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1. 发明专利

JP2004093566A Apparatus and method for discharging chemical liquid 审中-公开
公开(公告)号：JP2004093566A
公开(公告)日：2004-03-25
申请号：JP2003304039
申请日：2003-08-28
申请人： L'air Liquide Sa Pour L'etude & L'exploitation Des Procedes Georges Claude , レール・リキード−ソシエテ・アノニム・ア・ディレクトワール・エ・コンセイユ・ドゥ・スールベイランス・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード
发明人： RAMEAU GUILLAUME , MENGOLLI PASCAL
IPC分类号： G01F23/00 , G01F23/20
CPC分类号： G01F23/0015 , G01F23/205
摘要： PROBLEM TO BE SOLVED: To provide a simple, inexpensive and reliable solution for determining the quantity of a liquid chemical product remaining in a container. SOLUTION: The method is a method for measuring the quantity of a chemical liquid 26 remaining in a container 10. The container is connected to a means for making the chemical liquid flow from the container to a used location or the other container 24. Weight P i of the liquid in the container is measured at time t i (i is variable from 0 to n). The measurement is repeated at a time t i+1 , a time t i+2 and a time t n (n is an integer larger than 3). A weight change ΔP i =P i -P i+1 between the time t i , t i+1 is measured for Δt=t i-1 -t i . When ΔP i becomes smaller than a preset fraction F of weight of the container and/or initial weight of the liquid accommodated in the container, a signal S which seems to express that the container becomes empty, is generated. COPYRIGHT: (C)2004,JPO

2. 发明专利

JPS5942418A Volume measuring device 失效
标题翻译：体积测量装置
公开(公告)号：JPS5942418A
公开(公告)日：1984-03-09
申请号：JP15300182
申请日：1982-09-02
申请人： Matsushita Electric Ind Co Ltd
发明人： NISHIKIORI AKIRA
IPC分类号： G01G19/52 , G01F23/20 , G01G23/365
CPC分类号： G01F23/205
摘要： PURPOSE:To execute a practical measurement of a liquid even in case when a measured value cannot be confirmed visually, by constituting a device in such a way that a display sound is generated when the volume of a liquid reaches a prescribed measured value. CONSTITUTION:Prior to start of a measurement, a zero point is confirmed by setting a switching knob 30 to a position of zero, turning a zero point adjusting knob 31, and sounding a buzzer 29 in a state that a liquid vessel 1 is empty. For instance, when it is desired to measure a liquid of 200ml, corresponding relative voltage is generated by adjusting a voltage adjusting circuit 27. In this state, when a liquid is put into the liquid vessel 1, a strain gauge generates a strain, a resistance value of a resistor 15 of a bridge 16 is varied, the balance of the bridge 16 is broken, and an output corresponding to it is inputted to a comparing circuit 25 through an amplifying circuit 23. When the liquid is put in by 200ml, the comparing circuit 25 outputs a coincidence signal in accordance with coincidence with output voltage from the bridge 16, operates a driving circuit 28, and sounds a buzzer 29, by which the measurement can be known.
摘要翻译：目的：即使在无法可视地确认测定值的情况下，通过以液体的体积达到规定的测定值来产生显示声的方式构成装置，也可以进行液体的实际测量。构成：在测量开始之前，通过将切换旋钮30设定为零位置，转动零点调节旋钮31，并在液体容器1为空的状态下发出蜂鸣器29来确认零点。例如，当需要测量200ml的液体时，通过调节电压调节电路27产生相应的相对电压。在这种状态下，当液体被放入液体容器1中时，应变计产生应变，桥16的电阻器15的电阻值变化，桥接器16的平衡被破坏，并且与其对应的输出通过放大电路23输入到比较电路25.当液体放入200ml时，比较电路25根据与桥16的输出电压一致地输出一致信号，操作驱动电路28，并且发出蜂鸣器29，通过该蜂鸣器可以知道测量。

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