FIELD: physics.
SUBSTANCE: invention can be applied in instrument production and engineering for measurement of deformation, as well as concentrated forces and gas and fluid pressure. The resonator includes piezoelectric plate with interdigital transducer and equidistant reflector structures in the form of a groove system on the plate surface. The reflector structures are located at both ends around the interdigital transducer and perpendicular to the propagation direction of surface acoustic waves. Grooves of the reflector structures are set periodically at pace of 
groove width is 
porosity over 1, λ is a length of surface acoustic wave, n is an integer not less than 1, m is an integer not less than 1. Interdigital transducer is non-equidistant.
EFFECT: improved precision of deformation measurement due to higher resonator frequency deviation.
3 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SURFACE ACOUSTIC WAVE TWO-INPUT RESONATOR TO MEASURE STRAINS | 2006 |
|
RU2332640C1 |
| ACCELEROMETER USING SUPERFICIAL ULTRASONIC WAVES WITH RESONATOR | 2007 |
|
RU2348936C1 |
| DETECTING ELEMENT OF PHYSICAL QUANTITY SENSOR WITH REFLECTING STRUCTURES | 2009 |
|
RU2393444C1 |
| SURFACE-ACOUSTIC-WAVE RESONATOR WITH GROOVES | 2008 |
|
RU2366078C1 |
| PASSIVE IDENTIFICATION MARK ON SURFACE ACOUSTIC WAVES WITH RESONATOR | 2007 |
|
RU2350982C2 |
| DEFORMATION DETECTING ELEMENT WITH DISPERSION STRUCTURES | 2008 |
|
RU2396526C2 |
| DETECTING ELEMENT FOR MEASURING MECHANICAL STRESS | 2010 |
|
RU2435148C1 |
| DETECTING ELEMENT FOR MEASURING MECHANICAL STRESS | 2011 |
|
RU2457450C1 |
| DETECTING ELEMENT FOR MEASURING PHYSICAL QUANTITIES | 2009 |
|
RU2418276C1 |
| SENSITIVE ELEMENT FOR TEMPERATURE MEASUREMENT | 2012 |
|
RU2494358C1 |
