Method for adjusting the temperature characteristic of a vibrating gyroscope
First Claim
1. A method for adjusting a temperature characteristic of a vibrating gyroscope which includes a vibration member having opposing external electrodes formed on outside main surfaces of said vibration member, at least one of said external electrodes is divided, said method comprising the step of:
- removing a part of at least one of said opposing external electrodes to adjust capacitances between said opposing external electrodes to adjust said temperature characteristic, wherein said divided electrode is divided into at least first and second sections and the capacitances are a first capacitance between the first section and the opposing external electrode and a second capacitance between the second section and the opposing external electrode, and said part of said at least one of said opposing external electrodes is removed such that the first and second capacitances are equal.
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Accused Products
Abstract
A vibrating gyroscope includes a vibration member in which first and second piezoelectric substrates are joined together. On the outside main surface of the first piezoelectric substrate, a first external electrode divided into six electrode sections is formed. On the outside main surface of the second piezoelectric substrate, a second external electrode is formed. By removing a part of the electrode sections disposed at the center, a capacitance difference C(L)-C(R) between the capacitance C(L) formed between one of the electrode sections disposed at the center and the second external electrode, and the capacitance C(R) formed between another electrode section disposed at the center and the second external electrode is adjusted.
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Citations
13 Claims
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1. A method for adjusting a temperature characteristic of a vibrating gyroscope which includes a vibration member having opposing external electrodes formed on outside main surfaces of said vibration member, at least one of said external electrodes is divided, said method comprising the step of:
removing a part of at least one of said opposing external electrodes to adjust capacitances between said opposing external electrodes to adjust said temperature characteristic, wherein said divided electrode is divided into at least first and second sections and the capacitances are a first capacitance between the first section and the opposing external electrode and a second capacitance between the second section and the opposing external electrode, and said part of said at least one of said opposing external electrodes is removed such that the first and second capacitances are equal. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10)
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2. A method for adjusting a temperature characteristic of a vibrating gyroscope which includes a vibration member having opposing external electrodes formed on outside main surfaces of said vibration member, at least one of said external electrodes is divided, said method comprising the step of:
removing a part of at least one of said opposing external electrodes to adjust capacitances between said opposing external electrodes to adjust said temperature characteristic, wherein said divided electrode is divided into at least first and second sections and the capacitances are a first capacitance between the first section and the opposing external electrode and a second capacitance between the second section and the opposing external electrode, and said part of said at least one of said opposing external electrodes is removed such that the first and second capacitances are unequal.
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11. A method for adjusting a temperature characteristic of a vibrating gyroscope which includes a vibration member having opposing external electrodes formed on outside main surfaces of said vibration member, at least one of said external electrodes is divided, said method comprising the steps of:
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measuring said temperature characteristic; and removing a part of at least one of said opposing external electrodes to adjust capacitances between said opposing external electrodes to adjust said temperature characteristic. - View Dependent Claims (12, 13)
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Specification