| 摘要 |
FIELD: instrument making.SUBSTANCE: luminescent photometer is proposed, comprising a channel of luminescence excitation, including an UV light diode with a source of pulse-periodical supply, a metering chamber with an optical cuvette installed in it with a crystal phosphorus activated with a determined chemical element, and a channel of measurement of luminescence radiation. This channel includes the following components optically connected along the vertical axis: a device of luminescent radiation beam formation, an interference light filter, a receiver of radiation of visible or infrared range, a system of registration connected with a radiation receiver and comprising the serially joined amplifier, synchronous filter, control inputs of which are connected with a source of pulse-periodic supply via a unit of controlled time delay. The device also comprises an analog to digital converter and a device of digital information display.EFFECT: higher accuracy of measurement of low concentrations of chemical elements by spectra of luminescence in objects of environment and in process solutions.8 cl, 2 dwg |
