Alastair Edwin McAuley,Yi-Cheng Sun,Jonathan David Harwood
申请号：
US13517405
公开号：
US09440042B2
申请日:
2010.12.23
申请国别(地区):
US
年份:
2016
代理人:
摘要：
The invention relates to a method of determining water level in a humidifier chamber that is part of a humidified gases delivery apparatus and system. The method comprising the steps of delivering power to a heater plate, varying the power delivered to the heater plate, measuring the rate of change of temperature and determining the level of water based on the heating characteristics of the volume of water within the chamber, in particular determining the level of water within the chamber based on the rate of change of temperature and the supplied power.
