Traceable-based Automatic Control System In The Water Flow Standards Are Applied Research On The Device

"Unified weights and measures" is the core business of each country. In the current global context of economic integration, to ensure value delivery system accurately and efficiently is very important. Standard test device is the main body of the national value transfer systems and equipment. Because of its special requirements traceability and restricts new technologies in the field of application, resulting in standard equipment accuracy, stability and efficiency can not be improved rapidly. With the industrial automation control system continues to develop, its accuracy, sensitivity, stability, have a qualitative leap in industrial control systems just to make up a standards unit for this drawback. Only a combination of multi-disciplinary consideration to resolve this issue.Standard water flow TISCO water flow test device is the highest value transfer measurement standards, but also the highest standards of high flow in Shanxi Province, to carry out the province's traffic class metering delivery and traceability of equipment value. Large flow standards at the equipment of the main function is to be seized tables, standard tables to create a stable flow field, makes measuring equipment in a relatively good measurement of the state, fully guaranteed money passing accurate and reliable. Now both domestic and foreign similar products used in the "big flow standard test device" regulator system is mainly used or pre-class entry-pass regulator, front entry-level bypass mode regulator by regulating the voltage regulator bypass valve stability of the container imported container liquid, water tank regulator system, the establishment of a high towers stored a certain amount of test medium to achieve a stable water supply purposes, the actual use of the bypass regulator exists in the container surface and volatile point of stability in a long time test, precision is low, pipeline coverage, narrow, a low degree of automation and quality control problems and poor efficiency. Towers stabilizing system a long time there is verification, certification and inefficient, the system pressure can not be adjusted and the installation of huge amount of investment is not easy to promote and so on. This lack of water for Shanxi province, the importance of accurate measurement is self-evident.In this paper, these and other problems exist in TISCO calibration laboratories to achieve "water flow standard verification device" and "industrial automation control systems" combined application of multi-disciplinary research carried out to explore。...