scholarly journals 3.1.2 Dual Sensor Setup for Thermal Mass Flow Sensor Diagnostics

2012 ◽  
Author(s):  
D. Pape ◽  
K. Hencken
Keyword(s):  
Mass Flow ◽  
Flow Sensor ◽  
Thermal Mass ◽  
Dual Sensor ◽  
Mass Flow Sensor

Development of a Surface Flow Sensor for Measuring Turbulent Drag Force

2019 ◽  
Author(s):  
Il Doh ◽  
Il-Bum Kwon ◽  
Jiho Chang ◽  
Sejong Chun
Keyword(s):  
Wind Tunnel ◽  
Flow Velocity ◽  
Drag Force ◽  
Mass Flow ◽  
Surface Flow ◽  
Flow Sensor ◽  
Constant Current ◽  
Thermal Mass ◽  
Turbulent Drag ◽  
Mass Flow Sensor

Abstract A surface flow sensor is needed if turbulent drag force is to be measured over a vehicle, such as a car, a ship, and an airplane. In case of automobile industry, there are no automobile manufacturers which measure surface flow velocity over a car for wind tunnel testing. Instead, they rely on particle image velocimetry (PIV), pressure sensitive paint (PSP), laser Doppler anemometry (LDA), pitot tubes, and tufts to get information regarding the turbulent drag force. Surface flow sensors have not devised yet. This study aims at developing a surface flow sensor for measuring turbulent drag force over a rigid body in a wind tunnel. Two sensing schemes were designed for the fiber-optic distributed sensor and the thermal mass flow sensor. These concepts are introduced in this paper. As the first attempt, a thermal mass flow sensor has been fabricated. It was flush-mounted on the surface of a test section in the wind tunnel to measure the surface flow velocity. The thermal mass flow sensor was operated by either constant current or constant resistance modes. Resistance ratio was changed as the electric current was increased by the constant current mode, while power ratio was saturated as the resistance was increased by the constant resistance mode. Either the resistance ratio or the power ratio was changed with the flow velocity measured by a Pitot tube, located at the center of test section.

Characteristics of a thermal mass-flow sensor in vacuum systems

1998 ◽  
Vol 69 (1) ◽  
pp. 62-67 ◽  
Author(s):  
Kei Toda ◽  
Yasuko Maeda ◽  
Isao Sanemasa ◽  
Koichi Ishikawa ◽  
Noriyuki Kimura
Keyword(s):  
Mass Flow ◽  
Flow Sensor ◽  
Thermal Mass ◽  
Vacuum Systems ◽  
Mass Flow Sensor

Development of a mass flow sensor based on Low Temperature Cofired Ceramics for analysis of exhaust gas up to 500 °C

2020 ◽  
Author(s):  
Lohrberg Carolin ◽  
Lenz Christian ◽  
Kreher Lisa ◽  
Bechtold Franz ◽  
Carstens Stefan ◽  
...  
Keyword(s):  
Low Temperature ◽  
Mass Flow ◽  
Flow Sensor ◽  
Exhaust Gas ◽  
Cofired Ceramics ◽  
Mass Flow Sensor

µ-Coriolis Mass Flow Sensor with Differential Capacitive Readout

2020 ◽  
pp. 1-1
Author(s):  
Thomas V.P. Schut ◽  
Remco J. Wiegerink ◽  
Joost C. Lotters
Keyword(s):  
Mass Flow ◽  
Flow Sensor ◽  
Mass Flow Sensor

scholarly journals Micro Coriolis MASS flow sensor driven by integrated PZT thin film actuators

2018 ◽  
Author(s):  
Y. Zeng ◽  
J. Groenesteijn ◽  
D. Alveringh ◽  
R.J.A. Steenwelle ◽  
K. Ma ◽  
...  
Keyword(s):  
Thin Film ◽  
Mass Flow ◽  
Flow Sensor ◽  
Pzt Thin Film ◽  
Mass Flow Sensor

Parametric amplification in a micro Coriolis mass flow sensor: Reduction of power dissipation without loss of sensitivity

2013 ◽  
Author(s):  
Jarno Groenesteijn ◽  
Harmen Droogendijk ◽  
Remco J. Wiegerink ◽  
Theo S. J. Lammerink ◽  
Joost C. Lotters ◽  
...  
Keyword(s):  
Mass Flow ◽  
Power Dissipation ◽  
Parametric Amplification ◽  
Flow Sensor ◽  
Sensor Reduction ◽  
Mass Flow Sensor

The Design of Novel Thermal Gas Mass Flowmeter

2012 ◽  
Vol 224 ◽  
pp. 435-439
Author(s):  
Jun Hao Jiang ◽  
Shao Zhong Cao
Keyword(s):  
Mass Flow ◽  
Simple Structure ◽  
Thermal Mass ◽  
Flow Meter ◽  
The Core ◽  
Mass Flowmeter ◽  
Reasonable Cost ◽  
Overall Performance ◽  
Design Plan ◽  
Mass Flow Sensor

Aiming at the defects of current thermal mass flow sensor, we developed a novel thermal gas mass flowmeter based on the principle of constant power, which consists of semiconductor sensors and a microcontroller as the core controller. The design plan is carried out on the basis of simple structure and reasonable cost, which maximizes accuracy and reliability of the flowmeter. The experimental results verify that the flow meter is running well and achieves the overall performance goals of the plan.

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