FR2974411B3 - Niveau - Google Patents

Niveau

Info

Publication number
FR2974411B3
FR2974411B3 FR1253647A FR1253647A FR2974411B3 FR 2974411 B3 FR2974411 B3 FR 2974411B3 FR 1253647 A FR1253647 A FR 1253647A FR 1253647 A FR1253647 A FR 1253647A FR 2974411 B3 FR2974411 B3 FR 2974411B3
Authority
FR
France
Prior art keywords
level
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 - Lifetime
Application number
FR1253647A
Other languages
English (en)
Other versions
FR2974411A3 (fr
Inventor
Guiwu Hu
Ming Chen
Xiaoyang Zhang
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.)
Chevron HK Ltd
Original Assignee
Chevron HK 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 Chevron HK Ltd filed Critical Chevron HK Ltd
Publication of FR2974411A3 publication Critical patent/FR2974411A3/fr
Application granted granted Critical
Publication of FR2974411B3 publication Critical patent/FR2974411B3/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/02—Details
    • G01C9/06—Electric or photoelectric indication or reading means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C9/00—Measuring inclination, e.g. by clinometers, by levels
    • G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
    • G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
    • G01C9/34—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble of the tubular type, i.e. for indicating the level in one direction only

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Toys (AREA)
  • Length Measuring Devices By Optical Means (AREA)
FR1253647A 2011-04-22 2012-04-20 Niveau Expired - Lifetime FR2974411B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101011550A CN102749069A (zh) 2011-04-22 2011-04-22 安平装置

Publications (2)

Publication Number Publication Date
FR2974411A3 FR2974411A3 (fr) 2012-10-26
FR2974411B3 true FR2974411B3 (fr) 2013-06-14

Family

ID=46935995

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1253647A Expired - Lifetime FR2974411B3 (fr) 2011-04-22 2012-04-20 Niveau

Country Status (3)

Country Link
CN (1) CN102749069A (fr)
DE (1) DE202012101430U1 (fr)
FR (1) FR2974411B3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107479356B (zh) * 2017-08-22 2020-02-14 蓝思科技（长沙）有限公司 电子设备、曲面镜片及其加工方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4237953C1 (de) * 1992-11-11 1994-06-09 Bodenseewerk Geraetetech Neigungssensor mit optischem Abgriff
JPH10197241A (ja) * 1997-01-09 1998-07-31 Asahi Optical Co Ltd 傾斜センサの密閉容器
JP3793315B2 (ja) * 1997-02-21 2006-07-05 株式会社トプコン 傾斜検出装置

Also Published As

Publication number Publication date
FR2974411A3 (fr) 2012-10-26
CN102749069A (zh) 2012-10-24
DE202012101430U1 (de) 2012-08-28

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