Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
185 words
A system for continually measuring the amount of displacement of an object relative to a reference plane comprising: means mounting a first measuring photoelectric cell on said object in such a manner as to be subject to a displacement in accordance with the displacement of said object, said first measuring photoelectric cell having an absolute sensitivity which changes continuously in the direction of the displacement to be measured, a reference point, a source of a laser beam originating from said reference point, said laser beam being fanned out in a direction intersecting and crossing said photoelectric cell, a comparison photoelectric cell being arranged on said object substantially parallel to said measuring photoelectric cell, said comparison photoelectric cell having a substantially constant absolute sensitivity along its length, electrical means coupled to the outputs of said photocells and using the combined outputs to develop a resultant signal, whereby displacement of said object and hence of said first measuring photoelectric cell causes said laser beam to sweep said first measuring photoelectric cell and generate an electrical signal which is indicative of the amount of displacement of said object.
Claim 2
Independent Claim
185 words
A system for continually measuring the amount of displacement of an object relative to a reference plane comprising: means mounting a first measuring photoelectric cell on said object in such a manner as to be subject to a displacement in accordance with the displacement of said object, said first measuring photoelectric cell having an absolute sensitivity which changes continuously in the direction of the displacement to be measured, a reference point, a source of a laser beam originating from said reference point, said laser beam being fanned out in a direction intersecting and crossing said photoelectric cell, a comparison photoelectric cell being arranged on said object substantially parallel to said measuring photoelectric cell, said comparison photoelectric cell having a substantially constant absolute sensitivity along its length, electrical means coupled to the outputs of said photocells and using the combined outputs to develop a resultant signal, whereby displacement of said object and hence of said first measuring photoelectric cell causes said laser beam to sweep said first measuring photoelectric cell and generate an electrical signal which is indicative of the amount of displacement of said object.
Claim 3
Dependent Claim
38 words
A displacement measuring system in accordance with claim 1 wherein said photoelectric cell contains a photosensitive plane having a width which increases from one end of the cell to the other along the direction of displacement being measured.
Claim 4
Dependent Claim
47 words
A displacement measuring system in aCcordance with claim 2 wherein the increase in the width of the cell along the length thereof is nonlinear such that the output signal generated from the cell changes linearly with the sweeping of the beam along the length of the cell.
Claim 5
Dependent Claim
32 words
A displacement measuring system in accordance with claim 1 wherein said photoelectric cell includes a filter having a filter characteristic which changes continuously in the direction of the displacement to be measured.
Claim 6
Dependent Claim
29 words
A displacement measuring system in accordance with claim 4 wherein said filter is an absorption type filter having a permeability which increases essentially wedgelike along the direction of measurement.
Claim 7
Dependent Claim
63 words
A displacement system in accordance with claim 1 wherein a first self adjusting amplifier is coupled to the output of the comparison photoelectric cell, said self adjusting amplifier producing a substantially constant output, a further amplifier coupled to the output of the measuring photoelectric cell, and means coupling an output of said first amplifier to said further amplifier to control the amplification thereof.
Claim 8
Dependent Claim
22 words
A displacement system in accordance with claim 6 wherein a recorder is coupled to the outputs of said first and further amplifiers.
Claim 9
Dependent Claim
21 words
A displacement system in accordance with claim 1 wherein a differential amplifier is coupled to the outputs of said photoelectric cells.
Claim 10
Dependent Claim
63 words
A displacement system in accordance with claim 1 wherein a second measuring photoelectric cell is provided oppositely of said first measuring photoelectric cell and has increasing sensitivity in a direction oppositely of the direction of increasing sensitivity of said first measuring photoelectric cell, whereby the displacement of a moving object along a plane can be determined relative to a fixed line of travel.