Water bike equipped with speed meter
First Claim
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1. A water bike equipped with a speed meter comprising:
- a coil disposed to generate in water a magnetic flux in at least a direction crossing orthogonally a running direction of said water bike;
a current source for supplying a current for generating the magnetic flux in said coil;
electrodes having threads for supporting a flat metallic portion which contacts the water for detecting electromotive force generated in water by an electromagnetic induction operation occurring between said magnetic flux and water during running of said water bike;
computing means for determining the speed of said water bike on the basis of the signal detected by said electrodes; and
display means for displaying the speed so determined.
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Abstract
A water bike equipped with a speed meter wherein a speed meter sensor 1 including a coil for generating a magnetic flux and electrodes disposed at positions vertical to both flowing direction of a fluid and direction of the magnetic flux, and for measuring the speed of the water bike on water by the value of electromotive force generated by an electromagnetic induction operation, is fitted to a submerged portion of the water bike 2.
9 Citations
13 Claims
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1. A water bike equipped with a speed meter comprising:
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a coil disposed to generate in water a magnetic flux in at least a direction crossing orthogonally a running direction of said water bike;
a current source for supplying a current for generating the magnetic flux in said coil;
electrodes having threads for supporting a flat metallic portion which contacts the water for detecting electromotive force generated in water by an electromagnetic induction operation occurring between said magnetic flux and water during running of said water bike;
computing means for determining the speed of said water bike on the basis of the signal detected by said electrodes; and
display means for displaying the speed so determined. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A water bike equipped with a speed meter comprising:
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a coil including a core and a pair of magnetic poles disposed in a line perpendicular to an axes of said water bike;
said coil being so disposed as to generate in water a magnetic flux in at least a direction crossing orthogonally a running direction of said water bike;
a current source for supplying a current for generating the magnetic flux in said coil;
electrodes for detecting electromotive force generated in water by an electromagnetic induction operation occurring between said magnetic flux and water during running of said water bike, one of said electrodes being located between said pair of magnetic poles, and separated from the other electrode by one of said magnetic poles;
computing means for determining the speed of said water bike on the basis of the signal detected by said electrodes; and
display means for displaying the speed so determined.
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13. A water bike equipped with a speed meter comprising:
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a coil so disposed as to generate in water a magnetic flux in at least a direction crossing orthogonally a running direction of said water bike;
a current source for supplying a current for generating the magnetic flux in said coil;
electrodes having flat metallic members fixed thereto with nuts and bolts for detecting electromotive force generated in water by an electromagnetic induction operation occurring between said magnetic flux and water during running of said water bike;
computing means for determining the speed of said water bike on the basis of the signal detected by said electrodes; and
display means for displaying the speed so determined.
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Specification