Abstract
The article proposes a device for measuring parameters of liquid flows (volume and velocity) (FOSLFP). A physico-mathematical model of optical signal conversion in a fiber-optic flux transducer of the proposed sensor is developed, in which the perceiving element is a truncated cylinder mounted on the inner surface of the bellows, experiencing angular bending during measurements. The conversion of optical signals is carried out using a two-way mirror plate mounted on the outer surface of the bellows in an open fiber optical channel. A circuit-analytical model of a new variant of a differential circuit for converting optical signals to a FOSLFP was developed, in accordance with which a metrological model of the sensor was developed to determine the possible sources of measurement errors. The nominal and real functions of the FOSLFP transformation were derived, the additive and multiplicative components of the errors of the two measuring channels of the sensor and the ways to reduce them were determined.
Highlights
The safety of operation of technical systems and objects created in high-tech branches of science and technology, to which the decree of the President of the Russian Federation dated 07.07.2011 referred as rocket and space and aviation industries, and nuclear power and many other industries, today largely depends on the accuracy of measurements of fluid flows [1]
According to the supply optical fiber of the LFO, the light flux is transferred to the measuring zone of the fiber optic converter FOC, where its intensity Ф0 changes under the action of the measured physical quantity α
On the example of the metrological analysis of fiber-optic sensor of liquid flow parameters (FOSLFP) it was shown that the differential transformation of optical signals with identical manufacturing of two measuring channels allows to improve the metrological characteristics of FOSLFP 2-3 times
Summary
The safety of operation of technical systems and objects created in high-tech branches of science and technology, to which the decree of the President of the Russian Federation dated 07.07.2011 referred as rocket and space and aviation industries, and nuclear power and many other industries, today largely depends on the accuracy of measurements of fluid flows [1].The problem of creating and improving methods and means of measuring the parameters of substances with specific properties (aggressiveness, unsteadiness of physical and chemical characteristics, high viscosity) and functioning in various difficult operating conditions, despite some progress, remains very relevant [2]. The light fluxes Ф01 and Ф02 from the RS according to the LFO1 and LFO2 are sent to the measuring zone to the first and second reflecting surfaces of the plate, respectively.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
