公开(公告)号：US20160375691A1

公开(公告)日：2016-12-29

申请号：US15230010

申请日：2016-08-05

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Andrew L. Van Brocklin ,  Paul A. Liebert ,  Adam L. Ghozeil ,  Scott A. Linn

IPC: B41J2/175

CPC classification number: B41J2/17566 ,  B41J2/0451 ,  B41J2/04555 ,  B41J2/0458 ,  B41J2/125 ,  B41J2/14153 ,  B41J2002/17579

Abstract: In an embodiment, a fluid level sensor includes a sensor plate and a current source. The fluid level sensor also includes an algorithm to bias the current source such that current applied to the sensor plate induces a maximum difference in response voltage between a dry sensor plate condition and a wet sensor plate condition.

Abstract translation: 在一个实施例中，液位传感器包括传感器板和电流源。 液位传感器还包括用于偏置电流源的算法，使得施加到传感器板的电流在干传感器板条件和湿传感器板状况之间引起响应电压的最大差异。

公开(公告)号：US09925787B2

公开(公告)日：2018-03-27

申请号：US15230010

申请日：2016-08-05

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Andrew L. Van Brocklin ,  Paul A. Liebert ,  Adam L. Ghozeil ,  Scott A. Linn

IPC: B41J2/195 ,  B41J2/175 ,  B41J2/045 ,  B41J2/14 ,  B41J2/125

CPC classification number: B41J2/17566 ,  B41J2/0451 ,  B41J2/04555 ,  B41J2/0458 ,  B41J2/125 ,  B41J2/14153 ,  B41J2002/17579

Abstract: In an embodiment, a fluid level sensor includes a sensor plate and a current source. The fluid level sensor also includes an algorithm to bias the current source such that current applied to the sensor plate induces a maximum difference in response voltage between a dry sensor plate condition and a wet sensor plate condition.

公开(公告)号：US10308035B2

公开(公告)日：2019-06-04

申请号：US15891565

申请日：2018-02-08

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Andrew L. Van Brocklin ,  Paul A. Liebert ,  Adam L. Ghozeil ,  Scott A. Linn

IPC: B41J2/14 ,  B41J2/045 ,  B41J2/125 ,  B41J2/175

Abstract: In an embodiment, a fluid level sensor includes a sensor plate and a current source. The fluid level sensor also includes an algorithm to bias the current source such that current applied to the sensor plate induces a maximum difference in response voltage between a dry sensor plate condition and a wet sensor plate condition.

公开(公告)号：US20180162137A1

公开(公告)日：2018-06-14

申请号：US15891565

申请日：2018-02-08

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Andrew L. Van Brocklin ,  Paul A. Liebert ,  Adam L. Ghozeil ,  Scott A. Linn

IPC: B41J2/175 ,  B41J2/125 ,  B41J2/14 ,  B41J2/045

CPC classification number: B41J2/17566 ,  B41J2/0451 ,  B41J2/04555 ,  B41J2/0458 ,  B41J2/125 ,  B41J2/14153 ,  B41J2002/17579

Abstract: In an embodiment, a fluid level sensor includes a sensor plate and a current source. The fluid level sensor also includes an algorithm to bias the current source such that current applied to the sensor plate induces a maximum difference in response voltage between a dry sensor plate condition and a wet sensor plate condition.