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1. 发明专利

JPH10142062A ROLL FOR MEASURING TEMPERATURE OF METALLIC STRIP 失效
公开(公告)号：JPH10142062A
公开(公告)日：1998-05-29
申请号：JP30443196
申请日：1996-11-15
申请人： KAWASAKI STEEL CO
发明人： TAKECHI SHINICHI , OOTSUKI MIRAI
IPC分类号： G01J5/08 , G01J5/58
摘要： PROBLEM TO BE SOLVED: To enable easy and inexpensive remodeling to a temperature-measuring roll and facilitate maintenance, by measuring a temperature of a metallic strip from a radiation energy taken from an inner face of a hollow roll which is processed to a black body. SOLUTION: A silicon, inorganic or the like blackening paint 9 is uniformly applied to an inner face of a hollow roll 1 with the utilization of a conduction hole 7 of an axial part 1a, so that an emissivity of the inner face of the hollow roll 1 is made close to an emissivity of a perfect black body, namely, 1.0. A radiation energy of the inner face of the hollow roll 1 guided from one end part 6a of an optical fiber cable 6 is detected by a radiation thermometer 8 and converted to an electric signal. The electric signal is output as a temperature of a metallic strip S to a temperature indicator 5. In the constitution, since the optical fiber cable 6 can be always easily attached and detected while the hollow roll 1 is set at an annealing furnace, the roll is not necessary to be exchanged every time the cable is broken. Moreover, a temperature sensor can be calibrated easily. Accordingly, measuring accuracy can be maintained high at all times.

2. 发明专利

JPH07146179A TEMPERATURE MEASUREMENT METHOD AND RADIATION THERMOMETER 失效
公开(公告)号：JPH07146179A
公开(公告)日：1995-06-06
申请号：JP29356893
申请日：1993-11-24
申请人： KAWASAKI STEEL CO
发明人： OOTSUKI MIRAI , TORAO AKIRA
IPC分类号： G01J5/00 , G01J5/60
摘要： PURPOSE:To achieve emissivity correction even if the emissivity accumulation ratio does not change and only the emissivity ratio changes by obtaining the temperature of a body to be measured according to the ratio of the emissivity ratio which is obtained by converting the accumulation ratio of the emissivity ratio based on the brightness temperature. CONSTITUTION:The combination of the optimum wavelength for each steel type and the relational expression between an accumulation ratio E3 of an optimum emissivity ratio and a ratio R3 of the emissivity ratio are stored 4 in advance. When measuring temperature, the information of a steel plate 1 is given to the storage part 4, the combination of the optimum wavelength of the steel plate 1 is sent to a first operation part 5, and the relational expression between the ratio E3 and the ratio R3 is sent to a second operation part 6. Then, an optical system 2 takes in the radiation light from the steel plate 1 and a light reception part 3 measures brightness temperature S1-S3 of three different wavelengths lambda1-lambda3 by built-in spectroscope and photoelectric converter. The temperatures S1-S3 are used and the operation part 5 obtains light E3 for the combination of two wavelengths. The operation part 6 inputs the result and calculates a ratio R3 and a third operation part 7 uses the calculation result of the ratio R3 and the temperatures S1-S3 to calculate a temperature T of the steel plate 1.

3. 发明专利

JPH0843212A METHOD AND INSTRUMENT FOR MEASURING TEMPERATURE BY MULTICOLOR RADIATION THERMOMETER 失效
公开(公告)号：JPH0843212A
公开(公告)日：1996-02-16
申请号：JP17806694
申请日：1994-07-29
申请人： KAWASAKI STEEL CO
发明人： OOTSUKI MIRAI , TORAO AKIRA , TAKECHI SHINICHI , GOTO TAKATOSHI
IPC分类号： G01K13/04 , G01J5/10 , G01J5/60
摘要： PURPOSE:To automatically prepare an emissivity characteristic function on-line at the time of measuring the temperature of an object by using a multicolor radiation thermometer which makes temperature correcting calculation by using the emissivity characteristic function prepared beforehand. CONSTITUTION:In the temperature measuring instrument provided with two detectors 10 which measure two luminance temperatures of a steel plate S moving on a line under different conditions, a storage device 12 which stores an emissivity characteristic function prepared beforehand against the same kind of steel plate S, and second computing element 16 which finds the temperature of the steel plate S by performing temperature correcting calculation by using the two luminance temperatures detected by the detectors 10 and the characteristic function read out from the device 12, a temperature measuring roll 22 which can be selectively brought into contact with or separated form the steel plate S and third to fifth computing elements 26, 28, and 30 which calculate spectral emissivity epsilon1 and epsilon2 from the two luminance temperatures detected by the detectors 10 and the temperature simultaneously detected at the roll 22, find emissivity characteristic functions, and stores the functions in the storage device 12 are provided.

4. 发明专利

JPH0526797A METHOD AND DEVICE FOR MEASURING BREAK-DOWN PARTICLE TYPE MATERIAL 失效
公开(公告)号：JPH0526797A
公开(公告)日：1993-02-02
申请号：JP20755791
申请日：1991-07-24
申请人： KAWASAKI STEEL CO
发明人： OOTSUKI MIRAI , YOKOO MASAKAZU , MORIYA SUSUMU
IPC分类号： G01N9/24
摘要： PURPOSE:To enable accurate determination of particle concentration in a liquid sample with unknown particle concentration by measuring the particles in liquid or gas in the region where beam waist volume and acoustic wave generation rate are in linear relation. CONSTITUTION:A sample liquid is sent to a cell 10. Optical system components such as the transmittance of a polarization filter 12, laser beam diameter and beam waist position, etc., are automatically adjusted so that the beam waist volume is set at maximum. Then, a laser beam is directed from a YAG pulse laser 11 to the cell 10, adjusted automatically similarly to the initial adjustment and the beam waist volume is calculated 33. After setting the beam waist volume to a value close to the initial set value, the particles are measured 28. By repeating this measurement, the relation between the beam waist volume and acoustic wave generation rate is examined 30 based on the result, and the existence of a linear relation is investigated 31. If they are not in linear relation, the beam waist volume is reset to a value smaller than the set value measured immediately before and the existence of linear relation for the set value is reinvestigated. If they are in linear relation, the volume setting is terminated and the continuous measurement of particles is performed.

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