JPS557604A - Detector for displacement - Google Patents

Detector for displacement

Info

Publication number
JPS557604A
JPS557604A JP7462078A JP7462078A JPS557604A JP S557604 A JPS557604 A JP S557604A JP 7462078 A JP7462078 A JP 7462078A JP 7462078 A JP7462078 A JP 7462078A JP S557604 A JPS557604 A JP S557604A
Authority
JP
Japan
Prior art keywords
light
voltage
amount
point
output voltage
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
JP7462078A
Other languages
Japanese (ja)
Inventor
Hironori Kusuki
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.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP7462078A priority Critical patent/JPS557604A/en
Publication of JPS557604A publication Critical patent/JPS557604A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)

Abstract

PURPOSE: To correctly detect the position of light point, without receiving the effect of the change in the amount of light with a simple constitution, by providing the monitor resistor for amount of light and normalizing the output voltage with the voltage produced across the both ends.
CONSTITUTION: When light is emitted on an arbitrary point P of the Schottky barrier diode 3, the current in proportional to the amount of light L via the resistor RL depending on the amount of light L is outputted to cause the output voltage e0 between the terminals 3a and 3b and the monitor voltage em across the monitor resistor Rm. Taking the total resistance of the bridge circuit as r0 and the value depending on the point P as r1, since the voltages e0 and em are changed with the resistors RLand r1, by normalizing the voltage e0 by the voltage em, the relation of E0=e0/em={R0(2r1-r0}/{Rm(2R0+r0)} is obtained. The normalized output voltage, E0∝(2r1-r0)∝P is obtained. This means no effect by the current. Accordingly, the light point signal not subject to the change in amount of light can be obtained by feeding the voltages e0, em to the division circuit 6 and outputting the voltage E0.
COPYRIGHT: (C)1980,JPO&Japio
JP7462078A 1978-06-20 1978-06-20 Detector for displacement Pending JPS557604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7462078A JPS557604A (en) 1978-06-20 1978-06-20 Detector for displacement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7462078A JPS557604A (en) 1978-06-20 1978-06-20 Detector for displacement

Publications (1)

Publication Number Publication Date
JPS557604A true JPS557604A (en) 1980-01-19

Family

ID=13552396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7462078A Pending JPS557604A (en) 1978-06-20 1978-06-20 Detector for displacement

Country Status (1)

Country Link
JP (1) JPS557604A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937466A (en) * 1982-08-26 1984-02-29 Mitsubishi Electric Corp Optical measuring device
RU2486465C1 (en) * 2011-12-01 2013-06-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Московский государственный индустриальный университет" Converter of linear movements into voltage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50113250A (en) * 1974-02-14 1975-09-05
JPS5223814A (en) * 1975-08-15 1977-02-23 Nippon Sharyo Seizo Kk Preparation method of composite girder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50113250A (en) * 1974-02-14 1975-09-05
JPS5223814A (en) * 1975-08-15 1977-02-23 Nippon Sharyo Seizo Kk Preparation method of composite girder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937466A (en) * 1982-08-26 1984-02-29 Mitsubishi Electric Corp Optical measuring device
RU2486465C1 (en) * 2011-12-01 2013-06-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Московский государственный индустриальный университет" Converter of linear movements into voltage

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