Конденсаційний гігрометр

Abstract

A condensation hydrometer includes a light source, a thermo-electrically controlled cooler, temperature measuring device, photodetector, block for control and calculation and a hollow light guide as a cuvette with a cone-like end for inlet-outlet of radiation and a mirror end, at that the input of the control and calculation block is electrically connected to the output of the temperature measuring device and photodetector, and the outputs are connected to the input of the light source and thermoelectrically controlled cooler, besides that it includes the second and the third thermoelectrically controlled coolers, the second and the third temperature measuring devices, focusing system, block for control of photo-detector, analog-to-digital converter. The light guide is arranged as two hemispheres with different diameters, the photodetector if arranged as a photo-ruler formed of several light-emitting diodes, the output of the second and the third temperature measuring devices are electrically connected to the inputs of the control and calculation block outputs of which are connected to the second and the third thermoelectrically controlled coolers, the focusing system is placed between the light source and the light guide, the outputs of the analog-to-digital converter are connected to the input of the photodetector control block and the input of the control and calculation block, the output of the block for control of photodetector is connected to the input of the photodetector output of which is connected to the input of the analog-to-digital converter.