GB1191867A - Means for Measuring a Dimension of an Object - Google Patents

Means for Measuring a Dimension of an Object

Info

Publication number
GB1191867A
GB1191867A GB3697067A GB3697067A GB1191867A GB 1191867 A GB1191867 A GB 1191867A GB 3697067 A GB3697067 A GB 3697067A GB 3697067 A GB3697067 A GB 3697067A GB 1191867 A GB1191867 A GB 1191867A
Authority
GB
United Kingdom
Prior art keywords
photo
mirror
cell
axis
scans
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
GB3697067A
Inventor
Erik Persson
Nils-Erik Claesson
Ingvar Trulsson
Osuald Melandsor
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB1191867A publication Critical patent/GB1191867A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • 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
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness

Abstract

1,191,867. Photo-electric measurement of dimensions. ALLM€NNA SVENSKA ELEKTRISKA A.B. Aug. 11, 1967 [Aug. 12, 1966], No.36970/67. Heading G1A. To measure the width of an object, which may be hot, a photo-cell scans the object by means of a rotating mirror or alternatively a rotating slotted drum having the photo-cell on its central axis of rotation, the axis of rotation of the mirror or drum both passing through the focal point and being normal or close to normal to the optical axis of a lens or mirror collecting radiation from the object, whereby the object may move towards or away from the collecting lens or mirror without effecting the measurement. In one arrangement Fig. 1 a photo-cell 11, has, by means of a rotating plane mirror 14, placed at the focal point of mirror 15, a field of view along path 16 which scans the object 17 but remains parallel to the optical axis of the system. In another arrangement Fig. 6 a photo-cell 24 is positioned on the axis of a drum 23 which has a slot 25. In there arrangements the lens 26 and mirror 15 may be inter-changed. The output of the photo-cell opens a gate to pass a train timing pulses to a counter for the time the photo-cell scans the object, the reading of the counter thereby indicating the width of the object.
GB3697067A 1967-08-11 1967-08-11 Means for Measuring a Dimension of an Object Expired GB1191867A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1191867 1967-08-11

Publications (1)

Publication Number Publication Date
GB1191867A true GB1191867A (en) 1970-05-13

Family

ID=9995025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3697067A Expired GB1191867A (en) 1967-08-11 1967-08-11 Means for Measuring a Dimension of an Object

Country Status (1)

Country Link
GB (1) GB1191867A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171917A (en) * 1974-07-02 1979-10-23 Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie Determining the profile of a surface of an object

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4171917A (en) * 1974-07-02 1979-10-23 Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie Determining the profile of a surface of an object

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees