FR950463A - Circuit antimicrophonique comportant des photo-cellules - Google Patents

Circuit antimicrophonique comportant des photo-cellules

Info

Publication number
FR950463A
FR950463A FR950463DA FR950463A FR 950463 A FR950463 A FR 950463A FR 950463D A FR950463D A FR 950463DA FR 950463 A FR950463 A FR 950463A
Authority
FR
France
Prior art keywords
antimicrophonic
photocells
circuit
antimicrophonic circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Electric Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of FR950463A publication Critical patent/FR950463A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
FR950463D 1939-05-05 1947-07-29 Circuit antimicrophonique comportant des photo-cellules Expired FR950463A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US950463XA 1939-05-05 1939-05-05

Publications (1)

Publication Number Publication Date
FR950463A true FR950463A (fr) 1949-09-28

Family

ID=22248966

Family Applications (1)

Application Number Title Priority Date Filing Date
FR950463D Expired FR950463A (fr) 1939-05-05 1947-07-29 Circuit antimicrophonique comportant des photo-cellules

Country Status (1)

Country Link
FR (1) FR950463A (fr)

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