RADIOISOTROPIC DEVICE FOR PROCESS PARAMETRES CONTROL Russian patent published in 2009 - IPC G01N23/00 

FIELD: instrument engineering.

SUBSTANCE: invention refers to radioisotropic devices for process parametres non-contact control of different production processes, for instance for substance level or density measurement in different tanks at the basis of definition of ionisation radiation flux changing during its passing through controlled substance. Device consists of annihilation radiation source, two detectors, and two formers with matching circuits one of which is switched through delay. In order to improve measurement accuracy and processing speed at specified inaccuracy there is the third former frequency divider. Frequency divider input is connected with matching circuit, and output is connected with subtracting unit subsidiary input.

EFFECT: improvement of level measurement accuracy and device processing speed at the expense of measuring time decrease.

1 dwg