Invention Grant
US08490496B2 Multi range pressure sensor apparatus and method utilizing a single sense die and multiple signal paths
有权
多范围压力传感器装置和方法利用单个感测管芯和多个信号路径
- Patent Title: Multi range pressure sensor apparatus and method utilizing a single sense die and multiple signal paths
- Patent Title (中): 多范围压力传感器装置和方法利用单个感测管芯和多个信号路径
-
Application No.: US13069127Application Date: 2011-03-22
-
Publication No.: US08490496B2Publication Date: 2013-07-23
- Inventor: Ian Bentley
- Applicant: Ian Bentley
- Applicant Address: US NJ Morristown
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morristown
- Agency: Seager Tufte & Wickhem LLC.
- Main IPC: G01L9/00
- IPC: G01L9/00

Abstract:
A multi-range pressure sensor apparatus and method that provide multiple signal paths for detecting a broad range of pressures with a high accuracy. A pressure transducer can be configured to include the use of a pressure sense die with piezoresistive elements integrated into the sensor die and in a Wheatstone bridge configuration. A sensed output signal from the sense die can be transferred to one or more amplifier circuits. A programmable compensation circuit can be utilized to multiplex different amplified output signals from each of the amplifier circuits and to provide a digital output. A memory associated with the programmable compensation circuit provides separate compensations, which are stored for each of the different signal paths and removes errors due to amplifier gain and offset.
Public/Granted literature
- US20110179879A1 MULTI RANGE PRESSURE SENSOR APPARATUS AND METHOD UTILIZING A SINGLE SENSE DIE AND MULTIPLE SIGNAL PATHS Public/Granted day:2011-07-28
Information query