FIELD: medicine, diagnostics.
SUBSTANCE: the suggested method deals with stimulation of tympanic membrane fluctuations due to the action of sound impact with possibility to alter not the intensity only, but the frequency of sound impact, also, followed by irradiation of tympanic membrane with laser radiation, direction of reflected radiation into laser resonator, registration of altered power of laser radiation as electric signal, division of registered signal into spectral constituents, alteration in the intensity of sound impact till the stoppage of amplitude growth of spectral component having maximum value, the calculation of fluctuation amplitude of tympanic membrane ξalt due to applying the obtained spectral constituents of the signal. The innovation provides higher sensitivity of performed measurements at providing the chance to carry out measurements in vivo.
EFFECT: higher accuracy of measurement.
5 dwg
Title | Year | Author | Number |
---|---|---|---|
VIBRATION AMPLITUDE DETERMINATION METHOD | 2002 |
|
RU2208769C1 |
METHOD OF MEASURING VELOCITY OF OBJECT | 2003 |
|
RU2247395C1 |
MODE OF DEFINITION OF THE AMPLITUDE OF VIBRATION ON TWO HARMONIES OF THE SPECTRUM OF AN AUTODYNE SIGNAL | 2005 |
|
RU2300085C1 |
METHOD TO DETERMINE AMPLITUDE OF NANOVIBRATIONS BY SIGNAL OF LASER AUTODYNE | 2012 |
|
RU2507487C2 |
METHOD OF MEASUREMENT OF DISPLACEMENT | 2017 |
|
RU2658112C1 |
METHOD OF DETERMINING DISTANCE TO OBJECT | 2016 |
|
RU2629651C1 |
METHOD OF DIAGNOSING AUDITORY TUBE PATENCY | 2009 |
|
RU2388406C1 |
METHOD STUDYING MOVEMENT OF OBJECT | 1997 |
|
RU2133450C1 |
METHOD STUDYING PERIODIC VIBRATIONS | 1995 |
|
RU2098776C1 |
METHOD OF DETERMINING AMPLITUDE OF NANOVIBRATIONS FROM SPECTRUM OF FREQUENCY-MODULATED SEMICONDUCTOR LASER AUTODYNE | 2013 |
|
RU2520945C1 |
Authors
Dates
2005-08-20—Published
2004-02-10—Filed