KR870003374A - Displacement measuring device and method - Google Patents

Abstract

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Description

Displacement measuring device and method

Since this is an open matter, no full text was included.

1 is a schematic view showing a configuration according to a first chamber of the present invention.

2a to 2e are views showing the movement of the filter as seen in the arrow II-II of FIG.

Code description for main part

10: broadband electron radiation source 14: optical fiber

16: blue filter 16 ': ruby sphere

18 fiber optic 22 detector

28: ruby sphere 34: colored sphere

36,38: colored sphere 40: diaphragm

44: spherical body 48: diaphragm

58 ruby sphere body 62: cylindrical transparent element

64: color filter area 66: transparent area

68: inclined edge portion 70: modulation device

76 fuselage 78 diaphragm

91,92,93: colored spheres 94,95,96: photodetector

101,102: colored sphere 103,104: optical response element

Claims (26)

Apparatus for measuring the displacement of an object or object, comprising: a light source for propagating a multicolored light signal along a path to a detector capable of detecting the intensity of incident radiation at a number of different wavelengths, and mechanically acting on the object to move with the object And a radiation modulating means connected to each other, wherein the displacement of the object causes a displacement of the radiation modulating means in the path to change the spectral distribution of the light beam reaching the detector. The method according to claim 1, wherein the radiation modulating means attenuates the intensity of the transmitted wavelength to a different degree, and is composed of a filter mechanically connected to the object so that the movement of the object moves the filter to block the optical signal propagated from the light source. Device of varying bar. The device of claim 2 wherein the filter consists of glass coated with a high temperature ceramic glaze. The method according to claim 2 or 3, wherein the radiation modulating means comprises a second filter that attenuates the intensity of the transmitted wavelength to a different degree, the second filter being mounted on an object to move the second filter due to a temperature change of the object. The second filter causes the degree of blocking the radiation signal propagated by the light source to be changed. The device of claim 2, wherein the filter is in the form of colored transparent spheres in which not only the radiation modulation is effected but also the focusing action takes place. The device of claim 5 wherein the filter consists of a plurality of colored transparent spheres arranged in an elongated arrangement. The method according to claim 6, wherein a plurality of spheres are arranged in a straight line, wherein the major surfaces of adjacent spheres in this straight array gradually urge the main surfaces of the next spheres so that the displacement of the object is dependent on the course of the entire sphere arrangement relative to the course. Arrangement of bars to cause directional displacement. An apparatus according to claim 6, wherein a plurality of spheres are arranged in a circular path around the axis of rotation of the object to detect angular displacement of the rotating object and the main surfaces of adjacent spheres are arranged in point contact. An apparatus according to claim 5 comprising a plurality of colored transparent spheres which can be moved in different directions in the course according to different displacements to be measured and have different spectral properties. The device of claim 2, wherein the filter consists of a cylindrical element that is at least partially transparent so that light is incident. The apparatus of claim 10 wherein the color absorption characteristics of the cylindrical element vary with the length of the element. 12. The filter according to claim 11, wherein the filter consists of a cylindrical element having a colored portion and a transparent portion, and the transition portion between these colored portions and the transparent portion consists of edges that are severely inclined with respect to the longitudinal axis of the element. Device. The device of claim 11 wherein the filter consists of a transparent cylindrical element comprising a pigmented pigment, wherein the density of the pigmented pigment is reduced along the length of the element. The device of claim 2 wherein the filter consists of a conical element that is at least partially transparent for incident light. The optical fiber according to any one of claims 1 to 14, which is made by an optical fiber of a light transmission from a light source to a radiation modulation means and a light transmission from a radiation modulation means to a detector, and an end of the optical fiber is a gap in which the radiation modulation means moves. Arrangements of bars separated by. 16. The method of any of claims 1-15, wherein the detector is adapted to monitor the intensity ratio of incident light at two predetermined wavelengths when the radiation modulating means is moved with the object, the detector being capable of detecting a previously known displacement of the object. A device as measured in advance so that the ratio measured at both wavelengths is equal to the previously measured variation of the body. 16. The output signal X, Y of the receptor according to any one of claims 1-15, wherein the detector monitors the color of light incident from the radiation modulating means using at least two color receptors having respective response characteristics. In the chromaticity diagram, the values of x and y can be calculated by simple analog manipulation of the output signal, where pλ represents the spectral output distribution at wavelength λ and xλ and yλ correspond to the respective response characteristics of the receptor. The device of the bar which is a color symmetry function. The apparatus of claim 17 wherein the color receptors are used in parallel. The device of claim 17, wherein the color receptors are used in series. 20. The device of claims 17-19, wherein each color receptor comprises each color filter having different color response properties. The apparatus of claim 20 wherein the means for setting the values of x and y in a chromaticity diagram A device consisting of operating elements capable of obtaining the value of. The apparatus of any one of claims 1-14, wherein the detector is configured with a Fourier transform spectro meta. 23. A single detector according to claim 22, wherein the Fourier transform spectrometer receives a partial transmission vibrating tilt receiving light beam from the radiation modulating means and an optical interference pattern from a pair of tilts arranged before and after the vibration tilting. The device of the configured bar. A method for measuring the displacement of an object, the method comprising: projecting a multicolor ray onto a radiation modulating means mechanically connected to and moving with the object, moving the object so that the radiation modulating means is moved within the path of the beam; Thereby varying the spectral distribution transmitted by the radiation modulating means, and detecting the intensity of the light beam transmitted by the radiation modulating means at a plurality of different wavelengths to measure the displacement. How to measure displacement of an object. The method of claim 22, further comprising the steps of: measuring the intensity of the light transmitted by the radiation modulating means at the two predetermined wavelengths, calculating the ratio of the intensity at these two wavelengths, and comparing this ratio with the ratio measured at different displacements Calculating a displacement of the object with the radiomodulator. The method of claim 23, wherein a plurality of intensity ratios are calculated according to the required sensitivity. ※ Note: The disclosure is based on the initial application.