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It is an efficient approach of nonlinear correction for sensors by fitting curves to data, but it is difficult to fit curve with a single model for the thermocouple vacuum sensor, since its characteristic is very complex. A novel method of curve fitting based on multiple support vector regression (MSVR) is proposed. The sample space are divided into several sub-spaces, nonlinear mapping is established...
Nuclear pulse is directly related to the radiation intensity but influenced by statistical fluctuation. Because most available rate-meters have complex structure of circuits, we introduce a chip-microcomputer-based nuclear count rate measuring system which is easily incorporated into isotope gauges for measurement on level, density, thickness, etc. To make continuous measurement of the count rate,...
A digital isotopic level gauge of melting steel was developed to measure the mould level more quickly and accurately. This gauge is made of a gamma-ray radioactive source with nonlinear activity distribution, a nuclear detector and a signal processing unit. a simple and practical real time algorithm has been developed by which the pulse count rate is determined and the signal is filtered. Fuzzy logic...
Measurement with isotope has been a primary method for measuring ore pulp concentration all alone, the derived concentration value is the result of a time-averaged measurement. In order to decrease statistical error, longer measuring time should be adopted by isotope ore pulp concentration gauge to performs measurement. However, the gauge cannot respond quickly and dynamic measurement error will be...
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