Industrial thermal mass flowmeters Part 1. Principles of operation

Improved performance, enhanced user-interfaces and I reduced cost-of-ownership have helped thermal mass flowmeters gain, acceptance in the industrial process control market for gas flow measurements. Part I provides a comprehensive explanation of the thermal principle of operation. It also compares the performance and cost-reduction attributes of the industrial thermal mass flowmeter to those of other flow monitoring instruments. In the April issue of M&C, Part II will include a description of the various sensor, flow body and electronics configurations available today, and a list of typical applications.