公开(公告)号：US4424703A

公开(公告)日：1984-01-10

申请号：US360434

申请日：1982-03-22

申请人： Hans Winter ,  Eduard Mair ,  Holger Schoenewolf

发明人： Hans Winter ,  Eduard Mair ,  Holger Schoenewolf

IPC分类号： G01N29/02 ,  G01N15/06 ,  G01N29/024 ,  G03G15/20

CPC分类号： G01N29/024 ,  G03G15/2096 ,  G01N2291/02809 ,  Y10T137/2509

摘要： A device for monitoring the concentration of an air-vapor mixture in the fixing station of a non-mechanical printing or copying device has an ultrasonic transducer for generating and receiving an ultrasonic signal in the fixing station, the transit time of the ultrasonic signal between transmission and reception indicating the air-vapor mixture concentration in the station. The transit times are subdivided into at least three ranges of which the mean range or mean ranges identify a desired concentration. An evaluator circuit post-connected to the ultrasonic transducer forms signals corresponding to the ranges, the signals being entered in one of at least three status memories in accordance with their significance. The status memory which is filled first emits an output signal for triggering a corresponding reaction such as increasing the vapor density in the station, and cancels the contents of all of the status memories. False reactions as a result of brief and topically limited fluctuations from a mean concentration are thus largely avoided.

摘要翻译： 用于监测非机械打印或复印装置的定影站中的空气 - 蒸气混合物的浓度的装置具有用于在定影台中产生和接收超声波信号的超声波换能器，超声信号在传输之间的传播时间 以及指示车站中的空气 - 蒸汽混合物浓度的接收。 运输时间被细分为至少三个范围，平均范围或平均范围标识所需的浓度。 后连接到超声换能器的评估器电路根据它们的重要性形成对应于这些范围的信号，信号被输入至少三个状态存储器之一中。 首先填充的状态存储器发出用于触发相应的反应的输出信号，例如增加站内的蒸汽密度，并且取消所有状态存储器的内容。 因此，从平均浓度的短暂和局部有限的波动引起的虚假反应因此被大大地避免。

公开(公告)号：US4424702A

公开(公告)日：1984-01-10

申请号：US360433

申请日：1982-03-22

申请人： Holger Schoenewolf

发明人： Holger Schoenewolf

IPC分类号： G01N29/024 ,  G03G15/20 ,  G01N29/02

CPC分类号： G01N29/024 ,  G03G15/2096

摘要： A device for monitoring the concentration of an air-vapor mixture in the fixing station of a non-mechanical printing or copying device has an ultrasonic transducer for generating and receiving an ultrasonic signal in the fixing station, the transit time of the ultrasonic signal between transmission and reception indicating the air-vapor mixture concentration in the station. The transit times are subdivided into at least three ranges of which the mean range or mean ranges identify a desired concentration. An evaluator circuit post-connected to the ultrasonic transducer forms signals corresponding to the ranges, the signals being entered in one of at least three status memories in accordance with their significance. The status memory which is filled first emits an output signal for triggering a corresponding reaction such as increasing the vapor density in the station, and cancels the contents of all of the status memories. False reactions as a result of brief and topically limited fluctuations from a mean concentration are thus largely avoided.