Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: Applicatioks Of Telemetering
Author: Dennis Alters
Source: 1991 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1991
Abstract: In order to properly understand new applications in telemetering it is mandatory to understand where we have evolved from in the past decade. Early in the 1980s the maj ority of our telemetering consisted of metameters. used in conjuction with some type of multiplexing system. These mechanical units provided years of good service however were somewhat limited in their uses. These units transmitted data through phone lines, microwave and radio frequency to a central monitoring point. The data was converted to strip chart recorders or processed by large main frame computers where it could be monitored by a gas controller. The advantage of the strip chart recorder was you could see flow patterns for several hours at a time but flow volumes had to be calculated by hand and the excessive amounts of processing paper was costly and cumbersome. The main frame system provided several advantages over the strip chart recorders. One main advantage was the main frame could process the raw data from the transmitting unit and display calculated volumes based on pressure, temperature, and differential. These volumes were closer to the actual volumes than any other readings we had been able to transmit before. The main disadvantage was when the main frame system went down a gas control center could not see any status points throughout their system. Due to these problems a second main frame or large backup system was required. Obviously in many cases this made telemetering very expensive.

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.