公开(公告)号：US20160298991A1

公开(公告)日：2016-10-13

申请号：US14685046

申请日：2015-04-13

申请人： FUNAI ELECTRIC CO., LTD.

发明人： Steve BERGSTEDT

IPC分类号： G01F1/69

CPC分类号： G01F1/6845 ,  G01F1/688 ,  G01F1/696

摘要： A flowmeter including a fluid flow channel formed on a substrate that directs a fluid from an upstream position to a downstream position. A heater is disposed between the upstream and downstream positions. A first temperature sensor detects temperature of the fluid at the upstream position and a second temperature sensor detects temperature of the fluid at the downstream position. At least one third temperature sensor detects temperature of the heater. A controller maintains the heater at a predetermined temperature based on the temperature sensed by the at least one third temperature sensor. A flow measurement output circuit generates a gain stage output of a temperature differential between the temperature detected by the first temperature sensor and the temperature detected by the second temperature sensor.

摘要翻译： 一种流量计，其包括形成在基板上的流体流动通道，其将流体从上游位置引导到下游位置。 加热器设置在上游和下游位置之间。 第一温度传感器检测在上游位置的流体的温度，第二温度传感器检测下游位置处的流体的温度。 至少三分之一温度传感器检测加热器的温度。 控制器基于由至少一个第三温度传感器感测的温度将加热器维持在预定温度。 流量测量输出电路产生由第一温度传感器检测到的温度与由第二温度传感器检测的温度之间的温度差的增益级输出。

公开(公告)号：US20170120583A1

公开(公告)日：2017-05-04

申请号：US14925738

申请日：2015-10-28

申请人： FUNAI ELECTRIC CO., LTD.

发明人： John G. EDELEN ,  Steve BERGSTEDT ,  Hideo OI

IPC分类号： B41J2/045

CPC分类号： B41J2/04541 ,  B41J2/0451 ,  B41J2/0455 ,  B41J2/04561 ,  B41J2/04565 ,  B41J2/0458

摘要： A fluid printhead including a plurality of heater elements that are driven to nucleate bubbles in fluid so that the fluid is ejected from the printhead in the form of drops, a plurality of drive elements, each drive element selectively driving a corresponding one of the plurality of heater elements in accordance with a printer controller, and a drop detection system that includes a plurality of drop detection cells, each drop detection cell detecting a change in electrical resistance of a corresponding one of the plurality of heater elements that occurs upon drop formation.

公开(公告)号：US20160297198A1

公开(公告)日：2016-10-13

申请号：US14683699

申请日：2015-04-10

申请人： FUNAI ELECTRIC CO., LTD.

发明人： John Glenn EDELEN ,  Steve BERGSTEDT

IPC分类号： B41J2/14

CPC分类号： B41J2/1433 ,  B41J2/04541 ,  B41J2/04573 ,  B41J2/0458 ,  B41J2/14072 ,  B41J2/14153 ,  B41J2002/14491

摘要： A fluid printhead including at least one fluid ejection element. The fluid ejection element includes a fluid chamber, a throat portion through which fluid is provided to the fluid chamber, and a heater element disposed within the fluid chamber. The fluid ejection element also includes a printhead condition detection system. The printhead condition detection system includes a first electrode at least a portion of which is disposed within the fluid chamber, the first electrode configured to receive a step voltage, a second electrode disposed within the throat portion, and a sense circuit electrically connected to the second electrode that generates an output based on the application of the step voltage to the first electrode as an indication of printhead condition.

摘要翻译： 流体打印头，包括至少一个流体喷射元件。 流体喷射元件包括流体室，流体被提供到流体室的喉部和设置在流体室内的加热器元件。 流体喷射元件还包括打印头状况检测系统。 打印头状态检测系统包括第一电极，其至少一部分设置在流体室内，第一电极被配置为接收阶跃电压，设置在喉部内的第二电极以及电连接到第二电极的感测电路 电极，其基于对第一电极施加阶梯电压产生输出，作为打印头状况的指示。

公开(公告)号：US20180345667A1

公开(公告)日：2018-12-06

申请号：US16101582

申请日：2018-08-13

申请人： FUNAI ELECTRIC CO., LTD.

发明人： John Glenn EDELEN ,  Steve BERGSTEDT

IPC分类号： B41J2/14 ,  B41J2/045

摘要： A fluid printhead including at least one fluid ejection element. The fluid ejection element includes a fluid chamber, a throat portion through which fluid is provided to the fluid chamber, and a heater element disposed within the fluid chamber. The fluid ejection element also includes a printhead condition detection system. The printhead condition detection system includes a first electrode at least a portion of which is disposed within the fluid chamber, the first electrode configured to receive a step voltage, a second electrode disposed within the throat portion, and a sense circuit electrically connected to the second electrode that generates an output based on the application of the step voltage to the first electrode as an indication of printhead condition.

公开(公告)号：US20170028724A1

公开(公告)日：2017-02-02

申请号：US15292735

申请日：2016-10-13

申请人： FUNAI ELECTRIC CO., LTD.

发明人： John Glenn EDELEN ,  Steve BERGSTEDT

IPC分类号： B41J2/14

CPC分类号： B41J2/1433 ,  B41J2/04541 ,  B41J2/04573 ,  B41J2/0458 ,  B41J2/14072 ,  B41J2/14153 ,  B41J2002/14491

摘要： A fluid printhead including at least one fluid ejection element. The fluid ejection element includes a fluid chamber, a throat portion through which fluid is provided to the fluid chamber, and a heater element disposed within the fluid chamber. The fluid ejection element also includes a printhead condition detection system. The printhead condition detection system includes a first electrode at least a portion of which is disposed within the fluid chamber, the first electrode configured to receive a step voltage, a second electrode disposed within the throat portion, and a sense circuit electrically connected to the second electrode that generates an output based on the application of the step voltage to the first electrode as an indication of printhead condition.

摘要翻译： 流体打印头，包括至少一个流体喷射元件。 流体喷射元件包括流体室，流体被提供到流体室的喉部和设置在流体室内的加热器元件。 流体喷射元件还包括打印头状况检测系统。 打印头状态检测系统包括第一电极，其至少一部分设置在流体室内，第一电极被配置为接收阶跃电压，设置在喉部内的第二电极以及电连接到第二电极的感测电路 电极，其基于对第一电极施加阶梯电压产生输出，作为打印头状况的指示。