SPEED DETECTOR AND SWING TOOL HAVING THE SAME
First Claim
1. A speed detector comprising:
- a pressure sensor includinga pitot tube attached to a moving body in a state in which an air inlet hole is directed toward a direction of a movement of the moving body,a diaphragm having a pressure receiving surface displaced by pressure, anda pressure-sensitive section adapted to receive force caused by the displacement to detect the pressure,the pressure sensor being disposed to the moving body and detecting the pressure caused in the pitot tube; and
an operation section adapted to detect a speed of the moving body based on the difference between the pressure at rest and the pressure in movement of the moving body,wherein the pressure sensor is disposed so that a normal line of the pressure receiving surface becomes perpendicular to the direction of the movement.
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Accused Products
Abstract
A speed detector includes: a pressure sensor including a pitot tube attached to a moving body in a state in which an air inlet hole is directed toward a direction of a movement of the moving body, a diaphragm having a pressure receiving surface displaced by pressure, and a pressure-sensitive section adapted to receive force caused by the displacement to detect the pressure, the pressure sensor being disposed to the moving body and detecting the pressure caused in the pitot tube; and an operation section adapted to detect a speed of the moving body based on the difference between the pressure at rest and the pressure in movement of the moving body, wherein the pressure sensor is disposed so that a normal line of the pressure receiving surface becomes perpendicular to the direction of the movement.
59 Citations
15 Claims
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1. A speed detector comprising:
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a pressure sensor including a pitot tube attached to a moving body in a state in which an air inlet hole is directed toward a direction of a movement of the moving body, a diaphragm having a pressure receiving surface displaced by pressure, and a pressure-sensitive section adapted to receive force caused by the displacement to detect the pressure, the pressure sensor being disposed to the moving body and detecting the pressure caused in the pitot tube; and an operation section adapted to detect a speed of the moving body based on the difference between the pressure at rest and the pressure in movement of the moving body, wherein the pressure sensor is disposed so that a normal line of the pressure receiving surface becomes perpendicular to the direction of the movement. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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2. A speed detector comprising:
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a container attached to a moving body and having an opening section; a first pressure sensor disposed inside the container and including a pitot tube attached to the opening section in the state of having an air inlet hole directed toward a direction of a movement of the moving body to form an internal space integrally with the container, and having pressure in the internal space vary due to the movement of the moving body, a diaphragm having a pressure receiving surface displaced by the pressure, and a pressure-sensitive section adapted to receive force caused by the displacement to detect the pressure; a second pressure sensor disposed outside the internal space; and a second operation section adapted to detect a speed of the moving body based on a difference between the pressure detected by the first pressure sensor and the pressure detected by the second pressure sensor, wherein the first and the second pressure sensors are disposed so that a normal line of the pressure receiving surface becomes perpendicular to the direction of the movement.
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Specification