FIELD: physics.
SUBSTANCE: controlled article is subjected to mechanical action using an impact device having standard impact force. The electromagnetic signal generated by the article is picked up. The amplitude-frequency characteristic of the electromagnetic signal is determined through Fourier transformation, from which the amplitude of the main maximum is determined. The value determined that way is compared with a predetermined calibration curve which links moisture content of the article with the amplitude of the spectral maximum of the electromagnetic signal. Moisture content of the article is determined from the comparison results.
EFFECT: high accuracy of determining moisture content of articles made from solid materials.
2 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF STRENGTH TESTING OF HARD MATERIALS | 2003 |
|
RU2250449C2 |
| METHOD OF MONITORING STRENGTH OF OBJECTS MADE FROM SOLID MATERIALS | 2008 |
|
RU2380675C1 |
| METHOD OF CONTROLLING STRENGTH OF ARTICLES MADE FROM HARD MATERIALS | 2011 |
|
RU2453824C1 |
| PROCEDURE TESTING STRENGTH OF ARTICLES FROM SOLID MATERIALS | 2000 |
|
RU2190204C2 |
| METHOD AND APPARATUS FOR ACOUSTIC DIAGNOSIS OF ARTICLES MADE FROM METAL AND ALLOYS | 2010 |
|
RU2445614C1 |
| METHOD FOR MEASURING REFLECTION FACTOR ACCORDING TO RADAR ABSORBENT MATERIAL POWER IN ULTRA-WIDE FREQUENCY BAND | 2007 |
|
RU2346286C1 |
| METHOD OF MEASURING LOCAL ENERGY FREQUENCY SPECTRA AND REFLECTION FACTOR OF RADIO WAVE-ABSORBING MATERIAL | 2006 |
|
RU2321007C1 |
| METHOD OF DETERMINING ACOUSTIC WAVE VELOCITY IN LARGE CONCRETE OBJECTS WITH IRREGULAR SHAPE | 2009 |
|
RU2397487C1 |
| RESONANCE METHOD OF ULTRASONIC THICKNESS MEASUREMENT | 2017 |
|
RU2664785C1 |
| PROCESS OF PROXIMATE TEST OF QUALITY OF LIQUEUR AND VODKA ARTICLES FOR THEIR IDENTIFICATION | 1999 |
|
RU2142630C1 |
