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1. 发明授权

US5268745A Light radiation absorption gas detector 失效
标题翻译：光辐射吸收气体探测器
公开(公告)号：US5268745A
公开(公告)日：1993-12-07
申请号：US873951
申请日：1992-04-24
申请人： Brian A. Goody
发明人： Brian A. Goody
IPC分类号： G01J1/04 , G01J3/12 , G01J3/433 , G01N21/31 , G01N21/35 , G01N21/59 , G01N21/27
CPC分类号： G01J3/433 , G01N21/31 , G01J2003/1243 , G01J2003/4332 , G01N21/3504
摘要： A light radiation absorption gas detector for detecting the presence of a specified gas, comprising a light source, a region containing a gas to be detected through which light from the source is passed, an interference filter having a substantially flat face and a light radiation absorption peak at a wavelength which facilitates detection of the specified gas, a shaft to which the filter is by means of arms secured for rotation so that a perpendicular to the flat face of the filter is at an angle to the axis of the rotation and light detector means responsive to light from the source which has passed through the region and the filter, for detecting predetermined light amplitude variations, wherein light from the source is arranged to be projected towards the filter at an angle offset from the axis of shaft rotation whereby a filter pass band which includes the said wavelength is scanned consequent upon rotation of the filter, thereby to produce amplitude variations of light in the presence within the region of the specified gas, whereby detection of the specified gas by the detector means is facilitated.

2. 发明授权

US4319147A Monitoring apparatus 失效
标题翻译：监控装置
公开(公告)号：US4319147A
公开(公告)日：1982-03-09
申请号：US112831
申请日：1980-01-17
申请人： James E. Carpenter , Brian A. Goody
发明人： James E. Carpenter , Brian A. Goody
IPC分类号： G01R19/165 , H03K19/007
CPC分类号： G01R19/165
摘要： Monitoring apparatus for producing an output in response to a predetermined condition comprising bistable means (4) having a set input, a reset input and an output; trigger means (2, 6) for applying a first train of pulses (.phi..sub.1) to one of the inputs of the bistable means and for applying a second train of pulses of the same frequency as and different phase to the first train of pulses to the other input of the bistable means in response to a predetermined condition: and an output device (8) responsive to oscillation of the bistable means between its stable states.
摘要翻译：用于响应于包括具有设定输入的双稳态装置（4）的预定条件产生输出的监视装置，复位输入和输出; 触发装置（2,6），用于将第一脉冲序列（phi 1）施加到双稳态装置的输入之一，并且用于向第一脉冲串施加与第一脉冲串相同频率和不同相位的第二脉冲串，响应于预定条件的双稳态装置的另一个输入;以及响应双稳态装置在其稳定状态之间的振荡的输出装置（8）。

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