Measuring and testing – Hardness – By penetrator or indentor
Patent
1984-03-20
1986-04-15
Swisher, S. Clement
Measuring and testing
Hardness
By penetrator or indentor
307351, 324103P, G01N 348
Patent
active
045819220
ABSTRACT:
A method of obtaining the peak value of a signal. The signal is sampled at certain intervals of time. The value of the sampled signal is compared subsequent to sampling with a value previously stored in a memory. The higher of the two compared values is stored in the memory for later comparison with a value obtained during a subsequent sampling. The higher of the values stored in the memory is stored in another memory after a maximum signal has been obtained.
REFERENCES:
patent: 2790968 (1957-04-01), Cook et al.
patent: 3939365 (1976-02-01), Lindgren
patent: 4295099 (1981-10-01), Evans
patent: 4311960 (1982-01-01), Barr
patent: 4363976 (1982-12-01), Minor
Shoup Guy W.
Soletanche
Swisher S. Clement
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