15 figs., 11 tabsĭesign and manufacture of densitometer using in industrial radiography
The primary objectives of the tests performed were: to verify all assemblies fit as designed (mechanical fitup) to ensure radiation levels met the criteria (<2.5 mR/h) to verify that design accuracy requirements were met (performance tests) and to verify proper operation of the densitometer systems (functional checks). The five densitometer systems are used on the UPTF four hot legs and broken cold leg to measure average chordal-beam densities. This report documents acceptance test results performed on the five Upper Plenum Test Facility (UPTF) three-beam densitometer systems and spare parts. A two-element capacitance densitometer is used in conjunction with a conventional single-beam gamma densitometer to unambiguously identify the prevailing flow regime and the average density of a flowing fluidīMFT-UPTF densitometer system test report This invention relates to a capacitance densitometer for determining the flow regime of a two-phase flow system. Results have shown an improvement over the original densitometer in reliability and repeatability of the system, an a factor-of-five improvement in accuracyĬapacitance densitometer for flow regime identification The densitometer, when used in a scanning mode, is a precision reference instrument that provides chordal average density measurements over the cross section of a pipe under steady-state flow conditions. The microprocessor controls the detector movement, provides self-calibration, compensates raw readings to provide time-linear output, controls both data storage and the host computer interface, and provides measurement output in engineering units for immediate reading. International Nuclear Information System (INIS)Īn Automated Scanning Densitometer System has been developed by uniting a microprocessor with a low energy x-ray densitometer system. Microprocessor-controlled scanning densitometer system
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