公开(公告)号：US20160375683A1

公开(公告)日：2016-12-29

申请号：US15188699

申请日：2016-06-21

Applicant: OCE-TECHNOLOGIES B.V.

Inventor： Hylke VEENSTRA ,  Theo HUMMEL ,  Amol KHALATE ,  Cor VENNER ,  Marko MIHAILOVIC

IPC: B41J2/045 ,  B41J2/14

CPC classification number: B41J2/04551 ,  B41J2/04571 ,  B41J2/04573 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/04596 ,  B41J2/14008 ,  B41J2/14201 ,  B41J2002/14354 ,  B41J2002/1437

Abstract: A liquid jetting device comprising a plurality of ejection units each of which is arranged to eject a droplet of a liquid and comprises a nozzle, a liquid duct connected to the nozzle and an electro-mechanical transducer arranged to create an acoustic pressure wave in the liquid in the duct, the device further comprising an electronic control system arranged to receive a pressure signal from at least one of the transducers and to generate a transducer control signal on the basis of the received pressure signal and to control the transducers of said plurality of ejection units to operate in a mode of operation selected from a variety of different modes of operation, wherein the control system is arranged to detect an acoustic property of the liquid of the basis of the received pressure signal and to select the mode of operation in accordance with the detected property, the control system being arranged to deliver transducer control signals to the transducers, which control signals are derived from a common basic waveform that is specified by mode parameters, each mode of operation of the device is specified by a different set of mode parameters, the waveform comprises a jetting pulse and quench pulse following on the jetting pulse, and one of the mode parameters is a time delay between the start of the jetting pulse and the start of the quench pulse.

Abstract translation: 一种液体喷射装置，包括多个喷射单元，每个喷射单元布置成喷射液滴，并且包括喷嘴，连接到喷嘴的液体管道和布置成在液体中产生声压波的机电换能器 在所述管道中，所述装置还包括电子控制系统，其布置成从所述至少一个所述换能器接收压力信号，并且基于所接收的压力信号产生换能器控制信号，并且控制所述多个喷射的换能器 单元以从各种不同操作模式中选择的操作模式操作，其中所述控制系统被布置成检测所接收的压力信号的基础的液体的声学特性，并根据所述操作模式选择所述操作模式 检测到的属性，控制系统被布置成将换能器控制信号传送到换能器，该控制信号是d 从由模式参数指定的通用基本波形中发现，器件的每种操作模式由不同的模式参数集合指定，波形包括在喷射脉冲之后的喷射脉冲和骤冷脉冲，并且其中一种模式 参数是喷射脉冲开始和淬灭脉冲开始之间的时间延迟。