| 摘要 |
FIELD: engineering of measuring and controlling equipment, in particular, engineering of vortex-current transformers. ^ SUBSTANCE: stand contains optical bench with longitudinal groove on its working surface, made in form of dovetail, two object tables moveable along working surface, provided with micrometric screws, and an additional object table, mounted by their respective bases in groove of bench, two bars. Bars by one ends are rigidly held on first and second tables respectively and are positioned coaxially to each other. On other ends of bars directed towards each other, rigidly and perpendicularly to each other connected are tested vortex-current transformer and standard sample of normalized parameter. On additional table a tube is held immobile with through apertures for placing branch pipes and bars, enveloped by heat bandage. Between pipe and heat bandage thermo-couple is built in. transformer and sample are positioned inside the pipe and coaxially to it. Output of connecting pipe is connected through branch pipe of one of corks to hollow of tube. One of connecting pipe inputs is connected to output of cryostat, and second in - to output of thermostat. Tube, corks and branch pipes are made of heat-resilient material. ^ EFFECT: expanded functional capabilities of stand, trustworthy control within range of temperatures from +300 to -196°C. ^ 2 dwg |
