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Methods and apparatus for surveying roof moisture content

  • US 4,542,472 A
  • Filed: 02/05/1982
  • Issued: 09/17/1985
  • Est. Priority Date: 02/05/1982
  • Status: Expired due to Fees
First Claim
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1. A nuclear radiation gauge for surveying a roof for moisture content at a plurality of measurement locations arranged in a predetermined array on the roof, said gauge comprising:

  • neutron source means for emitting fast neutrons,thermal neutron detector means mounted in predetermined spaced relation to said source means for detecting neutrons emitted from said source means which have been moderated and slowed by hydrogen atoms and for generating signals representative of the moisture at a location at which the gauge is positioned on the roof,signal registering and storing means connected with said detector means and responsive to generated signals for registering a signal representative of the moisture at a location at which the gauge is positioned on the roof, said signal registering and storing means including a programmable memory means for storing registered signals generated at a succession of locations at which the gauge is successively positioned, andprocessor means operatively connected with said signal registering and storing means for responding to the registration of a generated signal in a programmable memory device by generating the coordinates indicative of the next successive location distributed in the predetermined array and at which the gauge is to be positioned.

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