JPH11231588A - 定距離非接触システムとその方法 - Google Patents
定距離非接触システムとその方法Info
- Publication number
- JPH11231588A JPH11231588A JP30088698A JP30088698A JPH11231588A JP H11231588 A JPH11231588 A JP H11231588A JP 30088698 A JP30088698 A JP 30088698A JP 30088698 A JP30088698 A JP 30088698A JP H11231588 A JPH11231588 A JP H11231588A
- Authority
- JP
- Japan
- Prior art keywords
- probe
- photoreceptor
- distance
- aerodynamic
- drum
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000005339 levitation Methods 0.000 claims description 65
- 230000033001 locomotion Effects 0.000 claims description 8
- 238000007667 floating Methods 0.000 abstract description 20
- 239000000523 sample Substances 0.000 description 208
- 108091008695 photoreceptors Proteins 0.000 description 138
- 239000007789 gas Substances 0.000 description 58
- 238000003384 imaging method Methods 0.000 description 46
- 238000005259 measurement Methods 0.000 description 30
- 230000002950 deficient Effects 0.000 description 29
- 239000010410 layer Substances 0.000 description 16
- 230000003068 static effect Effects 0.000 description 13
- 238000012545 processing Methods 0.000 description 12
- 238000007689 inspection Methods 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000003287 optical effect Effects 0.000 description 10
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000015556 catabolic process Effects 0.000 description 7
- 238000000576 coating method Methods 0.000 description 7
- 230000007547 defect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 6
- 238000007600 charging Methods 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 238000011088 calibration curve Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 3
- 230000003213 activating effect Effects 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000003491 array Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012777 electrically insulating material Substances 0.000 description 2
- 238000007786 electrostatic charging Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- 241000519995 Stachys sylvatica Species 0.000 description 1
- 241001422033 Thestylus Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 238000005513 bias potential Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 108020003175 receptors Proteins 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
- G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
- G03G15/5037—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor the characteristics being an electrical parameter, e.g. voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J19/00—Character- or line-spacing mechanisms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/60—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrostatic variables, e.g. electrographic flaw testing
- G01N27/61—Investigating the presence of flaws
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/0456—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207 for maintaining a predetermined distance between the scanning elements and the picture-bearing surface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/0466—Selectively scanning in one or the other of two opposite directions, e.g. in the forward or the reverse direction
- H04N2201/0468—Scanning in both of the two directions, e.g. during the forward and return movements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/6633—With fluid system support for workman or non-system material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Electrochemistry (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Control Or Security For Electrophotography (AREA)
- Cleaning In Electrography (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/961,436 | 1997-10-30 | ||
| US08/961,436 US6119536A (en) | 1997-10-30 | 1997-10-30 | Constant distance contactless device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11231588A true JPH11231588A (ja) | 1999-08-27 |
| JPH11231588A5 JPH11231588A5 (enExample) | 2005-11-04 |
Family
ID=25504469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30088698A Withdrawn JPH11231588A (ja) | 1997-10-30 | 1998-10-22 | 定距離非接触システムとその方法 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6119536A (enExample) |
| JP (1) | JPH11231588A (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007108173A (ja) * | 2005-10-11 | 2007-04-26 | Xerox Corp | 帯電可能表面上の欠陥点を検出するためのコンタクトレスシステム |
| KR20130137585A (ko) * | 2010-07-01 | 2013-12-17 | 더 리젠츠 오브 더 유니버시티 오브 미시건 | Ｏｖｊｐ 프린트 헤드 위치의 가스 쿠션 컨트롤 방법 및 장치 |
| CN117308810A (zh) * | 2023-11-28 | 2023-12-29 | 乐山市通达交通勘察设计有限责任公司 | 一种隧道变形检测装置 |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7146850B2 (en) * | 2003-07-08 | 2006-12-12 | Chrome Deposit Corporation | Roll contour measuring apparatus and method |
| DE602005012499D1 (de) * | 2004-05-03 | 2009-03-12 | Sign Tronic Ag | Vorrichtung zum scannen einer oberfläche mit elektromagnetischer strahlung |
| US20060029151A1 (en) * | 2004-08-05 | 2006-02-09 | Moran Robert D | Capacitive data link |
| JP2006187929A (ja) * | 2005-01-06 | 2006-07-20 | Konica Minolta Business Technologies Inc | 画像形成装置 |
| US7541123B2 (en) * | 2005-06-20 | 2009-06-02 | Xerox Corporation | Imaging member |
| US7666560B2 (en) * | 2005-06-21 | 2010-02-23 | Xerox Corporation | Imaging member |
| US7390598B2 (en) * | 2005-06-28 | 2008-06-24 | Xerox Corporation | Photoreceptor with three-layer photoconductive layer |
| US7361440B2 (en) * | 2005-08-09 | 2008-04-22 | Xerox Corporation | Anticurl backing layer for electrostatographic imaging members |
| US20070059616A1 (en) * | 2005-09-12 | 2007-03-15 | Xerox Corporation | Coated substrate for photoreceptor |
| US7422831B2 (en) * | 2005-09-15 | 2008-09-09 | Xerox Corporation | Anticurl back coating layer electrophotographic imaging members |
| US7504187B2 (en) * | 2005-09-15 | 2009-03-17 | Xerox Corporation | Mechanically robust imaging member overcoat |
| US7459251B2 (en) * | 2005-12-21 | 2008-12-02 | Xerox Corporation | Imaging member |
| US7527905B2 (en) * | 2005-12-21 | 2009-05-05 | Xerox Corporation | Imaging member |
| US7527906B2 (en) * | 2006-06-20 | 2009-05-05 | Xerox Corporation | Imaging member having adjustable friction anticurl back coating |
| US8169210B2 (en) * | 2009-04-07 | 2012-05-01 | Xerox Corporation | Contactless system and method for electrostatic sensing with a high spatial resolution |
| US8124305B2 (en) * | 2009-05-01 | 2012-02-28 | Xerox Corporation | Flexible imaging members without anticurl layer |
| US8168356B2 (en) | 2009-05-01 | 2012-05-01 | Xerox Corporation | Structurally simplified flexible imaging members |
| US8173341B2 (en) * | 2009-05-01 | 2012-05-08 | Xerox Corporation | Flexible imaging members without anticurl layer |
| US20100297544A1 (en) | 2009-05-22 | 2010-11-25 | Xerox Corporation | Flexible imaging members having a plasticized imaging layer |
| US8278017B2 (en) * | 2009-06-01 | 2012-10-02 | Xerox Corporation | Crack resistant imaging member preparation and processing method |
| US8378972B2 (en) * | 2009-06-01 | 2013-02-19 | Apple Inc. | Keyboard with increased control of backlit keys |
| US8241825B2 (en) | 2009-08-31 | 2012-08-14 | Xerox Corporation | Flexible imaging member belts |
| US8003285B2 (en) | 2009-08-31 | 2011-08-23 | Xerox Corporation | Flexible imaging member belts |
| US20110136049A1 (en) * | 2009-12-08 | 2011-06-09 | Xerox Corporation | Imaging members comprising fluoroketone |
| US8232030B2 (en) | 2010-03-17 | 2012-07-31 | Xerox Corporation | Curl-free imaging members with a slippery surface |
| US8343700B2 (en) | 2010-04-16 | 2013-01-01 | Xerox Corporation | Imaging members having stress/strain free layers |
| US8541151B2 (en) | 2010-04-19 | 2013-09-24 | Xerox Corporation | Imaging members having a novel slippery overcoat layer |
| US8404413B2 (en) | 2010-05-18 | 2013-03-26 | Xerox Corporation | Flexible imaging members having stress-free imaging layer(s) |
| US8470505B2 (en) | 2010-06-10 | 2013-06-25 | Xerox Corporation | Imaging members having improved imaging layers |
| US8394560B2 (en) | 2010-06-25 | 2013-03-12 | Xerox Corporation | Imaging members having an enhanced charge blocking layer |
| US8475983B2 (en) | 2010-06-30 | 2013-07-02 | Xerox Corporation | Imaging members having a chemical resistive overcoat layer |
| US8263298B1 (en) | 2011-02-24 | 2012-09-11 | Xerox Corporation | Electrically tunable and stable imaging members |
| US8465892B2 (en) | 2011-03-18 | 2013-06-18 | Xerox Corporation | Chemically resistive and lubricated overcoat |
| US8850908B2 (en) * | 2012-10-09 | 2014-10-07 | Xerox Corporation | Elastomeric parallel stage with flexural hinges to provide multi-degree-of-freedom sensitivity of an aerodynamically floated probe head to disturbance in 3D space |
| US9017907B2 (en) | 2013-07-11 | 2015-04-28 | Xerox Corporation | Flexible imaging members having externally plasticized imaging layer(s) |
| US9201318B2 (en) | 2013-07-17 | 2015-12-01 | Xerox Corporation | Polymer for charge generation layer and charge transport layer formulation |
| US9046798B2 (en) | 2013-08-16 | 2015-06-02 | Xerox Corporation | Imaging members having electrically and mechanically tuned imaging layers |
| US9091949B2 (en) | 2013-08-16 | 2015-07-28 | Xerox Corporation | Imaging members having electrically and mechanically tuned imaging layers |
| US9017908B2 (en) | 2013-08-20 | 2015-04-28 | Xerox Corporation | Photoelectrical stable imaging members |
| US9075327B2 (en) | 2013-09-20 | 2015-07-07 | Xerox Corporation | Imaging members and methods for making the same |
| CN109782152B (zh) * | 2017-11-14 | 2024-03-12 | 合肥欣奕华智能机器股份有限公司 | 基板检测装置及其检测基板的方法 |
| WO2019161256A2 (en) * | 2018-02-15 | 2019-08-22 | The Charles Stark Draper Laboratory, Inc. | Electrostatic motor |
| US12282053B1 (en) | 2022-10-10 | 2025-04-22 | Cobham Advanced Electronic Solutions Inc. | Hybrid circuit board |
| US12282041B1 (en) * | 2022-10-10 | 2025-04-22 | Cobham Advanced Electronic Solutions Inc. | Non-contact circuit testing systems and methods |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898001A (en) * | 1973-08-14 | 1975-08-05 | Xerox Corp | Electrometer system for non-contact detection of electrostatic charge on a moving electrostatographic imaging surface |
| US4134137A (en) * | 1976-11-01 | 1979-01-09 | Xerox Corporation | Single wire microelectrometer imaging system |
| US4265990A (en) * | 1977-05-04 | 1981-05-05 | Xerox Corporation | Imaging system with a diamine charge transport material in a polycarbonate resin |
| US4306008A (en) * | 1978-12-04 | 1981-12-15 | Xerox Corporation | Imaging system with a diamine charge transport material in a polycarbonate resin |
| US4299897A (en) * | 1978-12-15 | 1981-11-10 | Xerox Corporation | Aromatic amino charge transport layer in electrophotography |
| US4233384A (en) * | 1979-04-30 | 1980-11-11 | Xerox Corporation | Imaging system using novel charge transport layer |
| US4450489A (en) * | 1981-12-28 | 1984-05-22 | Hughes Aircraft Company | Floating disc photoconductive film reader |
| US4439507A (en) * | 1982-09-21 | 1984-03-27 | Xerox Corporation | Layered photoresponsive imaging device with photogenerating pigments dispersed in a polyhydroxy ether composition |
| US5175503A (en) * | 1990-12-28 | 1992-12-29 | Xerox Corporation | Ascertaining imaging cycle life of a photoreceptor |
| US5703487A (en) * | 1996-01-11 | 1997-12-30 | Xerox Corporation | Detection of charge deficient spot susceptibility |
| US6008653A (en) * | 1997-10-30 | 1999-12-28 | Xerox Corporation | Contactless system for detecting microdefects on electrostatographic members |
-
1997
- 1997-10-30 US US08/961,436 patent/US6119536A/en not_active Expired - Fee Related
-
1998
- 1998-10-22 JP JP30088698A patent/JPH11231588A/ja not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007108173A (ja) * | 2005-10-11 | 2007-04-26 | Xerox Corp | 帯電可能表面上の欠陥点を検出するためのコンタクトレスシステム |
| KR20130137585A (ko) * | 2010-07-01 | 2013-12-17 | 더 리젠츠 오브 더 유니버시티 오브 미시건 | Ｏｖｊｐ 프린트 헤드 위치의 가스 쿠션 컨트롤 방법 및 장치 |
| CN117308810A (zh) * | 2023-11-28 | 2023-12-29 | 乐山市通达交通勘察设计有限责任公司 | 一种隧道变形检测装置 |
| CN117308810B (zh) * | 2023-11-28 | 2024-02-06 | 乐山市通达交通勘察设计有限责任公司 | 一种隧道变形检测装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US6119536A (en) | 2000-09-19 |
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