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"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Absolute position detection method for stroke sensing cylinder

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01B-007/00   
미국특허분류(USC) 702/150 ; 702/158 ; 702/166 ; 364/182 ; 364/474.35
출원번호 US-0998986 (1997-12-29)
우선권정보 KR-0057075 (1997-10-31)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Harness, Dickey & Pierce, P.L.C.
인용정보 피인용 횟수 : 16  인용 특허 : 4
초록

An improved absolute position detection method is provided for a stroke sensing cylinder which includes a magnetic scale detecting step for obtaining a plurality of sine wave form voltages having different phases using a magnetic sensor unit in accordance with a driving operation of the cylinder. A wave form generation step is also provided for converting the sine wave form voltage obtained in the magnetic scale detection step into a square wave form and generating a triangle wave form having the same period as the thusly converted square wave form. A fi...

대표
청구항

[ What is claimed is:] [1.] In a method for detecting a magnetic flux change of a magnetic scale using a plurality of magnetic sensors with respect to the cylinder rod including at least one different magnetic scale processing period in a regularly protruded and recessed portion, signal-processing using a microcomputer and a 1/N-dividing counter, counting the thusly signal-processed wave forms, and judging an absolute position and direction with respect to a stroke of a cylinder, the improved method comprising the steps of:a magnetic scale detecting step...

이 특허를 인용한 특허 피인용횟수: 16

  1. Kunow,Peter; Biester,Klaus. Absolute position encoder. USP2006087091883.
  2. Kemmler, Lothar; Kolbenschlag, Stefan; Schneider, Walter. Control-valve drive with sensor unit for detecting the position of the valve. USP2004066752171.
  3. Kucher,Trent Steven; Raab,Karen Renee; Jiang,Xiangyang. Cylinder rod with position sensor surface markings. USP2007027178446.
  4. Fulkerson, Kurt D.; Arns, Jr., Donald C.; Sechi, Paolo G.. Displacement measurement system and method using magnetic encodings. USP2015038970208.
  5. Sewell, Roger. Linear position sensor. USP2003046556946.
  6. Helal,Didier; Arnaud,Thierry; Lebowsky,Fritz. Method and device for detecting pulses of an incident pulse signal of the ultra wideband type. USP2008067386066.
  7. Kucher,Trent S.; Skinner,Thomas G.. Mount for cylinder position sensor. USP2007017162947.
  8. Krone, John J.; Mikrut, Daniel L.. Mounting apparatus and method for cylinder position sensor. USP2005096941827.
  9. Skinner, Thomas G.. Programmable position sensing system with a memory component. USP2009047519499.
  10. Blakeley, Philip John. System and method for laser-encoding information on hydraulic rods. USP2012058168917.
  11. Arns, Jr.,Donald C.; Garcia,Pablo. System and method of magnetically sensing position of a moving component. USP2007087259553.
  12. Arns, Jr.,Donald C.; Garcia,Pablo. System and method of magnetically sensing position of a moving component. USP2008107439733.
  13. Low,Thomas P.; Clark,C. Bruce; Pelrine,Ronald E.; Eckerle,Joseph S.; Smith,Chris. Systems and methods of recording piston rod position information in a magnetic layer on a piston rod. USP2006016989669.
  14. Low,Thomas P.; Clark,C. Bruce; Pelrine,Ronald E.; Eckerle,Joseph S.; Smith,Chris. Systems for recording position information in a magnetic layer on a piston rod. USP2007127307418.
  15. Low,Thomas P.; Clark,C. Bruce; Pelrine,Ronald E.; Eckerle,Joseph S.; Smith,Chris. Systems of recording piston rod position information in a magnetic layer on a piston rod. USP2006047034527.
  16. Schley,William R.; Chapman,Eric B.; Nguyen,Dan Thanh; Flesch,Lawrence P.; Harper,Sandra Lynn; Stevens,Curtis Edgar. Through-wall position sensor. USP2008077394244.