CN102989790B - Belt plate shape measuring system - Google Patents

Abstract

The invention discloses a kind of belt plate shape measuring system, by Measurement channel signal conversion module actual for plate shape measurement roller n+k+m Measurement channel plate shape measurement signal recorded, be converted to n+2k+m control plate shape measurement signal, for control panel shape.Its method the fat pipe of plate shape measurement roller middle is resolved into two narrow passages use, when carrying out belt plate shape and controlling, whole plate shape measurement roller is equivalent to total n+2k+m the Measurement channel controlled like this, when not increasing the investment of plate shape measurement roller, improve the precision of Strip Shape Control.

Description

Belt plate shape measuring system

Technical field

The present invention relates to steel rolling technology, particularly a kind of belt plate shape measuring system.

Background technology

In all kinds of milling train of metallurgical works, in order to carry out belt plate shape control, plate shape measurement roller is usually used to measure belt plate shape.Plate shape measurement roller is made up of the Measurement channel of several ring-types, and each Measurement channel has installed pressure sensor in groups in radial direction, when the band steel strained is pressed in plate shape measurement roller, can produce radial load on these pressure sensors.Just can calculate strip tension corresponding on each Measurement channel according to this radial load, thus the plate shape condition of band steel can be recorded.

Theoretically, the width of Measurement channel is more narrow better, but narrowed width can increase Measurement channel number, thus greatly increases the cost of equipment.In addition, generally easily occur " limit wave " at steel edge portion, technological requirement is closeer than being with in the middle part of steel at the Measurement channel of steel edge portion, therefore the Measurement channel of the plate shape measurement roller selected in common engineering has two kinds of width, as shown in Figure 1, the narrow passage of the Measurement channel at two limit places to be width be 26mm about plate shape measurement roller, the fat pipe of the Measurement channel of plate shape measurement roller middle to be width be 52mm.In existing belt plate shape measuring system, because the Measurement channel of plate shape measurement roller mid portion is wider, cause Strip Shape Control precision not high.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of belt plate shape measuring system, is not increasing on plate shape measurement roller cost basis, improves the precision that belt plate shape controls.

For solving the problems of the technologies described above, belt plate shape measuring system of the present invention, comprises plate shape measurement roller, also comprises a Measurement channel signal conversion module;

Described plate shape measurement roller, total Measurement channel number is n+k+m, the number of the Measurement channel on the left side is n, the number of the Measurement channel on the right is m, the number of middle Measurement channel is k, the width of the Measurement channel on the left side equals the width of the Measurement channel on the right, and the width of middle Measurement channel is the twice of the width of the Measurement channel on the left side or the right; N plate shape measurement signal of n the Measurement channel on the left side is from left to right respectively T ₁to T _n, k plate shape measurement signal of k middle Measurement channel is from left to right respectively T _n+1to T _n+k, m plate shape measurement signal of m the Measurement channel on the right is from left to right respectively T _n+k+1to T _n+k+m, n, k, m are positive integer;

Described Measurement channel signal conversion module, for n+k+m the plate shape measurement signal T by described plate shape measurement roller ₁to T _n+k+mconvert n+2k+m control plate shape measurement signal T' to ₁to T' _n+2k+m.

N+2k+m controls with plate shape measurement signal T' ₁to T' _n+2k+mcomputational methods can be as follows: when k is even number:

Measurement channel is when 1 to n interval range, and n plate shape measurement signal of its actual measurement is T ₁to T _n, corresponding control plate shape measurement signal T' _xfor:

T' _x=T _x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to n;

Measurement channel is when n+1 to n+ (k/2) interval range, and the plate shape measurement signal of its actual measurement is T _n+1to T _n+k, corresponding control plate shape measurement signal T' _n+xfor:

When in subscript, x equals 1,

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k,

${T^{\′}}_{n+x}=T_{n+\frac{x}{2}}+\frac{T_{n+\frac{x}{2}+1}-T_{n+\frac{x}{2}}}{4};$

When x in subscript is odd number, when its value is more than or equal to 3 and is less than or equal to k-1,

${T^{\′}}_{n+x}=T_{n+\frac{x-1}{2}}+\frac{3(T_{n+\frac{x-1}{2}+1}-T_{n+\frac{x-1}{2}})}{4};$

Measurement channel is when n+ (k/2)+1 is to n+k interval range, and the plate shape measurement signal of its actual measurement is extremely corresponding control plate shape measurement signal T' _n+k+xfor:

When x in subscript is odd number, when its value is more than or equal to 1 and is less than or equal to k-1,

${T^{\′}}_{n+k+x}=T_{n+\frac{k}{2}+\frac{x+1}{2}}+\frac{(T_{n+\frac{k}{2}+\frac{x-1}{2}}-T_{n+\frac{k}{2}+\frac{x+1}{2}})}{4};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-2,

${T^{\′}}_{n+k+x}=T_{n+\frac{k}{2}+\frac{x}{2}+1}+\frac{3(T_{n+\frac{k}{2}+\frac{x}{2}}-T_{n+\frac{k}{2}+\frac{x}{2}+1})}{4};$

When in subscript, x equals k, ${T^{\′}}_{n+2k}=T_{n+k+1}+\frac{2(T_{n+k}-T_{n+k+1})}{3};$

Measurement channel is when n+k+1 to n+k+m interval range, and the plate shape measurement signal of its actual measurement is T _n+k+1to T _n+k+m, corresponding control plate shape measurement signal T' _n+2k+xfor:

T' _n+2k+x=T _n+k+x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to m; When k is odd number:

Measurement channel is when 1 to n interval range, and n plate shape measurement signal of its actual measurement is T ₁to T _n, corresponding control plate shape measurement signal T' _xfor:

T' _x=T _x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to n;

Measurement channel is when n+1 to n+ ((k+1)/2) interval range, and the plate shape measurement signal of its actual measurement is T _n+1extremely corresponding control plate shape measurement signal T' _n+xfor:

When in subscript, x equals 1, ${T^{\′}}_{n+1}=T_n+\frac{2*(T_{n+1}-T_n)}{3};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-1,

${T^{\′}}_{n+x}=T_{n+\frac{x}{2}}+\frac{T_{n+\frac{x}{2}+1}-T_{n+\frac{x}{2}}}{4};$

When x in subscript is odd number, when its value is more than or equal to 3 and is less than or equal to k,

${T^{\′}}_{n+x}=T_{n+\frac{x-1}{2}}+\frac{3(T_{n+\frac{x-1}{2}+1}-T_{n+\frac{x-1}{2}})}{4};$

Measurement channel is when n+ ((k+1)/2) is to n+k interval range, and the plate shape measurement signal of its actual measurement is to T _n+k, corresponding control plate shape measurement signal T' _n+k+xfor:

When x in subscript is odd number, when its value is more than or equal to 1 and is less than or equal to k-2,

${T^{\′}}_{n+k+x}=T_{n+\frac{k+1}{2}+\frac{x+1}{2}}+\frac{(T_{n+\frac{k+1}{2}+\frac{x-1}{2}}-T_{n+\frac{k+1}{2}+\frac{x+1}{2}})}{4};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-1,

${T^{\′}}_{n+k+x}=T_{n+\frac{k+1}{2}+\frac{x}{2}}+\frac{3(T_{n+\frac{k-1}{2}+\frac{x}{2}}-T_{n+\frac{k+1}{2}+\frac{x}{2}})}{4};$

When in subscript, x equals k, ${T^{\′}}_{n+2k}=T_{n+k+1}+\frac{2(T_{n+k}-T_{n+k+1})}{3};$

Measurement channel is when n+k+1 to n+k+m interval range, and the plate shape measurement signal of its actual measurement is T _n+k+1to T _n+k+m, corresponding control plate shape measurement signal T' _n+2k+xfor:

T' _n+2k+x=T _n+k+x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to m.

N can equal m.

Belt plate shape measuring system of the present invention, by Measurement channel signal conversion module, actual for plate shape measurement roller n+k+m Measurement channel plate shape measurement signal recorded is converted to control plate shape measurement signal, for control panel shape, the unification of the measured value of the wider Measurement channel in plate shape measurement roller middle is made to convert the measured value of the Measurement channel corresponding to narrower width to, the fat pipe of plate shape measurement roller middle is resolved into two narrow passages use, when carrying out belt plate shape and controlling, whole plate shape measurement roller is equivalent to total n+2k+m the Measurement channel controlled like this, thus add the Measurement channel number controlling to use, when not increasing the investment of plate shape measurement roller, improve the precision of Strip Shape Control.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.

Fig. 1 is typical plate shape measurement roller schematic diagram;

Fig. 2 is belt plate shape measuring system control mode block diagram of the present invention;

Fig. 3 is belt plate shape measuring system first embodiment schematic diagram of the present invention;

Fig. 4 is belt plate shape measuring system second embodiment schematic diagram of the present invention.

Detailed description of the invention

Belt plate shape measuring system control mode block diagram of the present invention as shown in Figure 2, comprises plate shape measurement roller, also comprises a Measurement channel signal conversion module;

Described plate shape measurement roller, total Measurement channel number is n+k+m, the number of the Measurement channel on the left side is n, the number of the Measurement channel on the right is m, the number of middle Measurement channel is k, the width of the Measurement channel on the left side equals the width of the Measurement channel on the right, and the width of middle Measurement channel is the twice of the width of the Measurement channel on the left side or the right; N plate shape measurement signal of n the Measurement channel on the left side is from left to right respectively T ₁to T _n, k plate shape measurement signal of k middle Measurement channel is from left to right respectively T _n+1to T _n+k, m plate shape measurement signal of m the Measurement channel on the right is from left to right respectively T _n+k+1to T _n+k+m, n, k, m are positive integer;

Described Measurement channel signal conversion module, n+k+m the plate shape measurement signal for n+k+m the Measurement channel by described plate shape measurement roller converts n+2k+m control plate shape measurement signal T' to ₁to T' _n+2k+m; N+2k+m control plate shape measurement signal is from left to right T' successively ₁to T' _n+2k+m; Wherein T' ₁to T' _ncorrespond respectively to the control plate shape measurement signal of a from left to right n Measurement channel on the left side, T' _n+2k+1to T' _n+2k+mcorrespond respectively to the control plate shape measurement signal of a from left to right m Measurement channel on the right, T' _n+1to T' _n+2ksequentially every two is one group, corresponds respectively to the control plate shape measurement signal of a middle from left to right k Measurement channel.

N+2k+m controls with plate shape measurement signal T' ₁to T' _n+2k+mcomputational methods as follows: when k is even number:

Measurement channel is when 1 to n interval range, and n plate shape measurement signal of its actual measurement is T ₁to T _n, corresponding control plate shape measurement signal T' _xfor:

T' _x=T _x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to n;

Measurement channel is when n+1 to n+ (k/2) interval range, and the plate shape measurement signal of its actual measurement is T _n+1to T _n+k, corresponding control plate shape measurement signal T' _n+xfor:

When in subscript, x equals 1, ${T^{\′}}_{n+1}=T_n+\frac{2*(T_{n+1}-T_n)}{3};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k,

${T^{\′}}_{n+x}=T_{n+\frac{x}{2}}+\frac{T_{n+\frac{x}{2}+1}-T_{n+\frac{x}{2}}}{4};$

When x in subscript is odd number, when its value is more than or equal to 3 and is less than or equal to k-1,

${T^{\′}}_{n+x}=T_{n+\frac{x-1}{2}}+\frac{3(T_{n+\frac{x-1}{2}+1}-T_{n+\frac{x-1}{2}})}{4};$

Measurement channel is when n+ (k/2)+1 is to n+k interval range, and the plate shape measurement signal of its actual measurement is to T _n+k, corresponding control plate shape measurement signal T' _n+k+xfor:

When x in subscript is odd number, when its value is more than or equal to 1 and is less than or equal to k-1,

${T^{\′}}_{n+k+x}=T_{n+\frac{k}{2}+\frac{x+1}{2}}+\frac{(T_{n+\frac{k}{2}+\frac{x-1}{2}}-T_{n+\frac{k}{2}+\frac{x+1}{2}})}{4};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-2,

${T^{\′}}_{n+k+x}=T_{n+\frac{k}{2}+\frac{x}{2}+1}+\frac{3(T_{n+\frac{k}{2}+\frac{x}{2}}-T_{n+\frac{k}{2}+\frac{x}{2}+1})}{4};$

When in subscript, x equals k, ${T^{\′}}_{n+2k}=T_{n+k+1}+\frac{2(T_{n+k}-T_{n+k+1})}{3};$

Measurement channel is when n+k+1 to n+k+m interval range, and the plate shape measurement signal of its actual measurement is T _n+k+1to T _n+k+m, corresponding control plate shape measurement signal T' _n+2k+xfor:

T' _n+2k+x=T _n+k+x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to m; When k is odd number:

Measurement channel is when 1 to n interval range, and n plate shape measurement signal of its actual measurement is T ₁to T _n, corresponding control plate shape measurement signal T' _xfor:

T' _x=T _x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to n;

Measurement channel is when n+1 to n+ ((k+1)/2) interval range, and the plate shape measurement signal of its actual measurement is T _n+1extremely corresponding control plate shape measurement signal T' _n+xfor:

When in subscript, x equals 1, ${T^{\′}}_{n+1}=T_n+\frac{2*(T_{n+1}-T_n)}{3};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-1,

${T^{\′}}_{n+x}=T_{n+\frac{x}{2}}+\frac{T_{n+\frac{x}{2}+1}-T_{n+\frac{x}{2}}}{4};$

When x in subscript is odd number, when its value is more than or equal to 3 and is less than or equal to k,

${T^{\′}}_{n+x}=T_{n+\frac{x-1}{2}}+\frac{3(T_{n+\frac{x-1}{2}+1}-T_{n+\frac{x-1}{2}})}{4};$

Measurement channel is when n+ ((k+1)/2) is to n+k interval range, and the plate shape measurement signal of its actual measurement is to T _n+k, corresponding control plate shape measurement signal T' _n+k+xfor:

When x in subscript is odd number, when its value is more than or equal to 1 and is less than or equal to k-2,

${T^{\′}}_{n+k+x}=T_{n+\frac{k}{2}+\frac{x+1}{2}}+\frac{(T_{n+\frac{k+1}{2}+\frac{x-1}{2}}-T_{n+\frac{k+1}{2}+\frac{x+1}{2}})}{4};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-1,

${T^{\′}}_{n+k+x}=T_{n+\frac{k+1}{2}+\frac{x}{2}}+\frac{3(T_{n+\frac{k-1}{2}+\frac{x}{2}}-T_{n+\frac{k+1}{2}+\frac{x}{2}})}{4};$

When in subscript, x equals k, ${T^{\′}}_{n+2k}=T_{n+k+1}+\frac{2(T_{n+k}-T_{n+k+1})}{3};$

Measurement channel is when n+k+1 to n+k+m interval range, and the plate shape measurement signal of its actual measurement is T _n+k+1to T _n+k+m, corresponding control plate shape measurement signal T' _n+2k+xfor:

T' _n+2k+x=T _n+k+x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to m.

When plate shape measurement roller is bilateral symmetry, n equals m.

First embodiment as shown in Figure 3, plate shape measurement roller is bilateral symmetry, about plate shape measurement roller, the Measurement channel at two limit places is narrow passage, its width is w, the Measurement channel number at two limit places, left and right is equal is all n, and the Measurement channel of plate shape measurement roller middle is fat pipe, and its width is the twice of narrow passage, the Measurement channel number of plate shape measurement roller middle is k, and k is even number.Whole plate shape measurement roller has 2n+k actual measurement physical channel, and the actual plate shape measurement signal recorded of each Measurement channel is T ₁to T _2n+K, 2n+k altogether.Measurement channel signal conversion module converts 2n+k plate shape measurement signal of described plate shape measurement roller to 2n+2k control plate shape measurement signal, and 2n+2k controls with plate shape measurement signal T' ₁to T' _2n+2kbe respectively:

Actual physics channel number is when 1 to n interval range, and the plate shape measurement signal of its actual measurement is T ₁to T _n, its corresponding control plate shape measurement signal T' _xfor:

T' _x=T _x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to n;

Actual physics channel number is when n+1 to n+ (k/2) interval range, and the plate shape measurement signal of its actual measurement is T _n+1extremely its corresponding control plate shape measurement signal T' _n+xfor:

When in subscript, x equals 1, ${T^{\′}}_{n+1}=T_n+\frac{2*(T_{n+1}-T_n)}{3};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k,

${T^{\′}}_{n+x}=T_{n+\frac{x}{2}}+\frac{T_{n+\frac{x}{2}+1}-T_{n+\frac{x}{2}}}{4};$

When x odd number in subscript, when its value is more than or equal to 3 and is less than or equal to k-1,

${T^{\′}}_{n+x}=T_{n+\frac{x-1}{2}}+\frac{3(T_{n+\frac{x-1}{2}+1}-T_{n+\frac{x-1}{2}})}{4};$

Actual physics channel number is when n+ (k/2)+1 is to n+k interval range, and the plate shape measurement signal of its actual measurement is to T _n+k, its corresponding control plate shape measurement signal T' _n+k+xfor:

When x in subscript is odd number, when its value is more than or equal to 1 and is less than or equal to k-1,

${T^{\′}}_{n+k+x}=T_{n+\frac{k}{2}+\frac{x+1}{2}}+\frac{(T_{n+\frac{k}{2}+\frac{x-1}{2}}-T_{n+\frac{k}{2}+\frac{x+1}{2}})}{4};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-2,

${T^{\′}}_{n+k+x}=T_{n+\frac{k}{2}+\frac{x}{2}+1}+\frac{3(T_{n+\frac{k}{2}+\frac{x}{2}}-T_{n+\frac{k}{2}+\frac{x}{2}+1})}{4};$

When in subscript, x equals k, ${T^{\′}}_{n+2k}=T_{n+k+1}+\frac{2(T_{n+k}-T_{n+k+1})}{3};$

Actual physics channel number is when n+k+1 to n+k+n interval range, and the plate shape measurement signal of its actual measurement is T _n+k+1to T _n+k+n, the Shape signal T' of corresponding control passage _n+2k+xfor:

T' _n+2k+x=T _n+k+x, in subscript, x is more than or equal to the integer that 1 is less than or equal to n.

Second embodiment as shown in Figure 4, plate shape measurement roller is bilateral symmetry, about plate shape measurement roller, the Measurement channel at two limit places is narrow passage, its width is w, the Measurement channel number at two limit places, left and right is equal is all n, and the Measurement channel of plate shape measurement roller middle is fat pipe, and its width is the twice of narrow passage, the Measurement channel number of plate shape measurement roller middle is k, and k is odd number.Whole plate shape measurement roller has 2n+k actual measurement physical channel, and the actual plate shape measurement signal recorded of each Measurement channel is T1 to T2n+K, 2n+k altogether.Measurement channel signal conversion module converts 2n+k plate shape measurement signal of described plate shape measurement roller to 2n+2k control plate shape measurement signal, and 2n+2k controls with plate shape measurement signal T' ₁to T' _2n+2kbe respectively:

Actual physics channel number is when 1 to n interval range, and the plate shape measurement signal of its actual measurement is T ₁to T _n, its corresponding control plate shape measurement signal T' _xfor:

T' _x=T _x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to n;

Actual physics channel number is when n+1 to n+ ((k+1)/2) interval range, and the plate shape measurement signal of its actual measurement is T _n+1extremely its corresponding control plate shape measurement signal T' _n+xfor:

When in subscript, x equals 1, ${T^{\′}}_{n+1}=T_n+\frac{2*(T_{n+1}-T_n)}{3};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-1,

${T^{\′}}_{n+x}=T_{n+\frac{x}{2}}+\frac{T_{n+\frac{x}{2}+1}-T_{n+\frac{x}{2}}}{4};$

When x odd number in subscript, when its value is more than or equal to 3 and is less than or equal to k,

${T^{\′}}_{n+x}=T_{n+\frac{x-1}{2}}+\frac{3(T_{n+\frac{x-1}{2}+1}-T_{n+\frac{x-1}{2}})}{4};$

Actual physics channel number is when n+ (k+1)/2 to n+k interval range, and the plate shape measurement signal of its actual measurement is to T _n+k, its corresponding control plate shape measurement signal T' _n+k+xfor:

When x in subscript is odd number, when its value is more than or equal to 1 and is less than or equal to k-2,

${T^{\′}}_{n+k+x}=T_{n+\frac{k+1}{2}+\frac{x+1}{2}}+\frac{(T_{n+\frac{k+1}{2}+\frac{x+1}{2}}-T_{n+\frac{k+1}{2}+\frac{x+1}{2}})}{4};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-1,

${T^{\′}}_{n+k+x}=T_{n+\frac{k+1}{2}+\frac{x}{2}}+\frac{3(T_{n+\frac{k-1}{2}+\frac{x}{2}}-T_{n+\frac{k+1}{2}+\frac{x}{2}})}{4};$

When in subscript, x equals k, ${T^{\′}}_{n+2k}=T_{n+k+1}+\frac{2(T_{n+k}-T_{n+k+1})}{3};$

Actual physics channel number is when n+k+1 to n+k+n interval range, and the plate shape measurement signal of its actual measurement is T _n+k+1to T _n+k+n, the Shape signal T' of corresponding control passage _n+2k+xfor:

T' _n+2k+x=T _n+k+x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to n.

Belt plate shape measuring system of the present invention, by Measurement channel signal conversion module, actual for plate shape measurement roller n+k+m Measurement channel plate shape measurement signal recorded is converted to control plate shape measurement signal, for control panel shape, the unification of the measured value of the wider Measurement channel in plate shape measurement roller middle is made to convert the measured value of the Measurement channel corresponding to narrower width to, the fat pipe of plate shape measurement roller middle is resolved into two narrow passages use, when carrying out belt plate shape and controlling, whole plate shape measurement roller is equivalent to total n+2k+m the Measurement channel controlled like this, thus add the Measurement channel number controlling to use, when not increasing the investment of plate shape measurement roller, improve the precision of Strip Shape Control.

Claims (3)

1. a belt plate shape measuring system, comprises plate shape measurement roller, it is characterized in that, also comprises a Measurement channel signal conversion module;

Described plate shape measurement roller, total Measurement channel number is n+k+m, the number of the Measurement channel on the left side is n, the number of the Measurement channel on the right is m, the number of middle Measurement channel is k, the width of the Measurement channel on the left side equals the width of the Measurement channel on the right, and the width of middle Measurement channel is the twice of the width of the Measurement channel on the left side or the right; N plate shape measurement signal of n the Measurement channel on the left side is from left to right respectively T ₁to T _n, k plate shape measurement signal of k middle Measurement channel is from left to right respectively T _n+1to T _n+k, m plate shape measurement signal of m the Measurement channel on the right is from left to right respectively T _n+k+1to T _n+k+m, n, k, m are positive integer;

Described Measurement channel signal conversion module, for n+k+m the plate shape measurement signal T by described plate shape measurement roller ₁to T _n+k+mconvert n+2k+m control plate shape measurement signal T' to ₁to T' _n+2k+m.

2. belt plate shape measuring system according to claim 1, is characterized in that, n+2k+m controls with plate shape measurement signal T' ₁to T' _n+2k+mcomputational methods as follows: when k is even number:

Measurement channel is when 1 to n interval range, and n plate shape measurement signal of its actual measurement is T ₁to T _n, corresponding control plate shape measurement signal T' _xfor:

T' _x=T _x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to n;

Measurement channel is when n+1 to n+ (k/2) interval range, and the plate shape measurement signal of its actual measurement is T _n+1to T _n+k, corresponding control plate shape measurement signal T' _n+xfor:

When in subscript, x equals 1, ${T^{\′}}_{n+1}=T_n+\frac{2*(T_{n+1}-T_n)}{3};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k,

${T^{\′}}_{n+x}=T_{n+\frac{x}{2}}+\frac{T_{n+\frac{x}{2}+1}-T_{n+\frac{x}{2}}}{4};$

When x in subscript is odd number, when its value is more than or equal to 3 and is less than or equal to k-1,

${T^{\′}}_{n+x}=T_{n+\frac{x-1}{2}}+\frac{3(T_{n+\frac{x-1}{2}+1}-T_{n+\frac{x-1}{2}})}{4};$

Measurement channel is when n+ (k/2)+1 is to n+k interval range, and the plate shape measurement signal of its actual measurement is to T _n+k, corresponding control plate shape measurement signal T' _n+k+xfor:

When x in subscript is odd number, when its value is more than or equal to 1 and is less than or equal to k-1,

${T^{\′}}_{n+k+x}=T_{n+\frac{k}{2}+\frac{x+1}{2}}+\frac{(T_{n+\frac{k}{2}+\frac{x-1}{2}}-T_{n+\frac{k}{2}+\frac{x+1}{2}})}{4};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-2,

${T^{\′}}_{n+k+x}=T_{n+\frac{k}{2}+\frac{x}{2}+1}+\frac{3(T_{n+\frac{k}{2}+\frac{x}{2}}-T_{n+\frac{k}{2}+\frac{x}{2}+1})}{4};$

When in subscript, x equals k, ${T^{\′}}_{n+2k}=T_{n+k+1}+\frac{2(T_{n+k}-T_{n+k+1})}{3};$

Measurement channel is when n+k+1 to n+k+m interval range, and the plate shape measurement signal of its actual measurement is T _n+k+1to T _n+k+m, corresponding control plate shape measurement signal T' _n+2k+xfor:

T' _n+2k+x=T _n+k+x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to m; When k is odd number:

Measurement channel is when 1 to n interval range, and n plate shape measurement signal of its actual measurement is T ₁to T _n, corresponding control plate shape measurement signal T' _xfor:

T' _x=T _x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to n;

Measurement channel is when n+1 to n+ ((k+1)/2) interval range, and the plate shape measurement signal of its actual measurement is T _n+1extremely corresponding control plate shape measurement signal T' _n+xfor:

When in subscript, x equals 1, ${T^{\′}}_{n+1}=T_n+\frac{2*(T_{n+1}-T_n)}{3};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-1,

${T^{\′}}_{n+x}=T_{n+\frac{x}{2}}+\frac{T_{n+\frac{x}{2}+1}-T_{n+\frac{x}{2}}}{4};$

When x in subscript is odd number, when its value is more than or equal to 3 and is less than or equal to k,

${T^{\′}}_{n+x}=T_{n+\frac{x-1}{2}}+\frac{3(T_{n+\frac{x-1}{2}+1}-T_{n+\frac{x-1}{2}})}{4};$

Measurement channel is when n+ ((k+1)/2) is to n+k interval range, and the plate shape measurement signal of its actual measurement is to T _n+k, corresponding control plate shape measurement signal T' _n+k+xfor:

When x in subscript is odd number, when its value is more than or equal to 1 and is less than or equal to k-2,

${T^{\′}}_{n+k+x}=T_{n+\frac{k}{2}+\frac{x+1}{2}}+\frac{(T_{n+\frac{k}{2}+\frac{x-1}{2}}-T_{n+\frac{k}{2}+\frac{x+1}{2}})}{4};$

When x in subscript is even number, when its value is more than or equal to 2 and is less than or equal to k-1,

${T^{\′}}_{n+k+x}=T_{n+\frac{k+1}{2}+\frac{x}{2}}+\frac{3(T_{n+\frac{k-1}{2}+\frac{x}{2}}-T_{n+\frac{k+1}{2}+\frac{x}{2}})}{4};$

When in subscript, x equals k, ${T^{\′}}_{n+2k}=T_{n+k+1}+\frac{2(T_{n+k}-T_{n+k+1})}{3};$

Measurement channel is when n+k+1 to n+k+m interval range, and the plate shape measurement signal of its actual measurement is T _n+k+1to T _n+k+m, corresponding control plate shape measurement signal T' _n+2k+xfor:

T' _n+2k+x=T _n+k+x, in subscript, x is the integer being more than or equal to 1 and being less than or equal to m.

3. belt plate shape measuring system according to claim 1 and 2, it is characterized in that, n equals m.