Invention Grant
- Patent Title: Capacitive static and dynamic sensor
- Patent Title (中): 电容静态和动态传感器
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Application No.: US14242343Application Date: 2014-04-01
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Publication No.: US09534973B2Publication Date: 2017-01-03
- Inventor: James Joseph McTighe
- Applicant: ROSEMOUNT AEROSPACE, INC.
- Applicant Address: US MN Burnsville
- Assignee: ROSEMOUNT AEROSPACE, INC.
- Current Assignee: ROSEMOUNT AEROSPACE, INC.
- Current Assignee Address: US MN Burnsville
- Agency: Snell & Wilmer LLP
- Main IPC: G01L9/12
- IPC: G01L9/12 ; G01L9/00 ; G01L19/08

Abstract:
A capacitive pressure sensor may be configured to transduce both a dynamic pressure and a static pressure using a single diaphragm. A capacitive pressure sensor may comprise a dynamic excitation signal module in parallel with a static excitation signal module, a summing amplifier module in connection with both the dynamic excitation module and the static excitation module, a dynamic charge amplifier stage in a parallel with a static charge amplifier stage, and a capacitive sensor connected to an output of the summing amplifier module, as well as an input of the dynamic charge amplifier stage, and an input of the static charge amplifier stage. Further, a dynamic excitation signal may be provided by the dynamic excitation signal module as a constant DC voltage signal, and a static excitation signal may be provided by the static excitation signal module as an AC voltage signal.
Public/Granted literature
- US20150276530A1 CAPACITIVE STATIC AND DYNAMIC SENSOR Public/Granted day:2015-10-01
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