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|7726204||Heat signal writing device|
A heat signal writing device forming a clear writing pattern of a heat signal is provided. A heat signal writing device 10 for writing a heat signal in a medium traveling through a channel, which is secured to an appropriate position on the channel through wh...
|6708570||Flow rate measurement method, ultrasonic flow rate meter, flow velocity measurement method, temperature or pressure measurement method, ultrasonic thermometer and ultrasonic pressure gage|
An flow rate measurement method and a ultrasonic flow meter is provided, which can measure a flow velocity accurately by utilizing a ultrasonic wave having a frequency by which a phase difference becomes zero. According to the flow rate measurement method, a referen...
|6675111||Method and apparatus for measuring flow velocity and method and apparatus for measuring flow rate|
Disclosed is a method and apparatus for measuring flow velocity and flow rate of a fluid in a tube member or the like with high precision. A flow vel0ocity measuring method has: a step of allowing a signal sound of ultrasound to propagate through a fluid ...