A Mems Body Fluid Flow Sensor

2001 ◽  
pp. 167-168 ◽  
Author(s):  
Ellis Meng ◽  
Sascha Gassmann ◽  
Yu-Chong Tai
Keyword(s):  
Fluid Flow ◽  
Body Fluid ◽  
Flow Sensor

A MEMS flow velocity sensor with low kinetic energy dissipation rate

Sensor Review ◽  
2017 ◽  
Vol 37 (3) ◽  
pp. 247-256 ◽  
Author(s):  
Bian Tian ◽  
Huafeng Li ◽  
Ning Yang ◽  
Yulong Zhao ◽  
Pei Chen ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Energy Dissipation ◽  
Kinetic Energy ◽  
Flow Velocity ◽  
Dissipation Rate ◽  
Energy Dissipation Rate ◽  
Flow Sensor ◽  
Ocean Turbulence ◽  
Content Type ◽  
Turbulence Flow

Purpose It is significant to know the real-time indexes about the turbulence flow of the ocean system, which has a deep influence on ocean productivity, distribution of the ocean populations and transmission of the ocean energy, especially the measurement of turbulence flow velocity. So, it is particularly urgent to provide a high-sensitivity, low-cost and reliable fluid flow sensor for industry and consumer product application. This paper aims to design a micro fluid flow sensor with a cross beam membrane structure. The designed sensor can detect the fluid flow velocity and has a low kinetic energy dissipation rate. Design/methodology/approach In this paper, a micro fluid flow sensor with a cross beam membrane structure is designed to measure the ocean turbulence flow velocity. The design, simulation, fabrication and measurement of the designed sensor are discussed. By testing the simply packaged sensor in the fluid flow and analyzing the experiments data, the results show that the designed sensor has favorable performance. Findings The paper describes the tests of the designed sensor, and the experimental results show that the designed sensor can measure the fluid flow velocity and has a sensitivity of 11.12 mV/V/(m/s)2 and a low kinetic energy dissipation rate in the range of 10-6-10-4 W/kg. Originality/value This paper provides a micro-electro-mechanical systems fluid flow sensor used to measure ocean turbulence flow velocity.

A Fluid Flow Sensor Based on Fiber Bragg Gratings with Induction Heating

2021 ◽  
Author(s):  
A. V. Umnova ◽  
A. S. Aleinik ◽  
V. E. Strigalev ◽  
V. A. Novikova ◽  
A. N. Ashirov
Keyword(s):  
Fluid Flow ◽  
Induction Heating ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Flow Sensor

Corrosion Behavior of Engineering Materials in Flow Field

2014 ◽  
Vol 922 ◽  
pp. 722-727 ◽  
Author(s):  
Yuki Soya ◽  
Shoichiro Yoshihara ◽  
Yuki Ohmura ◽  
Bryan J. Mac Donald ◽  
Emmet Galvin
Keyword(s):  
Surface Roughness ◽  
Fluid Flow ◽  
Mass Loss ◽  
Corrosion Behavior ◽  
Flow Rate ◽  
Body Fluid ◽  
Test Bench ◽  
Fluid Flow Rate ◽  
Magnesium Alloy Az31 ◽  
Diamond Paste

In this study, the effect of fluid flow rate, surface roughness and strain level on the corrosion behavior of magnesium alloy AZ31 was characterized in a custom test bench. Specimens were prepared by mechanical polishing and subject to flow in a simulated body fluid at 37°C for 24 hrs. Compared to a specimen pre-strain of 0%, mass loss was shown to increase by approximately 6% with a specimen pre-strain of 10%. Similarly, mass loss increased by approximately 13% when the fluid flow rate was increased from 250ml/min to 500ml/min. Surface roughness had a significant influence on corrosion behavior. Compared to a specimen polished with a 1 µm diamond paste, the mass loss for a specimen polished with #600 sandpaper was 28% greater.

Dual-Element, Solid-State Fluid Flow Sensor

1980 ◽  
Author(s):  
L. A. Rehn ◽  
R. W. Tarpley ◽  
K. C. Wiemer ◽  
K. M. Durham
Keyword(s):  
Fluid Flow ◽  
Solid State ◽  
Flow Sensor

scholarly journals Flow Rate Control by Means of Flow Meter and PLC Controller

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6153
Author(s):  
Sylwia Włodarczak ◽  
Marek Ochowiak ◽  
Michał Doligalski ◽  
Bartosz Kwapisz ◽  
Andżelika Krupińska ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Flow Rate ◽  
Programmable Logic Controller ◽  
Flow Sensor ◽  
Programmable Logic ◽  
Flow Meter ◽  
Polyamide 12 ◽  
New Construction ◽  
Flow Rate Control ◽  
Accurate Reading

This paper presents a design of a flow meter based on a programmable logic controller (PLC). The new construction of a flow meter controlled by PLC increases the possibilities for the control and automation of fluid flow. Additionally, the didactic potential of the use of simple automation in the form of a programmable logic controller was considered. A device enabling the measurement of fluid flow rate based on a PLC controller was designed, constructed, and tested. The choice of device was the Gems Sensors FT-210 series turbine flow sensor, which is characterized by low purchase and maintenance costs. The properties and the chemical resistance of polyamide-12, the material the sensor is made of, make it possible to test the flow of various types of fluids. As part of the work, an algorithm and a program controlling the device was developed based on the APB Soft software, enabling the accurate reading of the number of impulses sent by the turbine flow sensor. The results of the designed flow meter were compared with the results obtained for the Krohne VA-40 high accuracy rotameter.

A MEMS SOI-based piezoresistive fluid flow sensor

2018 ◽  
Vol 89 (2) ◽  
pp. 025001 ◽  
Author(s):  
B. Tian ◽  
H. F. Li ◽  
H. Yang ◽  
D. L. Song ◽  
X. W. Bai ◽  
...  
Keyword(s):  
Fluid Flow ◽  
Flow Sensor

Electro Thermal Modeling of the Micro Flow Sensor With Feedback Control Circuit Using SPICE

2007 ◽  
Author(s):  
Shoji Kamiunten ◽  
Hidetomo Nagayo ◽  
Masahiro Motosuke ◽  
Shinji Honami
Keyword(s):  
Fluid Flow ◽  
Integrated Circuit ◽  
Thermal Modeling ◽  
Three Dimensional ◽  
Electric Circuit ◽  
General Purpose ◽  
Flow Sensor ◽  
Spanwise Direction ◽  
Two Dimensional ◽  
Micro Flow

This paper reports an efficient electro-thermal modeling technique for the Micro Flow Sensor (MFS) having an ensured thermal insulation structure with a thin silicon nitride membrane. Both the thermal fluid flow around two-heater MFS and the electric circuit were modeled together using a commercial general-purpose circuit simulator based on SPICE (Simulation Program with Integrated Circuit Emphasis). Two-dimensional laminar Poiseuille channel flow was assumed as the flow field in the model. Remarkable features of this technique are as follows: a partial three-dimensional lumped thermal network model involved in a two dimensional one, single segment for spanwise direction, and the forced convective heat transfer calculated by energy balance at each node in the fluid flow. The simulation and measurement results on the sensor characteristics were in good agreement.

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