FIELD: acoustic location systems designed to detect objects in acoustically transparent media, classification of these objects according to their acoustic resistance. SUBSTANCE: acoustic echo location station includes radio pulse generator, synchronizer, indicator, two frequency dividers, adder, commutator, two filters, acoustic converter, two frequency multipliers, two amplifiers-limiters, phase detector and phase inverter. EFFECT: increased authenticity of classification of objects by their acoustic stiffness. 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ACOUSTIC ACTIVE SONAR | 2002 |
|
RU2205421C1 |
| ACOUSTIC ULTRASONOSCOPE | 2002 |
|
RU2288484C2 |
| ACOUSTIC ECHO-PULSE DETECTOR | 1999 |
|
RU2158007C1 |
| PARAMETRIC ACTIVE SONAR | 1989 |
|
RU1676352C |
| DEVICE FOR DETERMINATION AND CLASSIFICATION OF OBJECTS ACCORDING TO THEIR ACOUSTIC IMPEDANCE | 1991 |
|
RU2006876C1 |
| APPARATUS FOR SORTING OBJECTS ACCORDING THEIR ACOUSTIC RIGIDITY VALUE | 0 |
|
SU1827654A1 |
| DEVICE FOR MEASURING INTERMODULATION DISTORTIONS OF BROAD-BAND AMPLIFIERS | 0 |
|
SU845113A1 |
| ACTIVE SONAR FOR SEARCH OF OBJECTS CLOSE TO FLOOR, ON FLOOR AND IN SURFACE LAYER OF FLOOR | 1999 |
|
RU2149424C1 |
| PARAMETRIC ACOUSTIC LOCATOR | 0 |
|
SU1815615A1 |
| ACOUSTIC PULSE DETECTOR | 1993 |
|
RU2050558C1 |
