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1. 发明授权

US3832549A Signal conditioner apparatus for compensating an electronic material gaging signal 失效
标题翻译：用于补偿电子材料捕捉信号的信号调节器装置
公开(公告)号：US3832549A
公开(公告)日：1974-08-27
申请号：US26511072
申请日：1972-06-22
申请人： BETHLEHEM STEEL CORP
发明人： MANGAN E , BARTLETT W
IPC分类号： G01B15/02 , G01N23/16 , G01N23/00
CPC分类号： G01N23/16 , G01B15/025
摘要： Signal conditioner apparatus multiplies electronic material gaging signal by one or more predetermined variable scaling factors to compensate for variations in other material properties which affect the gaged property. For example, material thickness gaging signal variations caused by material temperature variations are compensated for by simultaneously feeding the thickness signals through two adjustable-gain amplifiers preset at separate values which establish an adjustable range of temperature compensation. Amplifier outputs are proportioned in response to a material temperature measurement made during material gaging, thereby providing a single temperature compensated material thickness signal at an output. Material composition compensation is provided in combination with temperature compensation by first feeding the thickness signal through a single presettable-gain amplifier. All amplifier gains are preset or controlled from a data source which correlates compensation requirements with temperature and composition effects on material thickness gaging.
摘要翻译：信号调理装置将电子材料测量信号乘以一个或多个预定的可变比例因子以补偿影响测量特性的其它材料特性的变化。例如，由材料温度变化引起的材料厚度测量信号变化通过同时馈送厚度信号通过两个可调节增益放大器进行补偿，这两个可调增益放大器以分立的值预设，建立温度补偿的可调节范围。响应于在材料测量期间进行的材料温度测量，放大器输出成比例，从而在输出端提供单个温度补偿材料厚度信号。通过首先通过单个可预置增益放大器馈送厚度信号，结合温度补偿提供材料组成补偿。所有的放大器增益都是从数据源预设或控制的，数据源将补偿要求与材料厚度测量的温度和成分效应相关联。

2. 发明授权

US3832542A Wide range radiation gage having a controlled-gain photodetector for determining a material property 失效
标题翻译：具有用于确定材料属性的控制增益光电转换器的宽范围辐射管
公开(公告)号：US3832542A
公开(公告)日：1974-08-27
申请号：US26541572
申请日：1972-06-22
申请人： BETHLEHEM STEEL CORP
发明人： BARTLETT W , MANGAN E
IPC分类号： G01N23/16 , G01T1/20
CPC分类号： G01N23/16
摘要： A HIGH ENERGY NUCLEAR RADIATION SOURCE AND A SCINTILLATION DETECTOR ARE COMBINED TO GATE A MATERIAL PROPERTY, SUCH AS STEEL PLATE THICKNESS, WHEN THE MATERIAL IS PLACED IN A BEAM OF RADIATION. THE DETECTOR INCLUDES A PHOTOMULTIPLIER TUBE WHICH OPERATES IN A SERVO LOOP WITH A VOLTAGE CONTROLLED VARIABLE DYNODE VOLTAGE SOURCE, THE LATTER CONTROLLING TUBE GAIN TO MAINTAIN ANODE CURRENT SUBSTANTIALLY CONSTANT OVER A WIDE RANGE OF GAGING. GAGE OPEATION IS BASED ON THE PHENOMENA OF A NON-LINEAR PHOTOMULTIPLIER TUBE GAIN CHARACTERISTIC BEING INVERSE AND NEARLY EQUAL TO THE NONLINEAR RADIATION ABSORPTION CHARACTERISTIC OF THE MATERIAL BEING GAGED. THIS YIELDS A DYNODE VOLTAGE WHICH VARIES ONLY SLIGHLY NONLINEARLY AS A MEASURE OF THE MATERIAL PROPERTY. THJE GAGE INCLUDES A LINEARIZER FOR CORRECTING THE NONLINEARITY OF A FRACTION OF THE DYNODE VOLTAGE AND THIS SIGNAL IS ULTIMATELY APPLIED TO A MATERIAL PROPERTY INDICATOR. ALSO INCLUDED IS AN AUTOMATIC ZERO ADJUSTER FOR CONTINUOUSLY PROVIDING A ZERO-BASED GAGING

SIGNAL UNDER VARIABLE OPERATING CONDITIONS, AND A MATERIAL PRESENCE/ABSENCE DETECTOR FOR CASUING THE ZERO ADJUSTER TO ACT ONLY DURING THE ABSENCE OF MATERIAL FROM THE GAGE. IN ADDITION, A SIGNAL CONDITIONER MODIFIES THE LINEARIZED SIGNAL TO COMPENSATE FOR VARIATIONS IN OTHER MATERIAL PROPERTIES WHICH AFFECT THE GAGING PROPERTY.

3. 发明授权

US3832550A Wide-range radiation gage for determining deviation of a material property with a controlled-gain detector in an interruptable self-balancing measuring loop 失效
标题翻译：宽范围辐射测量仪，用于通过可控自动平衡测量环路中的控制增益检测器确定材料性质的偏差
公开(公告)号：US3832550A
公开(公告)日：1974-08-27
申请号：US26511272
申请日：1972-06-22
申请人： BETHLEHEM STEEL CORP , JONES P
发明人： BARTLETT W , HOFFMAN C , JONES D , MANGAN E
IPC分类号： G01B15/02 , G01N23/16
CPC分类号： G01B15/02 , G01N23/16
摘要： Deviation of a gaged material property, such as material thickness, density, or weight-per-unit area, from a nominal value in a wide range of values is determined by a single-range, penetrative-beam type of radiation gage having an interruptable self-balancing measuring loop that includes a controlled-gain detector, thereby providing the radiation gage with a continuously variable gain characteristic. Any nominal value of material gaging property may be pre-established in a wide range of values by inserting digital material standards from a built-in magazine into the radiation beam, thereby causing the selfbalancing loop to balance at a corresponding point in the variable sensitivity range. The presence of material to be gaged is detected before entering the radiation beam and interrupts and holds the self-balancing loop at the preset nominal value, while also removing the standards from the radiation beam. Subsequent measuring signals, together with a nominal value signal, are processed in a deviation gain adjusting circuit, whereby a linear deviation signal throughout the entire variable gain range is produced and fed to a deviation indicator.
摘要翻译：通过具有可中断的单范围，透射光束类型的辐射计确定在宽范围值中的标称材料特性（例如材料厚度，密度或每单位面积重量）的偏差自平衡测量回路，其包括受控增益检测器，从而为辐射计提供连续可变的增益特性。材料测量特性的任何标称值可以通过将数字材料标准从内置盒插入到辐射束中而在宽范围的值中预先建立，从而使自平衡环在变量的对应点处平衡灵敏度范围。在进入辐射束之前检测要被放大的材料的存在，并中断并将自平衡环保持在预设的标称值，同时还从辐射束去除标准。随后的测量信号与标称值信号一起在偏差增益调整电路中进行处理，从而产生整个可变增益范围内的线性偏差信号并将其馈送到偏差指示器。

4. 发明授权

US3832551A Radiation gage with sample and hold feature in deviation measuring circuit 失效
标题翻译：放大测量电路中的样品和保持特性
公开(公告)号：US3832551A
公开(公告)日：1974-08-27
申请号：US26514072
申请日：1972-06-22
申请人： BETHLEHEM STEEL CORP
发明人： BARTLETT W , MANGAN E
IPC分类号： G01B15/02 , G01N23/16 , G01N23/02
CPC分类号： G01N23/16 , G01B15/025
摘要： Utility of a radiation gage having a direct-reading measuring circuit for determining a material property, such as thickness, density, or weight-per-unit area, is extended by use of a thickness deviation measuring circuit arrangement. In a thickness deviation gage, for example, the latter circuit arrangement includes a sample-and-hold circuit for automatically storing an initial thickness signal detected when the material first enters the gage, and a difference amplifier for comparing instantaneous or subsequent thickness signals with the stored thickness signal and producing a thickness deviation signal. The thickness deviation signal plus the stored and instantaneous thickness signals are fed separately to utilization devices such as indicators and recorders as used in the thickness profile analysis of said material from end-to-end, or said thickness deviation signals may provide a control signal in an automatic control system.
摘要翻译：通过使用厚度偏差测量电路装置来扩展具有用于确定诸如厚度，密度或每单位面积重量的材料特性的直接读取测量电路的辐射计的实用性。例如，在厚度偏差计中，后一电路装置包括用于自动存储当材料首次进入量规时检测到的初始厚度信号的采样和保持电路，以及用于将瞬时或后续厚度信号与存储厚度信号并产生厚度偏差信号。厚度偏差信号加上存储和瞬时厚度信号被分别馈送到诸如指示器和记录器之类的利用装置，如在端到端的所述材料的厚度分布分析中使用的，或者所述厚度偏差信号可以提供控制信号自动控制系统。

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