Non-contact and continuous sensing device and method for flowmeter in which signal density in a space between a projector and a working member changes when the working member passes

• Main Authors: WU, WEN-SI, LIN, ZHI-XUN, YANG, CHONG-MING, ZENG, MEI-LING, LI, ZONG-WEI, SU, ZHENG-XIAN
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2017
• Subjects: MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; TESTING

The present invention discloses a non-contact and continuous sensing device of a flowmeter and a method. An internal movable member of the flowmeter is connected to a working member. The movable member is driven by fluids to cause the working member to displace. A projector is mounted above the working member for projecting a signal to the working member. The working member is divided into at least two areas facing the projector, and at least one area reflects the continuous signal projected thereto, so that signal density in a space between the projector and the working member changes when the working member passes, and projection power of the projector is affected. As such, a movement state of the working member is sensed and a flow condition of the fluids is acquired.