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Title: Electronics In Orifice Measurements
Author: James H. Griffeth
Source: 1989 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1989
Abstract: Electronics in Orifice Measurement has only recently become more prevalent for on-site use. When gas was inexpensive the need for accurate measurement was not there. Historically, mechanical circular charts have filled the need to record flows, pressures and temperatures. But today we in the gas measurement business have seen an ever increasing demand to know what the true volume is at the site. With this demand comes electronics in the form of transducers and flow computers. The purpose of this paper is to make you- the field measurement operator- more aware of electronics and how it relates to our future field measurement systems. Over the past few years it has been more practical to use electronic systems to duplicate the control effects that can be produced with pneumatics. With the refinement of solid state electronics to the commonly know Integrated Circuit (IC) came the advantage of lower cost and higher reliability. In addition to the lower cost and higher reliability, the electronics has the advantage of almost instant transmission of signals to remote locations, and the signal is easily adapted to a variety of control systems. Customers of these systems have realized a quick payback of lower operational costs and real time data.

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