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1. 发明授权

US4910463A Halogen monitoring apparatus 失效
标题翻译：卤素监测仪
公开(公告)号：US4910463A
公开(公告)日：1990-03-20
申请号：US134293
申请日：1987-12-17
申请人： William J. Williams, II , Daniel M. Thorsen
发明人： William J. Williams, II , Daniel M. Thorsen
IPC分类号： G01N27/68 , G01N27/70 , H01J37/244 , H01J49/06
CPC分类号： G01N27/70
摘要： An apparatus for monitoring the concentration levels of halogen gas in a gaseous atmosphere as confined in an enclosure over a relatively extended period of time. Such monitoring apparatus includes a sensor including first and second electrodes disposed to define a space therebetween through which the gaseous atmosphere flows and a voltage source for applying a voltage between the first and second electrodes whereby an ionization current flows to the first electrode. A control mechanism illustratively in the form of a programmed microcontroller monitors the ionization current collected by the first electrode as the output signal of the sensor, to determine an increase therein as would be indicative of a halogen leak. Upon determining an increase of the sensor output signal above a predetermined difference, the control mechanism removes the energization from the halogen sensor whereby the ionization current is terminated and the life of the sensor extended. The control mechanism further causes an initial reading of the sensor signal to be taken and to be stored, whereby subsequent sensor readings may be compensated by subtracting the stored value therefrom to provide a compensated output indicative of the increased halogen level with respect to the initial background reading thereof. The relatively small halogen sensor output is amplified by a variable gain amplifier.

2. 发明授权

US5444435A Halogen monitoring apparatus 失效
标题翻译：卤素监测仪
公开(公告)号：US5444435A
公开(公告)日：1995-08-22
申请号：US38296
申请日：1993-03-29
申请人： William J. Williams, II , Daniel M. Thorsen
发明人： William J. Williams, II , Daniel M. Thorsen
IPC分类号： G01N27/70 , G01N33/00 , G08B17/10
CPC分类号： G01N33/0067 , G01N27/70 , G01N33/0052
摘要： There is disclosed apparatus for monitoring the concentration levels of halogen gas in a gaseous atmosphere as confined in an enclosure over a relatively extended period of time. Such monitoring apparatus includes a sensor including first and second electrodes disposed to define a space therebetween through which the gaseous atmosphere flows and a voltage source for applying a voltage between the first and second electrodes whereby an ionization current flows to the first electrode. A control mechanism illustratively in the form of a programmed microcontroller monitors the ionization current collected by the first electrode as the output signal of the sensor, to determine an increase therein as would be indicative of a halogen leak. Upon determining an increase of the sensor output signal above a predetermined difference, the control mechanism removes the energization from the halogen sensor whereby the ionization current is terminated and the life of the sensor extended. The control mechanism further causes an initial reading of the sensor signal to be taken and to be stored, whereby subsequent sensor readings may be compensated by subtracting the stored value therefrom to provide a compensated output indicative of the increased halogen level with respect to the initial background reading thereof. The relatively small halogen sensor output is amplified by a variable gain amplifier, whose gain setting is automatically set over a large range of sensitivities.
摘要翻译：公开了一种用于在相对延长的时间段内监视限制在外壳中的气态气氛中的卤素气体的浓度水平的装置。这种监视装置包括：传感器，包括设置成限定气体大气流过的空间的第一和第二电极;以及用于在第一和第二电极之间施加电压的电压源，由此电离电流流向第一电极。示例性地以编程的微控制器的形式的控制机构将由第一电极收集的电离电流监视为传感器的输出信号，以确定其中的增加，这将指示卤素泄漏。当确定传感器输出信号的增加高于预定差值时，控制机构从卤素传感器去除激励，从而终止电离电流并延长传感器的寿命。控制机构进一步使传感器信号的初始读取被采集并被存储，从而可以通过从其中减去所存储的值来补偿后续传感器读数，从而提供指示相对于初始背景增加的卤素水平的补偿输出阅读。相对较小的卤素传感器输出由可变增益放大器放大，其增益设置在大范围的灵敏度下自动设置。

3. 发明授权

US5198774A Gas monitoring apparatus 失效
标题翻译：气体监测仪
公开(公告)号：US5198774A
公开(公告)日：1993-03-30
申请号：US495822
申请日：1990-03-19
申请人： William J. Williams, II , Daniel M. Thorsen
发明人： William J. Williams, II , Daniel M. Thorsen
IPC分类号： G01N27/70
CPC分类号： G01N27/70
摘要： There is disclosed apparatus for monitoring the concentration levels of halogen gas in a gaseous atmosphere as confined in an enclosure over a relatively extended period of time. Such monitoring apparatus includes a sensor including first and second electrodes disposed to define a space therebetween through which the gaseous atmosphere flows and a voltage source for applying a voltage between the first and second electrodes whereby an ionization current flows to the first electrode. A control mechanism illustratively in the form of a programmed microcontroller monitors the ionization current collected by the first electrode as the output signal of the sensor, to determine an increase therein as would be indicative of a halogen leak. Upon determining an increase of the sensor output signal above a predetermined difference, the control mechanism removes the energization from the halogen sensor whereby the ionization current is terminated and the life of the sensor extended. The control mechanism further causes an initial reading of the sensor signal to be taken and to be stored, whereby subsequent sensor readings may be compensated by subtracting the stored value therefrom to provide a compensated output indicative of the increased halogen level with respect to the initial background reading thereof. The relatively small halogen sensor output is amplified by a variable gain amplifier, whose gain setting is automatically set over a large range of sensitivities.
摘要翻译：公开了一种用于在相对延长的时间段内监视限制在外壳中的气态气氛中的卤素气体的浓度水平的装置。这种监视装置包括：传感器，包括设置成限定气体大气流过的空间的第一和第二电极;以及用于在第一和第二电极之间施加电压的电压源，由此电离电流流向第一电极。示例性地以编程的微控制器的形式的控制机构将由第一电极收集的电离电流监视为传感器的输出信号，以确定其中的增加，这将指示卤素泄漏。当确定传感器输出信号的增加高于预定差值时，控制机构从卤素传感器去除激励，从而终止电离电流并延长传感器的寿命。控制机构进一步使传感器信号的初始读取被采集并被存储，从而可以通过从其中减去所存储的值来补偿后续传感器读数，从而提供指示相对于初始背景增加的卤素水平的补偿输出阅读。相对较小的卤素传感器输出由可变增益放大器放大，其增益设置在大范围的灵敏度下自动设置。

4. 发明授权

US07022993B1 Infrared leak detector 失效
标题翻译：红外线检漏仪
公开(公告)号：US07022993B1
公开(公告)日：2006-04-04
申请号：US10899182
申请日：2004-07-26
申请人： William J. Williams, II , Glenn A. Dejong
发明人： William J. Williams, II , Glenn A. Dejong
IPC分类号： G01J5/02
CPC分类号： G01N21/11 , G01M3/047 , G01N21/3504 , G01N2201/0221
摘要： Leak detector using infrared for identifying the presence and concentration of a selected gas. For detection, radiation from an infrared emitter penetrates the sample, which is analyzed spectrally, and results in a wave length-specific signal being generated at the output. By controlling the optical filter, the radiation is controlled at a selected wavelength, to ensure coverage of all selected compounds. For refrigerants, the selected wavelength can be between approximately 8 to approximately 10 microns. This wavelength obscures other signals, thus minimizing false alarms. The leak detector has a faster time with no adverse impacts on the accuracy of the compound being detected. To further minimize false alarms and to ensure that the emitter does not come in contact with the gas, an additional filter can be used. For refrigerant compounds, the filter can block out signals below approximately 6 microns. For detecting refrigerants, two filters can be used.
摘要翻译：泄漏探测器使用红外线识别选定气体的存在和浓度。为了进行检测，来自红外发射器的辐射穿透样品，其被频谱分析，并导致在输出端产生波长特定信号。通过控制光学滤波器，辐射被控制在选定的波长，以确保覆盖所有选定的化合物。对于制冷剂，所选择的波长可以在约8至约10微米之间。该波长掩盖其他信号，从而最大限度地减少假警报。泄漏检测器具有更快的时间，对所检测的化合物的准确度没有不利影响。为了进一步减少误报警并确保发射器不与气体接触，可以使用附加的过滤器。对于制冷剂化合物，过滤器可以阻挡大约6微米以下的信号。为了检测制冷剂，可以使用两个过滤器。

5. 发明授权

US06791088B1 Infrared leak detector 失效
标题翻译：红外线检漏仪
公开(公告)号：US06791088B1
公开(公告)日：2004-09-14
申请号：US10138399
申请日：2002-05-03
申请人： William J. Williams, II , Glenn A. Dejong
发明人： William J. Williams, II , Glenn A. Dejong
IPC分类号： G01J502
CPC分类号： G01N21/11 , G01M3/047 , G01N21/3504 , G01N2201/0221
摘要： A leak detector using an infrared emitter and pyroelectric sensor to form an instrument for identifying the presence and concentration of a selected material type gas compound, such as a refrigerant gas compound within a given sample, such as a sample of ambient air. For the detection, a radiation flux coming from an infrared emitter penetrates the sample, which is analyzed spectrally, and results in a wave length-specific signal being generated at the output of the detector. By controlling the type of optical filter, the radiation energy is controlled at a selected wavelength, to ensure coverage of all selected compounds. For refrigerants, the selected wavelength can be between approximately 8 to approximately 10 microns in the wavelength range. This selected wavelength obscures other signals, thus minimizing false alarms. By not chopping or pulsing the emitter, the leak detector has a faster response time with no adverse impacts on the accuracy of the compound material being detected. To further minimize false alarms and to ensure that the emitter does not come in contact with the sample gas, an additional filter can be positioned in the optical path. For refrigerant compounds, the filter can block out signals below approximately 6 microns. For detecting refrigerants, two filters can be used: 1) a broadband filter to allow detection of all refrigerants currently on the market, and 2) a narrowband filter to limit detection only to R134a which possesses a narrow wavelength, so that detection of other compounds (or contaminants) can be minimized.
摘要翻译：一种使用红外发射器和热释电传感器的泄漏检测器，用于形成用于识别所选材料型气体化合物（例如给定样品内的制冷剂气体化合物，例如环境空气样品）的存在和浓度的仪器。为了检测，来自红外发射器的辐射通量穿透样品，其被频谱分析，并导致在检测器的输出处产生波长特定信号。通过控制滤光器的类型，辐射能量被控制在选定的波长，以确保覆盖所有选定的化合物。对于制冷剂，所选择的波长在波长范围内可以在约8至约10微米之间。该选择的波长掩盖了其他信号，从而使假警报最小化。通过不斩波或脉冲发射器，泄漏检测器具有更快的响应时间，对被检测的复合材料的精度没有不利影响。为了进一步最小化假警报并确保发射器不与样品气体接触，可以在光路中定位附加的滤光器。对于制冷剂化合物，过滤器可以阻挡大约6微米以下的信号。为了检测制冷剂，可以使用两个过滤器：1）宽带过滤器，用于检测目前市场上的所有制冷剂，以及2）窄带过滤器，仅限于具有窄波长的R134a检测，以便检测其他化合物（或污染物）可以最小化。

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