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    • 1. 发明授权
    • Temperature measuring method and apparatus
    • 温度测量方法和仪器
    • US06786634B2
    • 2004-09-07
    • US10263839
    • 2002-10-04
    • Miyuki HashimotoKenji YanoMisao IwataKuniyuki KitagawaNorio Arai
    • Miyuki HashimotoKenji YanoMisao IwataKuniyuki KitagawaNorio Arai
    • G01J500
    • G01J5/06G01J5/0044G01J5/602G01J2005/0048G01J2005/0077
    • A method of measuring a temperature of an object body in an electric furnace, based on an intensity of a radiant energy emitted from the object body, the electric furnace being provided with an electric heater operable by application of a drive voltage thereto to heat the object body, the method comprising: a radiant-energy detecting step of detecting an intensity of a radiant energy emitted from the object body; a stray-light noise eliminating step of determining as a noise an intensity of a radiant energy of a stray light which is emitted from an inner wall surface of the electric furnace toward the object body and reflected by a surface of the object body, according to a predetermined relationship between the intensity of the radiant energy of the stray light and the drive voltage applied to the electric heater and based on an actually applied value of the drive voltage, and subtracting the intensity of the radiant energy of the stray light determined as the noise, from the detected intensity of the radiant energy emitted from the object body; and a temperature calculating step of calculating a temperature of the object body, based on the intensity of the radiant energy emitted from the object body from which the noise has been removed in the stray-light noise eliminating step. Also disclosed is an apparatus for practicing the method, which may include a shielding device disposed between the furnace walls and the object body.
    • 一种基于从物体发射的辐射能的强度来测量电炉中的物体的温度的方法,电炉设有可通过施加驱动电压而对其进行加热的电加热器 所述方法包括:辐射能量检测步骤,其检测从所述物体发射的辐射能的强度; 根据权利要求1所述的杂散光噪声消除步骤,其中,所述杂散光噪声消除步骤将从所述电炉的内壁表面朝向所述物体并从所述物体的表面反射的杂散光的辐射能强度确定为噪声, 杂散光的辐射能的强度与施加到电加热器的驱动电压之间的预定关系,并且基于实际施加的驱动电压值,并且减去被确定为所述驱动电压的杂散光的辐射能的强度 从被检体发出的辐射能的检测强度; 以及温度计算步骤,基于从杂散光噪声消除步骤中已经从中去除噪声的物体发出的辐射能的强度来计算物体的温度。 还公开了一种用于实施该方法的装置,其可以包括设置在炉壁和物体之间的屏蔽装置。
    • 3. 发明授权
    • Temperature distribution measuring method and apparatus
    • 温度分布测量方法及装置
    • US06817758B2
    • 2004-11-16
    • US10095692
    • 2002-03-13
    • Kenji YanoMisao IwataMiyuki HashimotoKuniyuki KitagawaNorio Arai
    • Kenji YanoMisao IwataMiyuki HashimotoKuniyuki KitagawaNorio Arai
    • G01J500
    • G01J5/602
    • Method and apparatus for measuring a surface temperature of an object body, by calculating a temperature at each picture element of an image of the object body, on the basis of a radiant intensity ratio at each pair of corresponding picture elements of a first and a second image which are obtained with respective radiations having respective first and second wavelengths which are selected from a light emitted from the surface of the body, by a first filter which permits transmission therethrough a radiation having the first wavelength which is selected according to a radiant intensity curve corresponding to a wavelength of a black body at a lower limit of a temperature measurement range, and which is within a high radiant intensity range in which the radiant intensity is higher than a radiant intensity at a normal room temperature, and a second filter which permits transmission therethrough a radiation having the second wavelength which is selected within the high radiant intensity range, such that the second wavelength is different from the first wavelength by a predetermined difference which is not larger than ⅓ of the first wavelength and which is not smaller than a sum of half widths of the first and second wavelengths.
    • 基于第一和第二对象的每对相应图像元素的辐射强度比,通过计算物体的图像的每个像素的温度来测量物体的表面温度的方法和装置 通过第一滤光器从第一和第二波长中选出的具有相应的第一波长和第二波长的光,通过第一滤光片获得的图像,所述第一滤光器允许通过根据辐射强度曲线选择的具有第一波长的辐射 对应于在温度测量范围的下限处的黑体的波长,并且其处于辐射强度高于正常室温下的辐射强度的高辐射强度范围内;以及第二过滤器,其允许 透射通过其中具有在高辐射强度内选择的第二波长的辐射 使得第二波长与第一波长不同的预定差值不大于第一波长的1/3,并且不小于第一和第二波长的半宽度之和。
    • 5. 发明申请
    • Temperature measuring method and apparatus
    • 温度测量方法和仪器
    • US20050002438A1
    • 2005-01-06
    • US10910375
    • 2004-08-04
    • Miyuki HashimotoKenji YanoMisao IwataKuniyuki KitagawaNorio AraiSatoshi Arai
    • Miyuki HashimotoKenji YanoMisao IwataKuniyuki KitagawaNorio AraiSatoshi Arai
    • G01J5/00G01J5/60G01N21/00
    • G01J5/06G01J5/0044G01J5/602G01J2005/0048G01J2005/0077
    • A method of measuring a temperature of an object body in an electric furnace, based on an intensity of a radiant energy emitted from the object body, the electric furnace being provided with an electric heater operable by application of a drive voltage thereto to heat the object body, the method comprising: a radiant-energy detecting step of detecting an intensity of a radiant energy emitted from the object body; a stray-light noise eliminating step of determining as a noise an intensity of a radiant energy of a stray light which is emitted from an inner wall surface of the electric furnace toward the object body and reflected by a surface of the object body, according to a predetermined relationship between the intensity of the radiant energy of the stray light and the drive voltage applied to the electric heater and based on an actually applied value of the drive voltage, and subtracting the intensity of the radiant energy of the stray light determined as the noise, from the detected intensity of the radiant energy emitted from the object body; and a temperature calculating step of calculating a temperature of the object body, based on the intensity of the radiant energy emitted from the object body from which the noise has been removed in the stray-light noise eliminating step. Also disclosed is an apparatus for practicing the method, which may include a shielding device disposed between the furnace walls and the object body.
    • 一种基于从物体发射的辐射能的强度来测量电炉中的物体的温度的方法,电炉设有可通过施加驱动电压而对其进行加热的电加热器 所述方法包括:辐射能量检测步骤,其检测从所述物体发射的辐射能的强度; 根据权利要求1所述的杂散光噪声消除步骤,其中,所述杂散光噪声消除步骤将从所述电炉的内壁表面朝向所述物体并从所述物体的表面反射的杂散光的辐射能强度确定为噪声, 杂散光的辐射能的强度与施加到电加热器的驱动电压之间的预定关系,并且基于实际施加的驱动电压值,并且减去被确定为所述驱动电压的杂散光的辐射能的强度 从被检体发出的辐射能的检测强度; 以及温度计算步骤,基于从杂散光噪声消除步骤中已经从中去除噪声的物体发出的辐射能的强度来计算物体的温度。 还公开了一种用于实施该方法的装置,其可以包括设置在炉壁和物体之间的屏蔽装置。