Method for measuring the density of lightweight materials

Details Method for measuring the density of lightweight materials Method for measuring the density of lightweight materials

1979-02-26

1980-10-14

Smith, Alfred E.

Radiant energy

Coded record and readers; invisible radiant energy type

250272, G01N 2320, G21K 100

Patent

active

042283515

ABSTRACT:
This invention relates to a nondestructive method for measuring the density of articles composed of elements having a low atomic number such as plastic and carbon composites. The measurement is accomplished by striking the article with a collimated beam of X radiation, simultaneously monitoring the radiation scattered and the radiation transmitted by the article, then relating the ratio of the radiation scattered to the radiation transmitted with the density of the article. The above method is insensitive to all variables except density.

REFERENCES:
patent: 4123654 (1978-10-01), Reiss
patent: 4147931 (1979-04-01), Puumalainen

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