METHOD OF USE OF ULTRASOUND TO STUDY DETAILS The immersion fluid

摘要

1.method u0438u0441u043fu043eu043bu044cu0437u043eu0432u0430u043du0438u00a0 ultrasound u0434u043bu00a0 u0438u0441u0441u043bu0435u0434u043eu0432u0430u043du0438u00a0 details in u0438u043cu043cu0435u0440u0441u0438u043eu043du043du043eu0439 fluid involves the use of a u043fu0440u0435u043eu0431u0440u0430u0437u043eu0432u0430u0442u0435u043bu00a0 emitting focused p u0443u0447u043eu043a ultrasonic waves and a receiver echo signals formed by the u043eu0442u0440u0430u0436u0435u043du0438u00a0 focused beam of any defects in the u0443u043fu043eu043cu00a0u043du0443u0442u043eu0439 details in the axis of the focused beam on the surface of the u043fu0435u0440u043fu0435u043du0434u0438u043au0443u043bu00a0u0440u043du0430 detailsmethod u0437u0430u043au043bu044eu0447u0430u0435u0442u0441u00a0 using u043cu043du043eu0433u043eu044du043bu0435u043cu0435u043du0442u043du043eu0433u043e circular ultrasonic u043fu0440u0435u043eu0431u0440u0430u0437u043eu0432u0430u0442u0435u043bu00a0, u0441u0432u00a0u0437u0430u043du043du043eu0433u043e with electronic means for automatic focusing, and if the axis of siberian federal district u043au0443u0441u0438u0440u043eu0432u0430u043du043du043eu0433u043e beam close to the edge details and passes through the zone of the shadows, u043au043eu0442u043eu0440u0430u00a0 can mask the presence of a defect in u0443u043fu043eu043cu00a0u043du0443u0442u043eu0439 zone, at least in the part of the volume.then u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 slant axis of focused beam in the direction of u043au0440u0430u00a0 details on u043du043eu0440u043cu0430u043bu0438 surface details on the corner, which is quite small u0434u043bu00a0 u0438u0437u0431u0435u0436 u0430u043du0438u00a0 u0438u0437u043cu0435u043du0435u043du0438u00a0 amplitude reflected defect waves and high u0434u043bu00a0 u0438u0441u043au043bu044eu0447u0435u043du0438u00a0 lateral shadow zone on all, or substantially all over the depth of detail.;2. method for 1, which contains the original use of the calibration details u0434u043bu00a0 u0438u0437u043cu0435u0440u0435u043du0438u00a0 first values of the angle, beyond which the shadow suit u043bu044eu0447u0430u0435u0442u0441u00a0 u0434u043bu00a0 different depths within the details, and the choice of u0437u043du0430u0447u0435u043du0438u00a0 angle u0434u043bu00a0 u0438u0441u0441u043bu0435u0434u043eu0432u0430u043du0438u00a0, less than, or slightly more than the maximum value first of u0443u043fu043eu043cu00a0u043du0443u0442u044bu0445 measured values.;3. method for 2, which also contains additional details on the calibration of the second u0437u043du0430u0447u0435u043du0438u00a0 angle, beyond which the amplitude of the reflected u0434u0435u0444u0435u043au0442u043e m wavelength is u0443u043cu0435u043du044cu0448u0430u0442u044cu0441u00a0 with increase of angle, and the inclination of the axis of u0434u043bu00a0 u0438u0441u0441u043bu0435u0434u043eu0432u0430u043du0438u00a0 focused beam, the value of which lies between the first u0443u043fu043eu043cu00a0u043du0443u0442u044bu043cu0438 a u0437u043du0430u0447u0435u043du0438u00a0u043cu0438 and the second value.;4. method for 1, in which the angle of inclination of the focused beam on the surface of u0441u043eu0441u0442u0430u0432u043bu00a0u0435u0442 u043du043eu0440u043cu0430u043bu0438 details about 3 u0434u043bu00a0 parts made of ti zeng.;5. method for p.1, in which u0434u043bu00a0 u043eu043fu0440u0435u0434u0435u043bu0435u043du0438u00a0 u043fu0440u043eu0442u00a0u0436u0435u043du043du043eu0441u0442u0438 zone shadows from u043au0440u0430u00a0 details u043eu0441u0443u0449u0435u0441u0442u0432u043bu00a0u044eu0442 displacement element u043eu0442u043au043bu043eu043du0435u043du0438u00a0 u0434u043bu00a0 u043eu0442u043au043bu043eu043du0435u043du0438u00a0 focused beam in dc motors u0435u0449u0435u043du0438u0438 on surface parts along an axis crossing the axis of the focused ultrasonic beam; and the identification of the elements u043eu0442u043au043bu043eu043du0435u043du0438u00a0, to u043eu0442u043eu0440u043eu043c amplitude echo signalformed by the focused beam from the defect u0438u0437u043cu0435u043du00a0u0435u0442u0441u00a0 between minimum and maximum u0437u043du0430u0447u0435u043du0438u00a0u043cu0438.;6. method according to clause 5, in which the element u043eu0442u043au043bu043eu043du0435u043du0438u00a0 u043fu0440u0435u0434u0441u0442u0430u0432u043bu00a0u0435u0442 a u043fu0440u0435u0434u043eu0441u0442u0430u0432u043bu00a0u044eu0449u0443u044e prism, at least one u043eu0442u0440u0430u0436u0430u0442u0435u043bu044cu043du0443u044e line, bowed, for example, under 45 to tu. u0435u0440u0445u043du043eu0441u0442u0438 details and to the axis of the focused beam.;7. method for p.6, in addition to containing the identification of the two diametrically opposed about the axis of the prism focused ultrasonic beam, u0434u043bu00a0 which ila u043bu0438u0442u0443u0434u0430 echo signal formed by a focused beam of defectstarts to drop from the maximum u0437u043du0430u0447u0435u043du0438u00a0 in advance and to the axis of the focused beam; and the calculation of u0440u0430u0441u0441u0442u043eu00a0u043du0438u00a0 between the u0434u0432u0443u043cu00a0 based on u0438u00a0u043cu0438 u0434u043bu00a0 u043fu043eu043bu0443u0447u0435u043du0438u00a0 u043fu0440u043eu0442u00a0u0436u0435u043du043du043eu0441u0442u0438 shadow zone.