FIELD: devices for acoustic check of materials and their hardness. SUBSTANCE: device is provided with indenter penetrating into material when is rigidly connected with acoustical-electrical transducer. It consists of piezoelectric oscillation exciter and piezoelectric indicator. Both these units are connected to self-exciting oscillator whose output is connected with signal processing and registration unit. EFFECT: enhanced reliability. 2 cl, 1 dwg
Title | Year | Author | Number |
---|---|---|---|
ELECTROACOUSTIC HARDNESS GAUGE | 1992 |
|
RU2042942C1 |
ACOUSTIC METHOD AND DEVICE FOR DETERMINING SAMPLE PARAMETERS | 1992 |
|
RU2044298C1 |
METHOD AND DEVICE FOR DETERMINATION OF HARDNESS OF ARTICLE | 1992 |
|
RU2047157C1 |
METHOD OF AND DEVICE FOR ELECTROACOUSTIC INSPECTION OF MATERIAL HARDNESS | 1992 |
|
RU2045025C1 |
METHOD OF TESTING MATERIAL HARDNESS AND DEVICE FOR IMPLEMENTATION | 1992 |
|
RU2042943C1 |
MATERIAL HARDNESS MEASURING DEVICE | 0 |
|
SU1795350A1 |
ELECTROACOUSTIC HARDNESS METER | 0 |
|
SU1404891A1 |
HARDNESS GAUGE | 0 |
|
SU1820296A1 |
DEVICE FOR ORIENTATION OF THE BLIND | 1993 |
|
RU2049455C1 |
DEVICE FOR MEASURING HARDNESS OF MATERIALS | 0 |
|
SU1714437A1 |
Authors
Dates
1995-09-27—Published
1992-04-29—Filed