Journal ArticleDOI
Simulation and Research of a Thermal Type Liquid Flow Sensor
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In this paper, a flow sensor for liquids, based on the principle of fluid-structure heat transfer, is presented, where the heater and thermistor are integrated and wrapped together as a detector and heat source, allowing heat exchange between the sensor and the fluid.Abstract:
A flow sensor for liquids, based on the principle of fluid-structure heat transfer is presented. The heater and thermistor are integrated and wrapped together as a detector and heat source, allowing heat exchange between the sensor and the fluid. Through numerical simulation, the temperature distribution of the sensor was investigated, under conditions of various flow velocities. The process of turbulent heat transfer in the flow pipe was simulated, the temperature distribution in the sensor was analyzed and compared under different temperature and velocity of the fluid, and the corresponding measuring ranges were determined. The flow detection circuit is designed and the results of water flow velocity tests in the range of (0.01–1)m/s are presented.read more
Citations
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Journal ArticleDOI
Analysis and optimization of a thermal sensor system for measuring water flow
TL;DR: In this paper, a simple thermal sensor system was designed for measuring water flow in the water mains using the heat loss principle with a NTC thick film segmented thermistor as a self-heating sensor.
Journal ArticleDOI
Heat Loss Flowmeter for Water Based on Thick Film Thermistors in Power Save Regime
TL;DR: In this article, a heat loss flowmeter for water consists of the small plastic housing and two NTC thick film segmented thermistors with reduced dimensions placed along the main axis, which are printed using the modified nickel-manganese paste and sintered in air at 850 °C / 10 min in the conveyor furnace.
Proceedings ArticleDOI
Design of microcalorimetric mass flowmeter based on constant power
TL;DR: In this paper , a design method of a thermal mass flowmeter based on constant power is proposed for measuring the flow of a small amount of fluid, where the principle is to arrange two temperature sensors in the pipeline to heat the speed-measuring temperature sensor.
References
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Journal ArticleDOI
Thermal flow sensor for liquids and gases based on combinations of two principles
TL;DR: In this paper, a new type of a flow sensor is presented which is based on a thermal principle and the combination of two detecting methods results both in a considerable increase in measuring range (0.1 to 150 mm/s) and in a shorter reaction time of less than 2 ms.
Journal ArticleDOI
A 2D thermal flow sensor with sub-mW power consumption
TL;DR: In this paper, a low-power 2D flow sensor with high temperature resolution and low power consumption was used to estimate the air flow velocity of a flying object at a power of 1.77mWrms.
Journal ArticleDOI
Study of the sensitivity of a thermal flow sensor
TL;DR: In this paper, a simple numerical model for analyzing heat transfer phenomena in the thermal flow sensor is presented, based on the results from the validated model, a correlation that predicts the sensitivity of thermal flow sensors is presented.
Journal ArticleDOI
The temperature compensation of a thermal flow sensor by changing the slope and the ratio of resistances
TL;DR: In this paper, two compensation methods that maintain the gap constant in response to the temperature change of fluid are proposed, i.e., the gap can be constant; the error of temperature can be solved.
Journal ArticleDOI
Study on the steady-state characteristics of the sensor tube of a thermal mass flow meter
TL;DR: In this article, a simple numerical model for steady-state heat transfer phenomena occurring in the sensor tube of a thermal mass flow meter (TMFM) is presented, and extensive experimental investigations are performed.
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