Tokyo Magnet Engineering Co. Ltd

Honda Motor Co., Ltd.

Tokyo Keiso Co., Ltd.

Tokyo Keiso Co. Ltd. Shiba Toho Bldg.

Tomoyuki Okumura

Tokio Sugi

Shiro Kitamura

Hiroshi Nanjo

A floating-point calculation apparatus comprising: a selection part; an addition and subtraction calculation part; an output determination part; and a buffer management part configured to add, when it is determined that a buffer used to store an input value is not prepared, a buffer that corresponds to the input value, wherein when a number of significant digits of the result of performing an addition and subtraction calculation exceeds a number of significant digits of the buffer selected by the selection part, the addition and subtraction calculation part shifts right or shifts left part of the result of performing the addition and subtraction calculation and divides the result of performing the addition and subtraction calculation into values each being storable in one of a plurality of buffers.

Floating-point calculation apparatus, program, and calculation apparatus

A flow meter using digital signals constructed in a small size and outputting an electric signal of a position of a float in a tapered tube with high accuracy is provided. A first reflecting meanshas a rayentered from the entering meansand reflected, and a second reflecting meansreflecting the rayreflected from the first reflecting meanstoward the first reflecting meansat least once. An emitting meanshas the rayentered and emits it, and an image sensorhas the rayfrom the emitting meansentered and outputs an image of the floatin the tapered tube, while a control portion executes input processing of an image and outputs an electric signal Sindicating the flow rate of a fluidby detecting the position of the float

Flow meter using digital signals

A flow meter outputs an electric signal of a position a float within a taper-shaped tube precisely. A taper-shaped tube is made of an approximately transparent material, is mounted approximately vertically, and circulates a fluid such as water or the like, and a float is arranged within the taper-shaped tube so as to displace in a vertical direction in correspondence to a flow rate of the fluid. An LED irradiates a light ray to the taper-shaped tube and the float, makes the light ray to transmit through the taper-shaped tube, and generates a transmitted light ray. The image sensor outputs a digital image of the float within the taper-shaped tube, and a control portionexecutes an input process of the digital signal detects the position of the float, and outputs an electric signal showing a flow rate of the fluid.

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Tokyo, Japan

Tomoyuki Okumura