SU934210A2 - Inclination angle measuring device - Google Patents

Description

The invention relates to a control and measuring technique, and in particular, to devices for describing the local properties of an image contour, measurement -. the slope of the line.

By main auto No. 575473 a device for measuring the angle of inclination is known, which contains a matrix of photosensitive elements, first and second adders, inputs connected to the outputs of the matrix, first and second quadrators, inputs connected to the outputs of the respective adders, the third adder, inputs sub- _i5 valuable to the outputs of the quadrators, block multiplication, the inputs connected to the outputs of the first and second adders, the fourth adder connected to the output of the multiplication block, and the registration blocks _m , consisting of each of the series connected blocks how to reproduce ^ the channel indicator of the maximum signal and the reference indicators, the inputs of which are connected to the outputs of the third and fourth adders Г1}

A disadvantage of the known device is the low measurement accuracy ^ due to the fact that the distribution of the signal at the outputs of the propagation units does not have a clearly defined maximum.

The purpose of the invention is to improve the accuracy of measurement.

This goal is achieved by the fact that the device is equipped with a reference signal generator, first and second functional converters, the inputs of which are connected to the output of the generator, and the first and second algebraic adders, the summing inputs of which are connected to the outputs of the third and fourth adders, respectively, subtracting inputs - with outputs corresponding functional converters, and outputs with inputs of the registration unit.

The drawing shows a block diagram T of the device for measuring the angle of inclination.

The device contains a matrix 1 of photosensitive elements, the first 5 and the second 2 adders 3, the first. 4 and the second 5 squares, the third adder 6 connected to the outputs of the squares 4 and 5, the multiplication unit 7, the fourth adder 8, two registration units 9 and 10, each of which consists of a multiplication unit 11 connected in series, the maximum signal channel indicator 12 and indicators 13 readout, the generator 14 of the reference signals, functional converters 15 and 16, algebraic adders 17 and 18, the subtracting inputs of which are connected to the outputs of the functional converters 1'5 and 16, and the outputs - with the inputs of the registration unit 10.

The device operates as follows.

The generator 14 of the reference signal according to a predetermined law generates a reference slope exciting cos 5-1i2CH! In functional converters 15 and 16 !? respectively. The inputs of the algebraic adders 17 and 18 receive signals from both the adders 6 and 8, and from the functional converters 15 and 16 of the reference slope. There are signals at the outputs of these adders.

HD Vascos 2T - << СО5 -sin 2Ф-dLsin where - the measured angle of inclination; cС - scale factor;

- the reference angle of inclination, forming the components of the vector I ”, _v ... -

The procedure for accurately reading the value of Ψ is as follows. Suppose that at the output of blocks 6 and 8 there is an indication of the slope equal to ψ _ο , and the discreteness of the reference of the slope of the straight line is Then the banner of the reference slope is set in the interval. We can its value can be continuously changed from one extreme value to another. With a change, the direction of the vector changes continuously and only with collinear vectors and E, t_.e. when CH'-Ch'd the direction of the vector E coincides with the direction of the vectors ECf) and E (Fe). The value of the measured slope Φ is taken equal to such a value fg at which the readings of both registration blocks 9 and 10 coincide. The reading accuracy can be increased by increasing the coefficient &.

The invention improves the accuracy of measuring the angle of inclination.

Claims (1)

 . . The invention relates to a control and measuring technique, in particular, to devices for describing local properties of an image contour, measuring a direct tilt angle. According to the main auth. N is known a device for measuring the angle of inclination, containing a matrix of photosensitive elements, first and second adders, inputs connected to the outputs of the matrix, first and second quadrants, inputs connected to the outputs of the corresponding adders, third adder, inputs connected to the outputs of quadrants, a multiplication unit, inputs connected to, the outputs of the first and second adders, the fourth adder, the input connected to the output of the multiplication unit, and the registration units consisting of each of the series-connected blocks azmnozheni; the maximum signal channel indicator and the reference indicators, whose inputs are connected to the outputs of the third and fourth adders C}. A disadvantage of the known device is the low measurement accuracy due to the fact that the signal distribution at the outputs of the multiplication blocks does not have a clearly defined maximum. The purpose of the invention is to improve the measurement accuracy. The goal is achieved by the fact that the device is equipped with a generator of reference signals, the first and second functional converters, whose inputs are connected to the generator output, and the first and second algebraic adders, the summing inputs of which are connected to the outputs of the third and fourth adders, respectively, the subtracting inputs — with the outputs corresponding functional converters, and outputs - with inputs of the registration unit. 3 The drawing shows a block diagram of a device for measuring the angle of inclination. The device contains a matrix of 1 photosensitive elements, the first 2 and second 3 adders, the first and second 5 quadrants, the third sum of the matrix 6, the inputs connected to the outputs of quadrants 4 and 5, the multiplication unit 7, the fourth adder O, two recording units 9 and 10, each of which consists of sequentially connected block 11 of propagation of the indicator 12 channel of the maximum signal and indicators 13 of the reference, r non-generator} k reference signals, functional converters 15 and 1b, algebraic adders 17 and 18, the subtractive inputs of which are connected from the output mi functional converters 15 and 16, and the outputs with the inputs of the block 10 registration. The device works as follows. The generator 1A of the reference signal generates a reference slope% according to a predetermined law, exciting in functional converters 15 and 16 signals for 52 p5 and 5in2Vj, respectively. The inputs of algebraic adders 17 and 18 receive “signals from both adders 6 and 8, as well as functional converters 15 and 16 of the reference slope. There are signals at the outputs of these adders. X (f,%) COe 2 "P-ocC05 (H, s; eiHiM-oLslVi 2Y9, where is the measured angle of inclination; o scale factor; Chr is the reference angle of inclination, forming | 1 of the components of the vector FCf, HI. ..,. The procedure for accurate reading of the value of V is as follows. Empty 04 at the output of blocks 6 and 8. there is a display; the slope is equal to% and the discreteness of the count of the slope of the direct is equal to tdf. Then the value of the reference slope is set in the interval 4o-d, its value can be continuously changed from one extreme value to the other.With a change in V, the direction of the vector changes continuously and only when it calls non-linear vectors E and E, i.e. at f, the direction of the vector E coincides with the direction of the vectors FCf and ECfg .. The value of the measured slope C is assumed to be such a value of U, at which the readings of both blocks 9 and 10 of the registration coincide. The accuracy of the reference can be increased by increasing the value of the coefficient c6 The invention improves the accuracy of the measurement of the angle of inclination.A invention claims A device for measuring the angle of inclination according to the author. No, in order to improve measurement accuracy, it is equipped with a generator of reference signals, first and second functional converters, the inputs of which are connected to the output of the generator, and first and second algebraic adders, the summing-up inputs of which are connected to the outputs of the third and the fourth adders, respectively, the subtraction inputs - with the outputs of the corresponding functional converters, and the outputs - with the inputs of the registration block. Sources of information taken into account during the examination 1. USSR Author's Certificate No., cl. G 01 B 7/30, 1977. GI- II I II rifl g 1