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In the flow generator in order to supply manner
专利权人:
发明人:
申请号:
JP2008103795
公开号:
JP5553967B2
申请日:
2008.04.11
申请国别(地区):
JP
年份:
2014
代理人:
摘要:
Systems and methods for detecting developing faults in a flow generator or ventilator during therapeutic use thereof are provided. The motor current may be measured to estimate the torque input by the motor, while the output torque from the impeller may be determined (e.g., as inferred from the motor control system model and/or by consulting a lookup table). One or more transducers may collect data useful in determining the input and output torques. A difference between the input (to the motor) torque and the output (from the impeller) torque may be calculated. The difference, optionally filtered using a low-pass filter to reduce noise, may be compared to a predetermined threshold once or over a period of time to detect gross failures and/or developing failures. Once a failure or developing failure is detected, a user may be alerted and/or the flow generator may be placed into a &ldquoservice required&rdquo mode.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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