A Flip Chip Package for Thermal Mass Flowmeter

2006 ◽  
Author(s):  
Hui Cao ◽  
Zhiyin Gan ◽  
Xiaobing Luo ◽  
Boling Yu ◽  
Sheng Liu
Keyword(s):  
Flip Chip ◽  
Thermal Mass ◽  
Mass Flowmeter

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.

scholarly journals Pembuatan Prototipe Thermal Mass Flowmeter Tipe Heat Transfer untuk Pengukuran Laju Aliran Massa Udara

2015 ◽  
Vol 6 (1) ◽  
pp. 11
Author(s):  
Ghina A. Nudiani ◽  
Syafri Firmansyah ◽  
Farida I. Muchtadi ◽  
Faqihza Mukhlish
Keyword(s):  
Heat Transfer ◽  
Thermal Mass ◽  
Mass Flowmeter

Thermal flow sensor used for thermal mass flowmeter

2020 ◽  
Vol 103 ◽  
pp. 104871 ◽  
Author(s):  
Amina Bekraoui ◽  
Ahmed Hadjadj
Keyword(s):  
Flow Sensor ◽  
Thermal Mass ◽  
Thermal Flow ◽  
Mass Flowmeter ◽  
Thermal Flow Sensor

Measurement of Input Energy of LNG-based Gaseous Fuels with Capillary-typed Thermal Mass Flowmeter for Fuel Cells

2019 ◽  
Vol 17 (1) ◽  
pp. 119-126
Author(s):  
Yohei Tanaka ◽  
Ken Kato ◽  
Akira Negishi ◽  
Ken Nozaki ◽  
Tohru Kato
Keyword(s):  
Fuel Cells ◽  
Thermal Mass ◽  
Input Energy ◽  
Gaseous Fuels ◽  
Mass Flowmeter

scholarly journals Development of a Particulate Solids Thermal Mass Flowmeter

2014 ◽  
Vol 31 (0) ◽  
pp. 163-170 ◽  
Author(s):  
Mary Kato ◽  
John Pugh ◽  
Don McGlinchey
Keyword(s):  
Thermal Mass ◽  
Mass Flowmeter ◽  
Particulate Solids

scholarly journals A Rapid Prototyped Thermal Mass Flowmeter

Sensors ◽  
2021 ◽  
Vol 21 (16) ◽  
pp. 5373
Author(s):  
Borut Pečar ◽  
Danilo Vrtačnik ◽  
Matic Pavlin ◽  
Matej Možek
Keyword(s):  
Rapid Prototyping ◽  
Closed Loop ◽  
Thermal Parameters ◽  
Comsol Multiphysics ◽  
Thermal Mass ◽  
Measuring Range ◽  
Heater Temperature ◽  
Mass Flowmeter ◽  
Fully Coupled

An innovative rapid prototyping technique for embedding microcomponents in PDMS replicas was developed and applied on a thermal mass flowmeter for closed loop micropump flowrate control. Crucial flowmeter design and thermal parameters were investigated with a 3-D fully coupled electro-thermal-fluidic model which was built in Comsol Multiphysics 5.2. The flowmeter was characterized for three distinct measuring configurations. For precise low flowrate applications, a sensor-heater-sensor flowmeter configuration with a constant heater temperature was found to be the most appropriate yielding the measuring range of 0 to 90 µL·min-1 and the sensitivity of 1.3 °C·µL−1·min in the lower flowrate range of 0 to 40 µL·min−1.

Analysis of Characteristics of Halogen and LED Automobile Lamps

2020 ◽  
pp. 57-62
Author(s):  
Olga Yu. Kovalenko ◽  
Yulia A. Zhuravlyova
Keyword(s):  
Power Consumption ◽  
Flip Chip ◽  
Weather Conditions ◽  
Luminous Flux ◽  
Luminous Efficacy ◽  
Colour Temperature ◽  
Study Results ◽  
Calculation Results ◽  
Mandatory Rules ◽  
Halogen Lamps

This work contains analysis of characteristics of automobile lamps by Philips, KOITO, ETI flip chip LEDs, Osram, General Electric (GE), Gtinthebox, OSLAMPledbulbs with H1, H4, H7, H11 caps: luminous flux, luminous efficacy, correlated colour temperature. Characteristics of the studied samples are analysed before the operation of the lamps. The analysis of the calculation results allows us to make a conclusion that the values of correlated colour temperature of halogen lamps are close to the parameters declared by manufacturers. The analysis of the study results has shown that, based on actual values of correlated colour temperature, it is not advisable to use LED lamps in unfavourable weather conditions (such as rain, fog, snow). The results of the study demonstrate that there is a slight dispersion of actual values of luminous flux of halogen lamps by different manufacturers. Maximum variation between values of luminous flux of different lamps does not exceed 14 %. The analysis of the measurement results has shown that actual values of luminous flux of all halogen lamps comply with the mandatory rules specified in the UN/ECE Regulation No. 37 and luminous flux of LED lamps exceeds maximum allowable value by more than 8 %. Luminous efficacy of LED lamps is higher than that of halogen lamps: more than 82 lm/W and lower power consumption. The results of the measurements have shown that power consumption of a LED automobile lamp is lower than that of similar halogen lamps by 3 times and their luminous efficacy is higher by 5 times.

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