JPS5653403A - Shape measuring instrument - Google Patents

Shape measuring instrument

Info

Publication number
JPS5653403A
JPS5653403A JP13065679A JP13065679A JPS5653403A JP S5653403 A JPS5653403 A JP S5653403A JP 13065679 A JP13065679 A JP 13065679A JP 13065679 A JP13065679 A JP 13065679A JP S5653403 A JPS5653403 A JP S5653403A
Authority
JP
Japan
Prior art keywords
output
circuit
register
photoelectric elements
signals
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.)
Pending
Application number
JP13065679A
Other languages
Japanese (ja)
Inventor
Tsutomu Shiraishi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP13065679A priority Critical patent/JPS5653403A/en
Publication of JPS5653403A publication Critical patent/JPS5653403A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE: To enable a stabilized measurement of little erroneous operation by performing a correction for temperature drop due to an iron oxide et al by a method wherein an output of a photoelectric element which was once generated is made to hold equivalently by means of a specified circuit.
CONSTITUTION: The 1st and 2nd photoelectric elements 15aW15n and 16aW16n are disposed in a detector 4 and according to the state of a figure, 15eW15k and 16dW 16m form an image of red heat steel 1. Here, if a pool 40 of iron oxide et al exists, the photoelectric elements 16g, 16h which should generate the output of red heat steel material 1 do not generate the output, thus, resulting in a detection error. Therefore, a shift register 42 is installed and the signals from the detector 4 which once generated output are held the output state through the register 42 and the data signals are sent to a substraction circuit 43. In the circuit 43, the difference of the plate width of steel sheets are operated from the parallel outputs of two photoelectric elements of the register 42 and the specified signals are output from a drive signal generating circuit 14, thus, an erroneous operation can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP13065679A 1979-10-08 1979-10-08 Shape measuring instrument Pending JPS5653403A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13065679A JPS5653403A (en) 1979-10-08 1979-10-08 Shape measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13065679A JPS5653403A (en) 1979-10-08 1979-10-08 Shape measuring instrument

Publications (1)

Publication Number Publication Date
JPS5653403A true JPS5653403A (en) 1981-05-13

Family

ID=15039461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13065679A Pending JPS5653403A (en) 1979-10-08 1979-10-08 Shape measuring instrument

Country Status (1)

Country Link
JP (1) JPS5653403A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5828604A (en) * 1981-08-14 1983-02-19 Kawasaki Steel Corp Measuring device for plane form of travelling object
JPS5875009A (en) * 1981-10-30 1983-05-06 Kawasaki Steel Corp Shape detection for end part of plate material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5828604A (en) * 1981-08-14 1983-02-19 Kawasaki Steel Corp Measuring device for plane form of travelling object
JPS5875009A (en) * 1981-10-30 1983-05-06 Kawasaki Steel Corp Shape detection for end part of plate material

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