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.)
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.)
Institut de Recherches de la Siderurgie Francaise IRSID
Original Assignee
Institut de Recherches de la Siderurgie Francaise IRSID
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 Institut de Recherches de la Siderurgie Francaise IRSIDfiledCriticalInstitut de Recherches de la Siderurgie Francaise IRSID
Priority to FR7512926ApriorityCriticalpatent/FR2308908A1/fr
Publication of FR2308908A1publicationCriticalpatent/FR2308908A1/fr
Application grantedgrantedCritical
Publication of FR2308908B1publicationCriticalpatent/FR2308908B1/fr
G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
G01B11/00—Measuring arrangements characterised by the use of optical techniques
G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
G01B11/306—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces for measuring evenness
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Length Measuring Devices By Optical Means
(AREA)
FR7512926A1975-04-251975-04-25Procede pour la detection et la mesure des defauts de planeite des toles
GrantedFR2308908A1
(fr)
