公开(公告)号：US20160003783A1

公开(公告)日：2016-01-07

申请号：US14760713

申请日：2014-01-14

申请人： YAMAHA FINE TECHNOLOGIES CO., LTD.

发明人： Akihiro NARA ,  Yukitoshi SUZUKI ,  Hidemi TAKAHASHI

IPC分类号： G01N29/24

CPC分类号： G01N29/2437 ,  G01N29/043 ,  G01N29/343 ,  G01N2291/0289 ,  G01N2291/048 ,  G01N2291/102

摘要： An ultrasonic inspection device includes a signal generator configured to generate a square wave burst signal, an ultrasonic wave transmitter configured to drive a probe according to the square wave burst signal output from the signal generator and transmit ultrasonic waves toward an inspection subject, an ultrasonic wave receiver configured to receive the ultrasonic waves transmitted toward the inspection subject and propagated through the inspection subject, and a defect determinator configured to determine the presence or absence of a defect in the inspection subject based on a signal from the ultrasonic wave receiver, wherein the square wave burst signal has square waves that continuously alternate due to positive voltages and negative voltages relative to a ground.

摘要翻译： 超声波检查装置包括：信号发生器，其被配置为产生方波突发信号;超声波发射器，被配置为根据从信号发生器输出的方波脉冲串信号来驱动探针，并向检查对象发射超声波;超声波 接收器，被配置为接收朝向检查对象发送并通过检查对象传播的超声波;以及缺陷确定器，被配置为基于来自超声波接收器的信号来确定检查对象中的缺陷的存在或不存在，其中， 波峰信号具有由于相对于地的正电压和负电压而连续交替的方波。

公开(公告)号：US20190232235A1

公开(公告)日：2019-08-01

申请号：US16382611

申请日：2019-04-12

申请人： YAMAHA FINE TECHNOLOGIES CO., LTD.

发明人： Hidemi TAKAHASHI ,  Takeshi KATO ,  Yuichi DOKI ,  Hisashi ICHINOKIYAMA

IPC分类号： B01F3/02 ,  B01D53/22 ,  C25B1/10 ,  C25B9/08 ,  B01F11/00 ,  B01F15/04 ,  B01F13/00

CPC分类号： B01F3/028 ,  B01D53/22 ,  B01D53/229 ,  B01F3/02 ,  B01F11/0077 ,  B01F13/0033 ,  B01F15/04 ,  B01F15/0429 ,  B01F2215/0037 ,  C25B1/10 ,  C25B9/08 ,  G01M3/20

摘要： A mixed gas supply device includes: a hydrogen gas generation unit that includes a hydrogen generator, the hydrogen generator generating hydrogen gas by decomposition of water and supplying the hydrogen gas; a nitrogen gas generation unit that includes a filter, the filter separating nitrogen gas from air and supplying the nitrogen gas; a gas mixing unit that mixes the supplied hydrogen gas and the supplied nitrogen gas and generates mix gas including the hydrogen gas and the nitrogen gas; and a single base on which the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit are mounted, the hydrogen gas generation unit, the nitrogen gas generation unit, and the gas mixing unit being integrated. The gas mixing unit supplies the generated mixed gas to outside.