Abstract:
A micro pressure sensor included within a low-pressure microelectronic device enclosure. The micro pressure sensor employs an electric field created by applying a large voltage potential difference to tiny conductive elements (302,304) within the micro pressure sensor. Electrons emitted via the influence of, and accelerated by, the electric field collide with gas molecules to produce positive ions. The positive ions are then accelerated toward a conductive element (304) coupled to a circuit. The current generated by the ions within the circuit coupled to the micro pressure sensor can be measured to determine the internal pressure within the low-pressure enclosure. The micro pressure sensor is manufactured by standard semiconductor fabrication techniques, and can be economically produced in large volumes.
Abstract:
To provide a method and an equipment that can easily visualize various physical phenomena or chemical phenomena by simultaneously taking in, accumulating, and transferring the information at a plurality of points. Electric charges are injected in potential wells constructed to vary the depth in accord with the magnitude of the physical or chemical quantity , and the physical or chemical quantity is converted into electric charges according to the depth of the potential wells.
Abstract:
Displacement measuring apparatus for measuring the displacement and movement of an object includes an array of sensors having an operative surface and circuitry for producing an electrical output signal whose value is dependent upon the disposition of an electrical/magnetic field producing member along the sensor array. The field producing member is disposed to contact and slide over the operative surface as the object whose displacement is to be measured is moved. The value of the electrical output signal produced by the circuitry is thus dependent upon the position of the field producing member along the sensor array and thus by the position and movement of the object.
Abstract:
A measuring system uses a magnetic scale (5) and a sensing head (6) to measure the deformation of a deformable member (2) and/or one or more of physical quantities, e.g. a strain and internal stress of, or an external force to, the member (2), which are functions of the deformation. The magnetic scale (5) is formed by a succession of discrete, uniformly spaed scaling units (5') each having a pair of magnetic poles (N, S). The magnetic scale (5) is arranged to be displaceable relative to the magnetic sensing head (6) in response to a deformation of the deformable member so that the magnetic pickup head successively senses the passage of magnetic scaling units. An output circuit unit (s, q, w) is connected to the magnetic head (6) for counting the number of magnetic scaling units sensed and produces an electrical output signal representative thereof, and/or one or more of the above physical quantities.
Abstract:
The present invention relates to a method and an apparatus for sensing the bending of a flexible display device using mutual inductance. Further, the present invention relates to the display device and a method of manufacturing the display device. The method for sensing the bending of a flexible display device according to an embodiment of the present invention comprises the steps of: inputting a signal to a first conductive portion mounted on one side of the flexible display device; outputting a signal from a second conductive portion which is mounted on the other side of the display device and faces the first conductive portion by the magnetic flux formed by the signal inputted to the first conductive portion; and recognizing the bending of the flexible display device by using the signal from the second conductive portion. According to embodiments of the present invention, the apparatus of the present invention can recognize the bending of a flexible display device by using the mutual induction.
Abstract:
PURPOSE: A effective cross-sectional area measure system of air-driven is provided to measure the effective cross-sectional area with signal received from the pressure measuring sensor and power measuring element in the state putting on air-driven on the measuring device part by the data acquisition unit, and to improved the accuracy of the measurement on the effective cross-sectional area of air-driven. CONSTITUTION: The effective cross-sectional area measure system of air-driven includes: a measurement base(100); an air supply part; a pressure measurement sensor; and a data acquisition unit. In the state where the measurement base separates the connection bridge(12) of the air-driven(10), The power measuring element is included in order to measure the deformation of the power actuating on the stem(13). The air supply part supplies within air-driven while diversifying the supply quantity of the compressed air. In order to measure the pressure gradient within air-driven in the air supply part with the provided compressed air, the pressure measurement sensor is connected. The data acquisition unit obtains the effective cross-sectional area of air-driven by analyzing and data processing the measurement signal which is input from the pressure measurement sensor and power measuring element. The measurement base includes: an eat plate(120); a stand(130); a support plate(140); an elevating member(150); and a power measuring element. The stand supports the seat plate from the surface. The support plate is connected to the seat plate to be arranged at the lower part of the operation ball(122). The elevating member is ascended and descended installed in the support plate. The power measuring element, which is connected in between the elevating member and stem, measures the change of the power actuating in stem.
Abstract:
본 고안은 열기전력을 이용한 압력센서에 관한 것으로, 상세하게는 압력에 따른 기계적 파형을 자동화 분야의 전기적 신호로 사용하기 적절한 아날로그의 전기 신호로 변환시키기 위하여, 기계적 변위를 열에너지로 바꾸는 발열체부와, 상기 발열체부에 의해 기전력을 발생시키는 열기전력부와, 상기 열기전력부에서 발생한 기전력의 노이즈를 제거하고 증폭하여 정격전압으로 출력시키는 출력부로 구성된 열기전력을 이용한 압력센서에 관한 것이다. 본 고안에 따르면, 유입된 압력에 따라 기계적 변위를 일으키는 작동판과, 상기 작동판의 변위에 의해 통전되고 통전에 의해 변형되며 변형에 의해 전원이 단속되는 반복작동에 의해 펄스 파형의 전압을 생성하는 바이메탈로 구성된 압력센서에 있어서; 상기 바이메탈에 의해 생성된 펄스 파형의 전압에 의해 열에너지를 발생시키는 발열체부와, 상기 발열체부에서 발생된 열에너지에 의해 전압을 발생시키는 열기전력부와, 상기 열기전력부의 출력 전압의 잡음을 제거하고 이를 증폭하여 정격 전압으로 출력하는 출력부를 포함하여 구성된 열기전력을 이용한 압력센서가 제공된다.