Engineering (TVT) at the Technical University of Kaiserslautern
• Institute for Measurement, Control and Microtechnology at Ulm University

Individual evidence

1. ↑ Process measurement technology & structure analysis. Retrieved June 26, 2019 . 
2. ↑ Process measurement technology | ifak Magdeburg. Retrieved June 26, 2019 . 
3. ↑ Air pollution control - guidelines for emission monitoring. In: Forschungsbericht 360 16 004, UBA-FB 001090. Umweltbundesamt, 2008, accessed on June 26, 2019 . 
4. ↑ Process measurement technology. Retrieved June 26, 2019 . 
5. ^ Subjects - TH Köln. Retrieved June 29, 2019 . 
6. ↑ Part 4: Measuring devices for determining the pH value and the redox potential. In: Leaflet DWA-M 256-4 Process measurement technology on sewage treatment plants. German Association for Water Management, Sewage and Waste e. V., November 2013, accessed June 29, 2019 . 
7. ↑ SensoTech: Polymerization control - monitoring and tracking of the polymerization with a defined termination criterion. Retrieved June 26, 2019 . 
8. ↑ DIN EN ISO 5167-1 - 2004-01 - Beuth.de. Retrieved July 17, 2019 . 
9. ↑ VDI / VDE 2041 - flow measurement with throttle devices; Orifices and nozzles for special applications . ( vdi.de [accessed on July 17, 2019]).
10. ↑ Hans Hart: Introduction to measurement technology . 2nd Edition. Technology, Berlin 1979, p. 198-231 .