The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 08, 1987
Filed:
Feb. 13, 1986
Thomas G Roberts, Huntsville, AL (US);
Raymond W Conrad, Russellville, AL (US);
William F Otto, Huntsville, AL (US);
Thomas E Honeycutt, Somerville, AL (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
The meter consists of wire resistors arranged so as to sample the energy in a laser beam at different locations in the beam. Each resistor is part of a bridge which includes three other resistors, a power source, a detector (volt meter) and a display unit which may be a recorder. One of the three additional resistors may be an additional set of wires which are made nearly identical to the set being used to sense the laser beam's position or to determine its intensity distribution. When the wire resistors are exposed to the laser beam the wires are heated, their resistance changes, and the various bridges become unbalanced. The magnitude of the voltage produced in each bridge is proportional to the energy in the laser pulse at the location of each wire.