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公开(公告)号：CA1173129A
公开(公告)日：1984-08-21
申请号：CA354866
申请日：1980-06-26
Applicant: ELECTRONICS CORP AMERICA
Inventor： WEINER NATHAN K , WEYMAN PETER J , KETCHUM DAVID D
Abstract: Method and apparatus for evaluating the quality of a flame in response to outputs from a flame sensor. The present invention includes a method and apparatus in which output pulses from a flame sensor are continuously counted. The number of pulses is accumulated over a time interval of a predetermined length and compared with a threshold value. The accumulated total is continuously updated to reflect the pulses received over the previous time interval to effectively provide a moving time-window of a fixed length over which pulses from the flame sensor are accumulated. Other additional checks may be made to ascertain that a flame is present, including the time over which no pulses are detected and a long-term average of the number of pulses. A preferred embodiment disclosed in which numerous self-checking features are incorporated, and which includes a novel bar-graph type of display for displaying flame quality and diagnostic information.
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公开(公告)号：FR2459943A1
公开(公告)日：1981-01-16
申请号：FR8014268
申请日：1980-06-26
Applicant: ELECTRONICS CORP AMERICA
Inventor： WEINER NATHAN K , WEYMAN PETER J , KETCHUM DAVID D
Abstract: Method and apparatus for evaluating the quality of a flame in response to outputs from a flame sensor. The present invention includes a method and apparatus in which output pulses from a flame sensor are continuously counted.The number of pulses is accumulated over a time interval of a predetermined length and compared with a threshold value. The accumulated total is continuously updated to reflect the pulses received over the previous time interval to effectively provide a moving time-window of a fixed length over which pulses from the flame sensor are accumulated. Other additional checks may be made to ascertain that a flame is present, including the time over which no pulses are detected and a long-term average of the number of pulses. A preferred embodiment disclosed in which numerous self-checking features are incorporated, and which includes a novel bar-graph type of display for displaying flame quality and diagnostic information.
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公开(公告)号：DE3024013A1
公开(公告)日：1981-01-08
申请号：DE3024013
申请日：1980-06-26
Applicant: ELECTRONICS CORP AMERICA
Inventor： WEINER NATHAN K , WEYMAN PETER J , KETCHUM DAVID D
Abstract: Method and apparatus for evaluating the quality of a flame in response to outputs from a flame sensor. The present invention includes a method and apparatus in which output pulses from a flame sensor are continuously counted.The number of pulses is accumulated over a time interval of a predetermined length and compared with a threshold value. The accumulated total is continuously updated to reflect the pulses received over the previous time interval to effectively provide a moving time-window of a fixed length over which pulses from the flame sensor are accumulated. Other additional checks may be made to ascertain that a flame is present, including the time over which no pulses are detected and a long-term average of the number of pulses. A preferred embodiment disclosed in which numerous self-checking features are incorporated, and which includes a novel bar-graph type of display for displaying flame quality and diagnostic information.
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