HAJISHAH, ABRAHAM,KING, DAVID A.,CLAUS, MICHAEL J.
申请号：
CA2669651
公开号：
CA2669651C
申请日:
2007.11.06
申请国别(地区):
CA
年份:
2016
代理人:
摘要：
A method and system for calibrating an analog sensor used in a digital measurement system is provided. The design comprises generating a precise pressure value set at multiple calibration points and supplying said precise pressure value set to an uncalibrated pressure sensor (403), detecting sensor changes for the uncalibrated pressure sensor (403) based on each precise pressure value generated, polling an actual pressure reading associated with a sensor change for the uncalibrated pressure sensor (403) for each calibration point, and establishing a mathematical relationship between measured value readings and actual pressure for the uncalibrated sensor. Establishing the mathematical relationship converts the uncalibrated sensor to a newly calibrated sensor. A known good sensor (404) may be employed to enhance calibration reliability. The method and system for calibrating an analog sensor are applied to pressure transducers in phacoemulsification machines that are used in eye surgery of cataracts.
