Weight measuring apparatus
First Claim
1. A weight measuring apparatus in which an amount of distortion of an object to be measured is transduced into an electrical signal by a strain gauge and the electrical signal is amplified by an amplifier for measuring the weight of the object, comprising:
- a linear calibration means for performing correction so that a relation of the weight relative to the amount of distortion may become linear over all measurement range.
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Abstract
A weight measuring apparatus allowing a weight measurement value to be completely proportional to an amount of distortion over all measurement range. A linear calibration means 3 for performing correction so that a relation of the weight to the amount of distortion may become linear over all measurement range is provided. Therefore, even if the input-output characteristic of a strain gauge 1 or that of an amplifier 2 is not held linear, the resultant weight measurement value becomes linear over all measurement range, thus enabling the precise measuring of weight.
9 Citations
19 Claims
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1. A weight measuring apparatus in which an amount of distortion of an object to be measured is transduced into an electrical signal by a strain gauge and the electrical signal is amplified by an amplifier for measuring the weight of the object, comprising:
a linear calibration means for performing correction so that a relation of the weight relative to the amount of distortion may become linear over all measurement range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A weight measuring apparatus for measuring weight of an object to be measured from an amount of distortion of the object comprising:
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a detection means for detecting the amount of distortion and then transducing it into an electrical signal;
an amplification means for amplifying a result detected by said detection means; and
a calibration means for correcting a relation between the amount of distortion and the electrical signal;
wherein said calibration means has the electrical signal amplified by said amplification means inputted therein, and corrects the electrical signal so that the relation of the weight relative to the amount of distortion may become linear over all measurement range. - View Dependent Claims (11, 12, 13, 14)
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15. A weight measuring apparatus for measuring weight of an object to be measured from an amount of distortion of the object, comprising:
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a detection means for detecting the amount of distortion and then transducing it into an electrical signal; and
a calibration means for correcting a relation between the amount of distortion and the electrical signal;
wherein the electrical signal produced through the transduction by said detection means is inputted in said calibration means, while said calibration means corrects the electrical signal so that a relation of the weight relative to the amount of distortion may become linear over all measurement range. - View Dependent Claims (16, 17, 18, 19)
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Specification