公开(公告)号：US20070017638A1

公开(公告)日：2007-01-25

申请号：US11493278

申请日：2006-07-25

Applicant: Andre Moebius

Inventor： Andre Moebius

IPC: G05G15/00

CPC classification number: H01L24/743 ,  B05C5/02 ,  B05C11/101 ,  B05C11/1013

Abstract: A device for applying adhesive to a substrate from a liquid container containing the adhesive contains at least one pressure tank that can be temporarily connected to the pressure tank by means of a changeover valve in order to apply a pressure pulse to the liquid container, and a control unit for controlling the changeover valve and regulating the pressure prevailing in the pressure tank. In accordance with the invention, the device is equipped with a sensor the output signal of which indicates the liquid level of the liquid container. The sensor comprises a sound transducer, a sound transformer and an electronic circuit for operation of the sound transducer and for analyzing the signal delivered by the sound transformer. The sensor measures the frequency of the alternating electrical signal applied to the sound transducer with which a standing sound wave occurs in the liquid container. The control unit adjusts either the level of the pressure prevailing in the pressure tank or the length of the pressure pulse subject to the output signal from the sensor.

Abstract translation: 用于将粘合剂从含有粘合剂的液体容器施加到基材上的装置包含至少一个压力罐，该压力罐可通过转换阀临时连接到压力罐，以便向液体容器施加压力脉冲， 控制单元，用于控制切换阀并调节压力罐中的压力。 根据本发明，该装置配备有其输出信号表示液体容器的液面的传感器。 该传感器包括声音换能器，声音变压器和用于操作声音传感器并用于分析由声音变压器传递的信号的电子电路。 传感器测量施加到在液体容器中发生站立声波的声换能器的交流电信号的频率。 控制单元调节压力罐中压力的水平或受到来自传感器的输出信号的压力脉冲的长度。