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    • 41. 发明申请
    • Method And Device For Measuring Width Direction End Position Of Stripe Body, And Method And Device For Measuring Width Direction Center Position Of Stripe Body
    • 用于测量条纹体的宽度方向端部位置的方法和装置,以及用于测量条纹体的宽度方向中心位置的方法和装置
    • US20080094073A1
    • 2008-04-24
    • US11666113
    • 2005-09-12
    • Koichi MatsumotoTakeo Yamada
    • Koichi MatsumotoTakeo Yamada
    • G01R27/00G01B21/06
    • G01S13/88G01B15/00
    • A microwave sending antenna 3R and a microwave receiving antenna 4R are provided to a right-side furnace wall 1R, and the system is devised so that the microwaves emitted from the microwave sending antenna 3R are reflected by the right-side edge of a cold-rolled steel plate 2, and the reflected waves are received by the microwave receiving antenna 4R. Similarly, a microwave sending antenna 3L and a microwave receiving antenna 4L are provided to a left-side furnace wall 1L, and the system is devised so that the microwaves emitted from the microwave sending antenna 3L are reflected by the left-side edge of the cold-rolled steel plate 2, and the reflected waves are received by the microwave receiving antenna 4L. If the time from the sending of the microwaves until the receiving of the reflected waves is designated as t, and the velocity of the microwaves is designated as c, then the distance to the object reflecting the microwaves is determined from t·c/2. It is possible to provide a method for measuring the width-direction end position of a material strip with which noise and atmosphere have little effect, installation is easy, and there is little mechanical interference with the material strip.
    • 微波发送天线3R和微波接收天线4R设置在右侧炉壁1R上,并且设计了系统,使得从微波发送天线3 R发射的微波被右侧边缘 并且反射波被微波接收天线4R接收。类似地,微波发送天线3L和微波接收天线4L设置在左侧炉壁1L上, 并且设计了系统,使得从微波发送天线3L发射的微波被冷轧钢板2的左侧边缘反射,并且反射波被微波接收天线4L接收。如果 从发送微波到接收反射波的时间被指定为t,微波的速度被指定为c,则从tc / 2确定到反映微波的物体的距离。 可以提供一种用于测量噪声和气氛几乎没有影响的材料条的宽度方向端部位置的方法,安装容易,并且与材料带几乎没有机械干扰。
    • 45. 发明授权
    • Method and apparatus for continuously measuring distance utilizing eddy
current and having temperature difference influence elimination
    • 使用涡流连续测量距离并具有温差影响消除的方法和装置
    • US4567435A
    • 1986-01-28
    • US583021
    • 1984-02-23
    • Takeo YamadaTomohisa YamamotoSeigo AndoYoshihiro Kawase
    • Takeo YamadaTomohisa YamamotoSeigo AndoYoshihiro Kawase
    • G01B7/00G01B7/02G01B7/14G01D3/028G01D5/20G01F23/26G01N27/90G01F23/00G01R33/12
    • G01B7/023G01B7/10G01B7/102
    • The distance between the tip of a probe and a high-temperature object of measurement is continuously and accurately measured by arranging the probe comprising a primary coil and a pair of secondary coils substantially vertically to the object of measurement; inducing an AC voltage (e.sub.1) and an AC voltage (e.sub.2) respectively in the pair of secondary coils by means of an AC magnetic field of the primary coil excited by an output voltage (e.sub.out) of a positive feedback amplifier; generating an eddy current in the object of measurement by means of the AC magnetic field of the primary coil to generate another AC magnetic field in the direction opposite to that of the AC magnetic field of the primary coil; impressing an equal DC voltage onto each of the pair of secondary coils to detect respectively a DC voltage (E.sub.1) and a DC voltage (E.sub.2) of the pair of secondary coils; calculating an error voltage (e.sub.4) corresponding to the difference in temperature between the pair of secondary coils, on the basis of the output voltage (e.sub.out) and a value of difference (E.sub.3) between the DC voltages (E.sub.1) and (E.sub.2); and feeding a value of difference (e.sub.3") between the error voltage (e.sub.4) and a value of difference (e.sub.3) between the AC voltages (e.sub.1) and (e.sub.2), back to the positive feedback amplifier, thereby determining the output voltage (e.sub.out) of the positive feedback amplifier, from which the influence of the difference in temperature between the pair of secondary coils has been eliminated.
    • 通过将包括初级线圈和一对次级线圈的探针基本垂直地布置到测量对象上,连续且精确地测量探针的尖端和高温对象物之间的距离; 通过由正反馈放大器的输出电压(eout)激励的初级线圈的AC磁场分别在一对次级线圈中产生AC电压(e1)和AC电压(e2); 通过初级线圈的交流磁场在测量对象中产生涡流,以产生与初级线圈的AC磁场相反方向的另一AC磁场; 在所述一对次级线圈中的每一个上施加相等的直流电压以分别检测所述一对次级线圈的直流电压(E1)和直流电压(E2); 基于输出电压(eout)和直流电压(E1)和(E2)之间的差值(E3)计算对应于一对次级线圈之间的温度差的误差电压(e4); 并且将误差电压(e4)和AC电压(e1)和(e2)之间的差值(e3)之间的差值(e3“)馈送回到正反馈放大器,由此确定输出电压 (eout),从而消除了一对次级线圈之间的温度差的影响。
    • 46. 发明授权
    • Method for continuously measuring surface temperature of heated steel
strip
    • 连续测量加热钢带表面温度的方法
    • US4553854A
    • 1985-11-19
    • US558943
    • 1983-12-07
    • Takeo YamadaNaoki HaradaKiyotaka Imai
    • Takeo YamadaNaoki HaradaKiyotaka Imai
    • G01J5/00G01J5/52G01J5/10G01K13/06
    • G01J5/52G01J5/0022
    • A method for continuously measuring the surface temperature of a heated steel strip, includes providing a flat reflecting plate so as to face a heated steel strip at an angle of inclination (.alpha.) with the steel strip. A radiation thermometer measures the amount of heat radiation energy which is emitted from an arbitrary point on the surface of the steel strip and comes directly into the radiation thermometer; and the thermometer also measures the total sum of heat radiation energy which (a) is emitted from a different point on the surface of the steel strip and comes into the radiation thermometer after having been reflected at least twice between the steel strip and the reflecting plate and, (b) is emitted from a final reflecting point, on the steel strip, of the heat radiation from said different point. The emissivity of the steel strip is computed on the basis of said total sum of the energies of the heat radiations and the amount of energy of the heat radiation from the arbitrary point; and the surface temperature of the steel strip is measured on the basis of the computed emissivity and the amount of energy of a reference heat radiation. The final angle of reflection (.theta.) from the steel strip of the heat radiation from said different point, and the angle of inclination (.alpha.) of the reflecting plate, are set at values which satisfy specific limits.
    • 一种用于连续测量加热钢带的表面温度的方法包括提供平板反射板,以便以与钢带倾斜角度(α)相对的方式面对加热的钢带。 辐射温度计测量从钢带表面上的任意点发射的热辐射能量,并直接进入辐射温度计; 并且温度计还测量(a)从钢带表面上的不同点发射并在钢带和反射板之间反射至少两次之后进入辐射温度计的总辐射能量的总和 并且(b)从所述不同点的热辐射从钢带上的最终反射点发射。 根据热辐射能量的总和和来自任意点的热辐射能量的量,计算钢带的发射率; 并根据计算的发射率和参考热辐射的能量来测量钢带的表面温度。 来自所述不同点的热辐射的钢带的最终反射角(θ)和反射板的倾斜角(α)被设定为满足特定极限的值。