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1. 发明授权

US09645036B2 Method of inspecting pressure switch 有权
公开(公告)号：US09645036B2
公开(公告)日：2017-05-09
申请号：US14809510
申请日：2015-07-27
申请人： Fei-Che Hung
发明人： Fei-Che Hung
IPC分类号： G01R31/00 , G01L27/00
CPC分类号： G01L27/007 , H01H11/0062 , H01H35/24
摘要： A method of inspecting pressure switch for inspecting if stability and the pressure switch's setpoint are within the standard range includes steps of: providing a standard pressure generator and a pressure detector, and connecting the standard pressure generator to the pressure switch and the pressure detector. Then, provide an inspector, and create data which includes a setpoint pressure value and a pressure switch operation condition. Next, electrically connect the inspector to the pressure switch and the pressure detector. Next, standard pressure generator applies pressure on the pressure detector and the pressure switch. Record the set pressure value and the reset pressure value of the pressure switch and calculate error values between the set pressure value, the reset pressure value and the default pressure value, and judge if stability and the pressure switch's setpoint are within the standard range according the error values.

2. 发明授权

US09551434B1 Method of inspecting switching time with fluid control valve 有权
标题翻译：用流体控制阀检查切换时间的方法
公开(公告)号：US09551434B1
公开(公告)日：2017-01-24
申请号：US14809530
申请日：2015-07-27
申请人： Fei-Che Hung
发明人： Fei-Che Hung
IPC分类号： F16K37/00
CPC分类号： F16K37/0083 , F16K37/0075 , Y10T137/0396
摘要： A method of inspecting switching time with fluid control valve used for inspecting operating time to turn-on or turn-off a valve door of a fluid control valve is disclosed. The method comprises following steps: firstly provide an inspector with a counting unit, a timer, a first limited switch and a second limited switch. The counting unit electrically connects to the timer and a pneumatic module of fluid control valve, the first limited switch and second limited switch connect to the timer, and the first limited switch contacts the rod of the fluid control valve rod. Then, input basic data of corresponding fluid control valve, which comprises operating conditions of the fluid control valve. Next, activate the pneumatic module and start to time, and the axial shift generated by the rod of the fluid control valve triggers the second limited switch to stop timing. Lastly, record and display operating time.
摘要翻译：公开了一种使用流体控制阀检查切换时间的方法，该流体控制阀用于检查操作时间以打开或关闭流体控制阀的阀门。该方法包括以下步骤：首先向检查员提供计数单元，定时器，第一有限开关和第二有限开关。计数单元电连接到定时器和流体控制阀的气动模块，第一限位开关和第二限位开关连接到定时器，第一限位开关接触流体控制阀杆的杆。然后，输入相应流体控制阀的基本数据，其中包括流体控制阀的操作条件。接下来，激活气动模块并开始时间，并且由流体控制阀的杆产生的轴向移动触发第二限位开关以停止定时。最后，记录和显示操作时间。

3. 发明授权

US10605648B2 Testing system for float liquid level transmitter 有权
公开(公告)号：US10605648B2
公开(公告)日：2020-03-31
申请号：US16169816
申请日：2018-10-24
申请人： Fei-Che Hung
发明人： Fei-Che Hung
IPC分类号： G01F25/00 , G01F23/30
摘要： A testing system for float liquid level transmitter includes a computation unit, an operation interface, a storage unit and a display unit. The computation unit computes basic data associated with the float liquid level transmitter to obtain corresponding standard values and the display unit displays the standard values. After a float liquid level transmitter performs measurement, the computation unit fetches displayed values measured by the float liquid level transmitter and obtain an error range by comparing the displayed values with the standard values; the computation unit analyzes the error range to provide analyzed data and determines whether the float liquid level transmitter is qualified based on the error range.

4. 发明授权

US09989438B2 Control valve testing method 有权
公开(公告)号：US09989438B2
公开(公告)日：2018-06-05
申请号：US14809574
申请日：2015-07-27
申请人： Fei-Che Hung
发明人： Fei-Che Hung
IPC分类号： G01M13/00
CPC分类号： G01M13/00
摘要： A control valve testing method comprises steps: providing a testing device, inputting data in the testing device, electrically connecting the testing device to the location transmitter installed on the control valve, the transmitter connected with a pointer of a valve spindle, the testing device providing an electric current with a testing opening to an electric current air transformer, the electric current air transformer controlling air compressor applying a specific pressure according to the current on the control valve for triggering a valve spindle action to drive the location transmitter to obtain valve spindle action strokes data, transferring the data and performing a comparison between the data with the previously inputted actual opening data for analyzing the error percentage of the actual opening and the testing opening. If the error percentage is within a tolerance range, the result is qualified, and if not, the result is not qualified.

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