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1. 发明授权

US4731732A Method and apparatus for determining soluble gas content 失效
标题翻译：用于测定可溶性气体含量的方法和装置
公开(公告)号：US4731732A
公开(公告)日：1988-03-15
申请号：US763290
申请日：1985-08-07
申请人： Mark F. A. Warchol , Ronald C. Wojnar
发明人： Mark F. A. Warchol , Ronald C. Wojnar
IPC分类号： F27D21/00 , C22B21/06 , G01N7/14 , G01N27/04 , G01N33/20 , G01K1/12
CPC分类号： G01N7/14 , G01N33/203
摘要： A method of determining the gas content of a body or flow of molten metal of a known alloy. The method includes the steps of providing a carrier gas and directing the same into the molten metal. The carrier gas creates in the molten metal free surfaces such that molecules of the gas content migrate to the free surfaces and accumulate in the carrier gas. The method next determines the occurrence of equilibrium between the carrier gas and the gas content in the molten metal, the magnitude of equilibrium pressure, and the temperature of the molten metal. Signals are developed representing respectively the equilibrium pressure and temperature, which signals are directed to a computing device. Information is also directed to the computing device that represents the solubility of the gas content in the alloy of the molten metal under test. The computing device calculates the gas content of the molten metal from the equilibrium pressure, molten metal temperature and solubility information to provide a direct and accurate readout of the gas content.
摘要翻译：确定已知合金的熔体的体或气流的气体含量的方法。该方法包括提供载气并将其引导到熔融金属中的步骤。载气在熔融金属游离表面中产生，使得气体含量的分子迁移到自由表面并积聚在载气中。该方法接下来确定载气与熔融金属中的气体含量之间的平衡的发生，平衡压力的大小以及熔融金属的温度。开发信号分别表示平衡压力和温度，信号被引导到计算设备。信息还涉及表示气体含量在被测熔融金属的合金中的溶解度的计算装置。计算装置从平衡压力，熔融金属温度和溶解度信息计算熔融金属的气体含量，以提供气体含量的直接和准确的读数。

2. 发明授权

US5708209A Apparatus and method for ultrasonic particle detection in molten metal 失效
标题翻译：熔融金属超声波颗粒检测装置及方法
公开(公告)号：US5708209A
公开(公告)日：1998-01-13
申请号：US703719
申请日：1996-08-27
申请人： Richard C. Stiffler , Ronald C. Wojnar , Mark F. A. Warchol , Lawrence W. Cisko , John M. Urbanic
发明人： Richard C. Stiffler , Ronald C. Wojnar , Mark F. A. Warchol , Lawrence W. Cisko , John M. Urbanic
IPC分类号： G01N29/22 , G01N29/24 , G01N29/28 , G01N33/20
CPC分类号： A61B8/546 , G01N29/228 , G01N29/2462 , G01N29/28 , G01N33/206 , G01N2291/0252 , G01N2291/101 , G01N2291/102
摘要： An apparatus for conducting ultrasonic waves to and from a body of a molten material. The apparatus includes a buffer rod for transmitting ultrasonic waves to the molten metal, a second buffer rod for receiving ultrasonic waves from the molten metal, piezoelectric elements associated with each buffer rod, and cooling mechanisms for protecting the piezoelectric elements by maintaining the buffer rods at a prescribed rate of thermal equilibrium with the molten metal. The cooling mechanisms are configured so as to facilitate regulation of the air flow about the apparatus.
摘要翻译：一种用于向熔化材料的主体进行超声波的装置。该装置包括用于将超声波传送到熔融金属的缓冲杆，用于从熔融金属接收超声波的第二缓冲杆，与每个缓冲杆相关联的压电元件，以及通过将缓冲杆保持在与熔融金属的规定的热平衡速率。冷却机构构造成便于调节围绕设备的空气流动。

3. 发明授权

US4685325A Measurement of gas content in molten metal using a constant current source 失效
标题翻译：使用恒流源测量熔融金属中的气体含量
公开(公告)号：US4685325A
公开(公告)日：1987-08-11
申请号：US825344
申请日：1986-02-03
申请人： Mark F. A. Warchol
发明人： Mark F. A. Warchol
IPC分类号： G01N27/04 , G01N27/18
CPC分类号： G01N27/185
摘要： A single catharometer cell is employed in combination with a source of DC voltage and a device that provides constant electrical current for the cell. The constant current source provides a fixed reference for balancing against the electrical current flow through the cell when the cell contains only a carrier gas. An operational amplifier is connected across the cell and is adjustable to provide a desired output when a known amount of a second gas is present in the cell.
摘要翻译：一个单一的高温电池与直流电压源组合使用，并为电池提供恒定的电流。当电池仅包含载气时，恒流源提供了一个固定参考，用于平衡通过电池的电流。当电池中存在已知量的第二气体时，运算放大器连接在电池单元上并且可调节以提供期望的输出。

4. 发明授权

US4829810A Filament drive circuit 失效
标题翻译：灯丝驱动电路
公开(公告)号：US4829810A
公开(公告)日：1989-05-16
申请号：US140749
申请日：1988-01-04
申请人： Daniel A. Anderson , Ronald C. Wojnar , Mark F. A. Warchol
发明人： Daniel A. Anderson , Ronald C. Wojnar , Mark F. A. Warchol
IPC分类号： G01N27/18 , G01N33/20
CPC分类号： G01N27/18
摘要： An apparatus and a method is provided for determining the equilibrium of the partial pressures of two gases having different thermal conductivities. The apparatus includes a single sensor adapter to be contacted by the two gases, and heated by a flow of electrical current through the sensor. A circuit is provided for maintaining the sensor at a constant level of electrical resistance and hence at a constant temperature. The sensor, in addition, is connected as one leg of a bridge circuit, the output of which represents changes occurring in the thermal conductivity of a mixture of the gases.
摘要翻译：提供了一种用于确定具有不同热导率的两种气体的分压的平衡的装置和方法。该装置包括要被两种气体接触的单个传感器适配器，并通过电流通过传感器加热。提供了一种电路，用于将传感器保持在恒定的电阻水平，因此在恒定的温度下。此外，该传感器连接为桥接电路的一条支路，其输出表示在气体混合物的热导率中发生的变化。

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