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This approach considers two distinct models: for simulation purposes, the air mass flow is determined for a given working pressure and command input; for control purposes, the command input is determined given the working pressure and the desired air mass flow. This approach enables the use of air mass flow as the synthesized control action, thus rendering the overall pneumatic system affine. Therefore, control techniques requiring this condition on the system model can be directly used. The use of this approach in two different industrial pneumatic servo valves is presented in detail. A comparison between the different characteristics of each servo valve is also provided.<\/jats:p>","DOI":"10.1177\/2041304110394498","type":"journal-article","created":{"date-parts":[[2011,6,13]],"date-time":"2011-06-13T15:29:50Z","timestamp":1307978990000},"page":"393-411","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":13,"title":["Pneumatic servo valve models based on artificial neural networks"],"prefix":"10.1177","volume":"225","author":[{"given":"J","family":"Falc\u00e3o Carneiro","sequence":"first","affiliation":[{"name":"Faculdade de Engenharia, Universidade do Porto, Porto, Portugal"}]},{"given":"F","family":"Gomes de Almeida","sequence":"additional","affiliation":[{"name":"Faculdade de Engenharia, Universidade do Porto, Porto, Portugal"}]}],"member":"179","published-online":{"date-parts":[[2011,6,13]]},"reference":[{"key":"bibr1-2041304110394498","first-page":"257","volume-title":"Proceedings of the Bath Workshop on Power transmission and motion control","author":"Kagawa T."},{"key":"bibr2-2041304110394498","doi-asserted-by":"publisher","DOI":"10.1016\/S0005-1098(97)00015-0"},{"key":"bibr3-2041304110394498","doi-asserted-by":"publisher","DOI":"10.1115\/1.2802376"},{"key":"bibr4-2041304110394498","doi-asserted-by":"publisher","DOI":"10.1109\/TMECH.2002.805624"},{"key":"bibr5-2041304110394498","doi-asserted-by":"publisher","DOI":"10.1243\/0959651991540232"},{"key":"bibr6-2041304110394498","unstructured":"Richard E. 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