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公开(公告)号：US5315876A
公开(公告)日：1994-05-31
申请号：US883143
申请日：1992-05-14
申请人： Eugene A. Glassey , Ralph A. Loh
发明人： Eugene A. Glassey , Ralph A. Loh
CPC分类号： G01L11/006
摘要： A purge gas pressure monitoring system has a piezometer tube running from a pressure measuring instrument into a medium to be monitored. A temperature detector device extends the length of the piezometer tube. Outputs from the pressure measuring instrument and the temperature detector device are coupled to a central processing device or microcomputer for monitoring the outputs and using the outputs along with stored data to calculate a corrected pressure signal which is corrected for errors including errors arising as a result of variations of the average temperature along the piezometer line from a reference value.
摘要翻译： 吹扫气体压力监测系统具有从压力测量仪器运行到要监测的介质的压力计管。 温度检测器装置延伸压力计管的长度。 来自压力测量仪器和温度检测器装置的输出耦合到中央处理装置或微型计算机，用于监测输出并将输出与存储的数据一起使用，以计算校正的压力信号，该压力信号针对包括由于 沿压力计线的平均温度与参考值的变化。
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公开(公告)号：US5279161A
公开(公告)日：1994-01-18
申请号：US868546
申请日：1992-04-14
申请人： Eugene A. Glassey , Ralph A. Loh
发明人： Eugene A. Glassey , Ralph A. Loh
CPC分类号： G01L11/006
摘要： A temperature compensating device is provided for a purge gas pressure monitoring system in which a piezometer line has an outlet end for submerging in a medium to be monitored and an opposite end for connection to a suitable pressure responsive instrument, with a purge gas supply connected to the line so as to supply purge gas as bubbles from the outlet end of the tube. A temperature detector device runs the length of the piezometer line to produce an output signal proportional to an average of the temperature along the length of the line. This may be a resistance temperature detector in the form of a U-shaped conductive wire with opposite legs of the U wound spirally in opposite directions along the length of the line with the connected end of the U being located at the outlet end of the tube. This provides a variable resistance which varies as a function of the average temperature, and which can be connected to conditioning circuitry for producing a desired temperature dependent output.
摘要翻译： 提供了一种用于吹扫气体压力监测系统的温度补偿装置，其中压力计管线具有浸没在要监测的介质中的出口端和用于连接到合适的压力响应仪器的相对端，净化气体供应源连接到 该管线从管的出口端供给吹扫气体作为气泡。 温度检测器装置运行压力计线的长度以产生与沿着线的长度的温度的平均值成比例的输出信号。 这可以是U型导电线形式的电阻温度检测器，U形导线的相对腿沿着线的长度螺旋地沿相反的方向缠绕，U的连接端位于管的出口端 。 这提供了作为平均温度的函数变化的可变电阻，并且其可以连接到用于产生期望的温度依赖输出的调节电路。
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公开(公告)号：US5005408A
公开(公告)日：1991-04-09
申请号：US411873
申请日：1989-09-25
申请人： Eugene A. Glassey
发明人： Eugene A. Glassey
CPC分类号： G01F23/14 , G01F23/168 , G01N9/28
摘要： A method and apparatus for monitoring liquid levels using pressure responsive instruments is described, in which an arrangement for compensating for the effects of errors including gas weights errors is provided. The required compensation factor for a particular installation is first calculated theoretically, and then used in order to raise the output signal of the instrument electronically by the calculated factor. In one arrangement, the output signal is amplified by the desired factor. Alternatively, the excitation voltage of the instrument itself, or of a potentiometer used to interface the instrument to electronic data acquisition devices, is varied in order to raise its output voltage by the desired compensation factor.
摘要翻译： 描述了一种使用压力响应仪器监测液位的方法和装置，其中提供了用于补偿包括气体重量误差的误差影响的装置。 首先在理论上计算特定装置所需的补偿因子，然后用于以电子方式将仪器的输出信号提高计算系数。 在一种布置中，输出信号被放大所需要的因子。 或者，仪器本身或用于将仪器与电子数据采集装置接口的电位器的激励电压是变化的，以便将其输出电压提高期望的补偿因子。
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公开(公告)号：US4266430A
公开(公告)日：1981-05-12
申请号：US100937
申请日：1979-12-06
申请人： Gene Glassey
发明人： Gene Glassey
CPC分类号： G01L11/008 , G01L13/023 , G01L19/04 , G01L9/0036 , G01L9/10
摘要： A balance beam has a fulcrum, at least one bellows (connected to the source of pressure or vacuum) acting on the beam at a point along its length and a connection to the armature of a differential transformer at one end. A poise is mounted for movement along the beam by rollers riding on shoulders formed on the beam in a unique arrangement. A carriage having a connection to the poise at the elevation of the axes of the rollers moves the poise and is, in turn, driven by an expansible belt, chain or cable extending around two sprockets, one of which is driven by a servo-motor controlled by a circuit including the differential transformer. Careful provision is made for temperature compensation both longitudinally and transversely of the beam yet the drive elements are elastic. The bellows may be moved to different locations relative to the beam by use of pre-drilled holes in the beam and base plate. Two bellows, on opposite sides of the fulcrum, may be used to gauge pressure differences.
摘要翻译： 平衡梁具有支点，至少一个波纹管（连接到压力或真空源）作用在沿其长度的点处的梁上，以及在一端与差动变压器的电枢的连接。 安装一个平行轴，以独特的布置骑在肩上形成的梁上，沿着梁运动。 具有与辊的轴线的高度处的泊口的连接的滑架移动，并且由可伸缩的带，链条或电缆驱动，该链条或缆绳围绕两个链轮延伸，其中一个由伺服电机驱动 由包括差动变压器的电路控制。 小心地对梁的纵向和横向进行温度补偿，但驱动元件是弹性的。 波纹管可以通过使用梁和底板中的预钻孔而相对于梁移动到不同的位置。 两个波纹管在支点的相对侧可用于测量压差。
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公开(公告)号：US5105897A
公开(公告)日：1992-04-21
申请号：US669997
申请日：1991-03-15
申请人： Eugene A. Glassey
发明人： Eugene A. Glassey
IPC分类号： G01G21/23
CPC分类号： G01G21/23
摘要： A base assembly for a beam balance instrument includes a box-like, open bottom base of lightweight sheet metal having an elongated slot in its upper wall, and a reinforcing strip or bar inlaid into the slot for rigidly supporting parts of the balance. The reinforcing strip is thicker and bulkier than the remainder of the base, and the fulcrum which pivotally supports the beam above the base is rigidly fastened on the strip, as is the sensor for detecting tilting of the beam in response to an applied force, and the bellows if the balance instrument is of the type used in measuring pressure variations.
摘要翻译： 一种用于光束平衡仪器的基座组件，包括一个轻质金属板的箱状开口底部，其上部有一个细长的狭槽，以及镶嵌在槽中的加强条或条，用于刚性支撑天平的一部分。 加强条比基座的其余部分更厚和更大，并且将基座上方的梁枢转地支撑的支点刚性地紧固在条上，如用于响应于施加的力检测梁的倾斜的传感器，以及 如果平衡仪是用于测量压力变化的类型，波纹管。
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公开(公告)号：US4277981A
公开(公告)日：1981-07-14
申请号：US120694
申请日：1980-02-11
申请人： Gene Glassey
发明人： Gene Glassey
CPC分类号： G01L11/008 , G01L13/023 , G01L19/04 , G01L9/0036 , G01L9/10
摘要： A balance beam has a fulcrum, at least one bellows (connected to a source of pressure or vacuum) acting on the beam and a connection to the armature of a differential transformer at one end. A poise is mounted for movement along the beam by rollers riding on shoulders formed on the beam. A carriage having a connection to the poise at the elevation of the axes of the rollers moves the poise and is, in turn, driven by a screw turned by a servomotor controlled by the differential transformer. Provision is made for minimizing temperature error both longitudinally and transversely of the beam. The fulcrum and bellows may be moved to different locations relative to the beam, using spaced drilled holes in the beam and the base plate. Various readouts may be connected to the screw, and recorders and control devices may also be driven by the screw.
摘要翻译： 平衡梁具有支点，至少一个波纹管（连接到压力或真空源）作用在梁上，并在一端连接到差动变压器的电枢。 安装一个平行轴，用于沿着横梁上形成的肩膀上的滚轮运动。 在滚子轴线的高度处具有与泊位的连接的滑架移动，并且由由差速变压器控制的伺服电动机转动的螺杆驱动。 规定了使梁的纵向和横向的温度误差最小化。 支柱和波纹管可以相对于梁移动到不同的位置，使用梁和基板中的间隔开的钻孔。 各种读数可以连接到螺钉，并且记录器和控制装置也可以由螺钉驱动。
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公开(公告)号：US5447063A
公开(公告)日：1995-09-05
申请号：US852565
申请日：1992-03-17
申请人： Eugene A. Glassey
发明人： Eugene A. Glassey
CPC分类号： G01N9/22
摘要： A liquid bulk density monitoring apparatus which is particularly suitable for monitoring suspended sediment levels has a plummet suspended from one end of a balance beam and submerged in a vessel containing a liquid to be monitored. A sensor detects tilting of the beam from a reference or balance position as a result of variation in the sample bulk density, and produces an output to an output device for recording density variations. The apparatus is designed to compensate automatically for any changes in temperature, for example by making the plummet of a material having a coefficient of thermal expansion substantially the same as that of the liquid being monitored.
摘要翻译： 特别适用于监测悬浮沉积物水平的液体堆积密度监测装置具有从平衡梁的一端悬挂并浸没在容纳待监测液体的容器中的暴露物。 由于样品体积密度的变化，传感器检测到来自基准或平衡位置的光束的倾斜，并且产生输出到用于记录浓度变化的输出装置。 该设备被设计为自动补偿温度的任何变化，例如通过使具有与所监测的液体的热膨胀系数基本相同的热膨胀系数的材料的直径。
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公开(公告)号：US4274039A
公开(公告)日：1981-06-16
申请号：US124623
申请日：1980-02-25
申请人： Gene Glassey , Aldan D. Gomez
发明人： Gene Glassey , Aldan D. Gomez
摘要： A circuit for a servo-amplifier saves power when the position servo has reached balance. The servo input is a high frequency differential transformer having its armature positioned by mechanical means driven by a servo motor controlled through amplifier circuitry. The power to the amplifier is turned off in the vicinity of the servo null point.
摘要翻译： 当伺服放大器达到平衡时，伺服放大器的电路可以节省电力。 伺服输入是一种高频差动变压器，其电枢由通过放大器电路控制的伺服电机驱动的机械装置定位。 在伺服零点附近关闭放大器的电源。
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