US 5,631,855 A · Methods and apparatus for analyzing physical quantities and apparatus for reducing line spectrum noise

Abstract

Operations of physical formula which is determined its main portion based upon physical quantities, are performed by plural physical formula operating units (11)(12) . . . (1m) based upon known information, operation results are cumulatively added by a sigma unit (2) and a difference between the cumulatively added result and an actually measured value is calculated by an error operating section (3), and variables included in the physical formula are corrected by correcting sections (11a)(12a) . . . (1ma) of the physical formula operating units (11)(12) . . . (1m) so as to decrease the difference. After the series of processings is repeated by a required number of times, the corrected variables are collected and output as analysis results of physical quantities by an information collecting unit (4). As a result, simplification in arrangement can be performed, and analysis of physical quantities of physical sources can be performed with small number of studying times.

Claims4

Dependent claims

A method for analyzing physical quantities measured at predetermined points apart from physical sources, when the physical quantities can be calculated based upon predetermined physical formulae which include variables corresponding to physical characteristics and which satisfies linear addition, the method comprising:

a) operating the physical formulae based upon known information, the physical formulae being determined corresponding to the nature of he physical quantities to be analyzed;
b) measuring a physical quantity to be analyzed;
c) calculating a difference between the measured physical quantity and a sum obtained by cumulatively adding the operation results of the physical formulae,
d) correcting plural variables of the physical formulae based upon the calculated difference;
and
outputting the corrected variables included in each physical formula as analysis results of the physical quantities, after repeating steps a through d until the difference has become smaller than a predetermined value.

3 more elements

An apparatus for analyzing physical quantities measured at predetermined points apart from physical sources, when the physical quantities can be calculated based upon predetermined physical formulae which include variables corresponding to physical characteristics, and which satisfies linear addition, the apparatus comprising:

physical formula operating means for operating the physical formulae, a number of physical formula operating means being larger than a number of variables corresponding to physical characteristics of the physical quantity to be analyzed;
cumulative addition means for cumulatively adding operation results output from each physical formula operating means to produce a cumulatively added result output;
measuring means for measuring the physical quantity to be analyzed;
difference calculating means for receiving the cumulatively added result output from the cumulative addition means and a measured value of the physical quantity to be analyzed, and for calculating a difference between the cumulatively added result output and the measured value;
correcting means for correcting the variables in each physical formula based upon the calculated difference;
and
corrected result collecting means for collecting variables corrected by the correcting means, and for outputting the collected results as analysis results of physical quantities of physical sources.

4 more elements

Dependencies are inferred from the claim text.

Methods and apparatus for analyzing physical quantities and apparatus for reducing line spectrum noise

Life of this patent

Methods and apparatus for analyzing physical quantities and apparatus for reducing line spectrum noise

Life of this patent

Abstract

Claims4