• 제목/요약/키워드: Non-contact Sensor

검색결과 294건 처리시간 0.034초

원격작업의 효율성 향상을 위한 단일 홀센서 비접촉식 전자 조이스틱 (Non-contact Electronic Joystick with a Hall Sensor for Effective Tele-operation)

  • 김홍철;강대훈;이장명
    • 제어로봇시스템학회논문지
    • /
    • 제12권4호
    • /
    • pp.358-363
    • /
    • 2006
  • This paper demonstrates a new non-contact electronic joystick using single hall sensor which detects a horizontal vector of the magnetic field. Furthermore, in this paper, it is mathematically modeled that nonlinear characteristics between the output of hall sensor and the movement of joystick bar. The dynamic horizontal vector of magnetic flux is detected by the hall sensor while a permanent magnet is rotated with the joystick bar, which has two dimension detecting area. Using the nonlinear adjustment equations, the output signals of hall sensor have been linearized to give higher accuracy in the two dimension movement. Finally, through the real experiments, it is showed that the single hall sensor structure mechanism is superior to the dual sensor structure in sensing the two-dimensional motion without offset.

표면 가공형 캐비티 압력센서를 이용하여 비전도성 물질용 패키지 기술에 전기적 제어방식 연구 (The Electric Control Method on the Packaging Technology for Non-Conductive Materials Using the Surface Processing Cavity Pressure Sensor)

  • 이선종;우종창
    • 한국전기전자재료학회논문지
    • /
    • 제33권5호
    • /
    • pp.350-354
    • /
    • 2020
  • In this study, a pressure sensor for each displacement was fabricated based on the silicon-based pressure sensor obtained through simulation results. Wires were bonded to the pressure sensor, and a piezoresistive pressure sensor was inserted into the printed circuit board (PCB) base by directly connecting a micro-electro-mechanical system (MEMS) sensor and a readout integrated circuit (ROIC) for signal processing. In addition, to prevent exposure, a non-conductive liquid silicone was injected into the sensor and the entire ROIC using a pipette. The packaging proceeded to block from the outside. Performing such packaging, comparing simple contact with strong contact, and confirming that the measured pulse wavelength appears accurately.

비접촉 레이저 광센서의 성능 향상을 위한 센서보정에 관한 연구 (Development of a Sensor Calibration to Enhance the Performance of a Non-contact Laser Optical Sensor Unit)

  • 서평원;유영기;오춘석;변종환
    • 대한전기학회:학술대회논문집
    • /
    • 대한전기학회 2006년 학술대회 논문집 정보 및 제어부문
    • /
    • pp.579-581
    • /
    • 2006
  • Flat panel image display devices such as TFT LCD and PDP have required more large area and high quality control components. To control the qualities of the components, measurements of the flatness of a plate glass has been required. In order to measure the shape of the specular objects, Non-Contact Optical Sensor using Hologram laser unit was proposed. The sensor has a optical system that is composed of a Hologram laser and objective lens. The temperature of the sensor body is controlled by TEC(Thermoelectric Cooler) to maintain the same wavelength of the diode laser. In this research, we proposed the calibration scheme to make sensor real time measuring sensor. From the experimental results we see that the proposed sensor unit can measure the position of the glass surface in rial time.

  • PDF

Malus의 편광법칙을 이용한 EPAS용 비접촉 torque sensor 개발 (Development of the Non-Contact Torque Sensor for EPAS Using Maluss Polarization Law)

  • 노병옥;박호;강판식
    • 대한기계학회논문집A
    • /
    • 제25권7호
    • /
    • pp.1039-1046
    • /
    • 2001
  • Among the automotive steering systems, an Electric Power Assisted steering (EPAS) system utilizes an electronically controlled electric motor to provide steering assistance to the driver. The key components of the EPAS system are torque sensor, ECU (Electronic Control Unit), and DC Motor. The most important component of the EPAS is the torque sensor. The conventional torque sensor has complicated mechanical mechanism of torque detection. However, we suggest a non-contact torque sensor for EPAS using Maluss polarization law. It was found that the sensor exhibited not only excellent linearity but also superior characteristics of hysteresis, temperature and vibration.

광촉침법에 의한 비접촉 3차원 형상측정에 관한 연구 (A Study on Non-contact Measurement of 3D-Objects by Optical Probe Method)

  • 강영준;신성국;삼호융지
    • 한국정밀공학회지
    • /
    • 제12권4호
    • /
    • pp.119-126
    • /
    • 1995
  • This paper presents a non-contact measuring system using one point measuring method to measure surface profiles of dies and clay models for practical use in the field of production engineering. The system has a laser beam probe similar to a measuring probe in a contact measuring system and CCD linear sensor used to detect 300mm measurement range, displacement of measured surfaces, from an origin. There is no mechanical interference between this measuring system and a measured surface in this system. In this measuring system, it was needed 500-600ms including data processing time to measure one point. The experiments showed that the standard deviation was 800 .mu.m and the reproducibility was also 100-210 .mu. m.

  • PDF

비금속 배관에서의 원격 2 축 굽힘 진동 측정을 위한 동박 패치형 자기 센서의 제안 (Proposition of copper-foil magnetic sensor for the two-axis remote measurement of bending vibration of a non-metallic cylinder)

  • 김진기;한순우;김윤영
    • 한국소음진동공학회:학술대회논문집
    • /
    • 한국소음진동공학회 2007년도 추계학술대회논문집
    • /
    • pp.322-325
    • /
    • 2007
  • This paper suggests a non-contact sensor for measuring bending vibration of a non-metallic cylinder in two orthogonal directions simultaneously. Recent research shows that a solenoid can pick up bending vibrations of a nonmetallic cylinder based on the reversed Lorentz force mechanism if an electrical conductive patch is attached to the cylinder. In this work, pairs of specially designed patches are used to make two independent paths for the current induced by bending vibrations, which enables the measurement of bending vibrations along two orthogonal directions simultaneously. The working performance of the developed sensor was verified by using two accelerometers.

  • PDF

비금속 배관에서의 원격 2축 굽힘 진동 측정을 위한 동박 패치형 자기 센서의 제안 (Proposition of Copper - Foil Magnetic Sensor for the Two-axis Remote Measurement of Bending Vibration of a Non-metallic Cylinder)

  • 김진기;한순우;김윤영
    • 한국소음진동공학회논문집
    • /
    • 제18권4호
    • /
    • pp.381-385
    • /
    • 2008
  • This paper suggests a non-contact sensor for measuring bending vibration of a non-metallic cylinder in two orthogonal directions simultaneously. Recent research shows that a solenoid can pick up bending vibrations of a nonmetallic cylinder based on the reversed Lorentz force mechanism if an electrically conductive patch is attached to the cylinder. In this work, pairs of specially designed patches are used to make two independent paths for the current induced by bending vibrations, which enables the measurement of bending vibrations along two orthogonal directions simultaneously. The working performance of the developed sensor was verified by using two accelerometers.

비접촉 진동 검출을 위한 유도성 근접센서모듈 개발 (Development of the Inductive Proximity Sensor Module for Detection of Non-contact Vibration)

  • 남시병;윤군진;임수일
    • 한국컴퓨터정보학회논문지
    • /
    • 제16권5호
    • /
    • pp.61-71
    • /
    • 2011
  • 금속물체의 피로도를 측정하기 위하여 고속으로 진동시키면서 비접촉으로 정밀하게 변위를 측정하는 방법에 대한 연구가 많이 이루어지고 있다. 비접촉 고속 진동 검출센서들은 와류 센서나 레이저 센서들을 주로 사용하고있지만 매우 고가이다. 최근 저가의 유도성 센서를 고속 진동검출에 적용하려는 연구가 이루어지고 있으나 아직은 초보단계이다. 본 연구에서는 저가의 유도성 센서를 이용하여 비접촉으로 고속 진동을 검출하는 새로운 근접 센서모듈 설계방법을 제안하였다. 기존의 유도성 센서모듈들은 검파, 적분, 및 증폭과정을 통하여 변위를 검출하기 때문에 아날로그회로 특성상 잡음에 약하고 적분과정에서 변위 검출속도 저하의 요인이 된다. 제안된 방법은 AD변환기(Analog to Digital converter)를 사용하지 않고 진동 주파수신호를 직접 디지털 신호로 변환하는 새로운 방법으로 아날로그 잡음의 영향을 적게 받으며 고속으로 신호를 처리할 수 있는 장점이 있다. 성능 평가를 위하여 셰이커로 진동 주파수를 30Hz부터 1,100Hz 까지 일정간격으로 금속편을 진동시키면서 제안된 센서 모듈을 이용하여 비접촉으로 진동 신호를 검출하였다. 실험결과 비접촉 근접 거리 5mm 이내에서 진동 주파수 검출범위는 DC에서 1,100Hz까지 측정할 수 있었으며 진동 폭의 해상도는 $20{\mu}m$로 나타났다. 따라서 제안된 유도성 센서모듈은 정밀 비접촉 고속 진동검출 센서로서 충분한 성능을 가지고 있다고 평가된다.

평판 투명 물체의 형상측정을 위한 비접촉식 광센서 개발 (Development of a noncontact optical sensor for measuring the shape of transparent plates)

  • 윤상필;유영기
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 제어로봇시스템학회 2000년도 제15차 학술회의논문집
    • /
    • pp.214-214
    • /
    • 2000
  • This paper deals with the non contact optical sensor to measure the shape of transparent plates such as glass panel of LCD(Liquid Crystal Display). The conventional methods to obtain the shape or thickness of a transparent plates are contact type sensor such as LVOT(Linear Variable Differential Transformer). Due to the contact between the tip of the sensor and the surface of objects, the tip is abraded. In addition, the high temperature glass casting makes the size of sensor body changed. These reasons makes the sensor degraded. In this paper, to overcome these problem, we proposed a low cost noncontact optical sensor this is composed of the Hologram laser unit of a CD-Pickup and a plastic lens. To evaluate the performance of the proposed optical sensor, a series of experiments were performed for various measurement condition. Based upon observation of the experimental result, the developed sensor shows good result for measuring the shape of transparent plates.

  • PDF

윙립 두께 측정용 비접촉식 검사 시스템에 관한 실험적 연구 (Experimental Study on Non-contact Type Inspection System for Wing Rib Thickness Measurement)

  • 이인수;김해지;안명섭
    • 한국기계가공학회지
    • /
    • 제13권6호
    • /
    • pp.104-110
    • /
    • 2014
  • This paper presents a non-contact inspection system for automatically measuring the thickness of an aircraft wing rip product. In order to conduct the inspection of the wing rib thickness automatically, a non-contact laser displacement sensor, end-effector, and a robot were selected for use. The non-contact type inspection system was evaluated by measuring the measurement deviation of the rotation direction of a C-type yoke end-effector and the transfer direction of a V-slim end-effector. In addition, the non-contact inspection system for wing rib thickness measurements was validated through thickness measurements of a web, flange, and stiffener.