JPS6443712A - Automatic level measuring instrument - Google Patents

Automatic level measuring instrument

Info

Publication number
JPS6443712A
JPS6443712A JP20049987A JP20049987A JPS6443712A JP S6443712 A JPS6443712 A JP S6443712A JP 20049987 A JP20049987 A JP 20049987A JP 20049987 A JP20049987 A JP 20049987A JP S6443712 A JPS6443712 A JP S6443712A
Authority
JP
Japan
Prior art keywords
light
height
optical axis
reception part
center
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
JP20049987A
Other languages
Japanese (ja)
Inventor
Satoru Hasegawa
Eisuke Sako
Tsutomu Obayashi
Sadao Handa
Takeshi Aoyama
Kazuhisa Aoki
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.)
RIKEN DENKEI KK
RIKEN ELECTRIC METERS
Nippon Telegraph and Telephone Corp
Original Assignee
RIKEN DENKEI KK
RIKEN ELECTRIC METERS
Nippon Telegraph and Telephone 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 RIKEN DENKEI KK, RIKEN ELECTRIC METERS, Nippon Telegraph and Telephone Corp filed Critical RIKEN DENKEI KK
Priority to JP20049987A priority Critical patent/JPS6443712A/en
Publication of JPS6443712A publication Critical patent/JPS6443712A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)

Abstract

PURPOSE:To simplify operation, to obtain the accuracy of numeric values and to simplify data rearrangement by allowing a light receiving device to receive a light beam emitted by a light emission part and detecting the height of the optical axis. CONSTITUTION:A staff 1 is constituted by providing the light reception part 10 which receives the light beam from the light emission part 9 in the predetermined center, a detection part 20 which detects the optical axis of the light beam projected in a state of up-down symmetry about the center, etc. The light emitting device 9 is arranged at an optional point D and the staff 11 is arranged at a point A; and the light emission device 9 projects the laser light beam on the light reception part 10 of a light receiving device 8. The light reception part 10 judges the position of the optical axis by the CPU in the staff 11 from the output of the light receiving element and the light receiving device 8 is slid up and down to align the optical axis with the center of the light reception part 10. Consequently, the distance and direction of the movement of a tape 16 are detected 20 and the height of the center of the light reception part 10 is displayed 4. The height at the point A is regarded as reference height and the height of the optical axis is found at points B and C successively, thereby finding the difference in height between the points B and C based upon the point A.
JP20049987A 1987-08-11 1987-08-11 Automatic level measuring instrument Pending JPS6443712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20049987A JPS6443712A (en) 1987-08-11 1987-08-11 Automatic level measuring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20049987A JPS6443712A (en) 1987-08-11 1987-08-11 Automatic level measuring instrument

Publications (1)

Publication Number Publication Date
JPS6443712A true JPS6443712A (en) 1989-02-16

Family

ID=16425337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20049987A Pending JPS6443712A (en) 1987-08-11 1987-08-11 Automatic level measuring instrument

Country Status (1)

Country Link
JP (1) JPS6443712A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04503255A (en) * 1989-05-22 1992-06-11 マーティンソン，ヨナス leveling bar
JPH05113330A (en) * 1991-10-21 1993-05-07 Sato Kogyo Co Ltd Leveling apparatus to be operated by single person
JPH0622911U (en) * 1992-05-22 1994-03-25 久夫 近藤 Leveling mount for receiver for level planar
KR100808468B1 (en) * 2007-11-08 2008-03-03 (주) 일신하이텍 Surveying instrument

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037459A (en) * 1973-08-06 1975-04-08
JPS5312386A (en) * 1976-07-17 1978-02-03 Thyssen Niederrhein Ag Ultrasonic flaw detector for inspecting plateelike objects*particularly strips by using lambert wave pulse echo method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037459A (en) * 1973-08-06 1975-04-08
JPS5312386A (en) * 1976-07-17 1978-02-03 Thyssen Niederrhein Ag Ultrasonic flaw detector for inspecting plateelike objects*particularly strips by using lambert wave pulse echo method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04503255A (en) * 1989-05-22 1992-06-11 マーティンソン，ヨナス leveling bar
JPH05113330A (en) * 1991-10-21 1993-05-07 Sato Kogyo Co Ltd Leveling apparatus to be operated by single person
JPH0622911U (en) * 1992-05-22 1994-03-25 久夫 近藤 Leveling mount for receiver for level planar
KR100808468B1 (en) * 2007-11-08 2008-03-03 (주) 일신하이텍 Surveying instrument

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