Physical quantity measuring instrument and signal processing method thereof
First Claim
1. A physical quantity measuring instrument for detecting signals based on a desired physical quantity and for calculating the physical quantity by executing signal processing, the physical quantity measuring instrument comprising:
- a signal detecting component configured to detect a plurality of signals based on the physical quantity;
a signal processing component configured to linearly combine the signals detected by the signal detecting component with coefficients that vary with time and include all the signal components based on the desired physical quantity; and
an arithmetic processing component configured to calculate the physical quantity from signal data output by the signal processing component.
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Abstract
The present invention relates to a physical quantity measuring instrument and signal processing method thereof capable of reducing noise components and improving reliability without increasing size or cost of the circuit. A physical quantity detecting unit (11) has signal detecting components for detecting a plurality of signals based on a desired physical quantity and detects the desired physical quantity. A signal processing unit (12) executes signal processing of the signals detected on the individual detecting axes by the physical quantity detecting unit (11) for linearly combining the signals in different combinations with time. An arithmetic processing unit (13) combines and calculates a plurality of signals based on the physical quantity associated with the physical quantity detecting unit (11) from the signal data output by the signal processing unit (12). It can linearly combine the signals from the plurality of detecting axes in different combinations with time, output them, and obtain desired signal components whose noise components are reduced by calculating the outputs.
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Citations
34 Claims
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1. A physical quantity measuring instrument for detecting signals based on a desired physical quantity and for calculating the physical quantity by executing signal processing, the physical quantity measuring instrument comprising:
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a signal detecting component configured to detect a plurality of signals based on the physical quantity; a signal processing component configured to linearly combine the signals detected by the signal detecting component with coefficients that vary with time and include all the signal components based on the desired physical quantity; and an arithmetic processing component configured to calculate the physical quantity from signal data output by the signal processing component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A signal processing method in a physical quantity measuring instrument for detecting signals based on a desired physical quantity and for calculating the physical quantity by executing signal processing, the signal processing method comprising:
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a signal detecting step of detecting a plurality of signals based on the physical quantity by a signal detecting component; a signal processing step of linearly combining the signals detected at the signal detecting step with coefficients varying with time in a manner that all the signal components based on the desired physical quantity are included; and an arithmetic processing step of calculating the physical quantity from signal data output at the signal processing step. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification