Flow Rate Measurement Apparatus
First Claim
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1. A flow rate measurement apparatus comprising:
- a pipe, through which fluid flows;
a movable member whose physical change occurs corresponding to a flow rate of the fluid, the movable member being disposed inside the pipe in a direction so as to block a part of or all of a flow of the fluid;
a detection device for detecting an amount of the physical change of the movable member without being in contact with the movable member, the detection device being disposed outside the pipe; and
a calculation device for calculating the flow rate of the fluid based on the physical change amount of the movable member detected by the detection device.
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Abstract
A movable member 13, whose physical change occurs corresponding to a respiration flow rate, is disposed in the pipe 11. The pipe 11 and holder section are structured to be capable of being detachable. When staring respiration with the mouth touching pipe 11, the movable member 13 bends corresponding to respiration flow rate. Image data of the movable member 13 is obtained through the pipe 11 by a CCD area sensor disposed outside the pipe 11 and the bending amount is detected. The respiration rate is calculated based on the flow rate data corresponding to the bending amount of the movable member 13 in use.
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15 Claims
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1. A flow rate measurement apparatus comprising:
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a pipe, through which fluid flows; a movable member whose physical change occurs corresponding to a flow rate of the fluid, the movable member being disposed inside the pipe in a direction so as to block a part of or all of a flow of the fluid; a detection device for detecting an amount of the physical change of the movable member without being in contact with the movable member, the detection device being disposed outside the pipe; and a calculation device for calculating the flow rate of the fluid based on the physical change amount of the movable member detected by the detection device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification