ES2467065B2 - Thermal flowmeter for liquids - Google Patents
Thermal flowmeter for liquids Download PDFInfo
- Publication number
- ES2467065B2 ES2467065B2 ES201201265A ES201201265A ES2467065B2 ES 2467065 B2 ES2467065 B2 ES 2467065B2 ES 201201265 A ES201201265 A ES 201201265A ES 201201265 A ES201201265 A ES 201201265A ES 2467065 B2 ES2467065 B2 ES 2467065B2
- Authority
- ES
- Spain
- Prior art keywords
- measurement
- sensors
- liquids
- thermal flowmeter
- meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
- G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
- G01F1/708—Measuring the time taken to traverse a fixed distance
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
La presente invención tiene por objeto un caudalímetro térmico para fluidos de inserción de bajo coste, compuesto por un cuerpo sensor que incluye un elemento calefactor y varios sensores de medida y por un cuerpo con un método de medida que combina la medida por tiempo de vuelo (TOF) y la medida de la distribución de temperatura en un elemento caliente (medidor calorimétrico), lo que le permite operar en un rango distinto al habitual en este tipo de sensores (mayor de 500 ml/min) y con un error reducido debido al método de la redundancia de medida y a la disminución del error de medida por compensación de la temperatura del fluido.The present invention aims at a thermal flow meter for low-cost insertion fluids, consisting of a sensor body that includes a heating element and several measurement sensors and a body with a measurement method that combines the measurement by flight time ( TOF) and the measurement of the temperature distribution in a hot element (calorimeter meter), which allows it to operate in a different range than usual in this type of sensors (greater than 500 ml / min) and with a reduced error due to the measurement redundancy method and the reduction of the measurement error by compensation of the fluid temperature.
Description
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201201265A ES2467065B2 (en) | 2012-12-11 | 2012-12-11 | Thermal flowmeter for liquids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201201265A ES2467065B2 (en) | 2012-12-11 | 2012-12-11 | Thermal flowmeter for liquids |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ES2467065A2 ES2467065A2 (en) | 2014-06-11 |
| ES2467065R1 ES2467065R1 (en) | 2014-06-30 |
| ES2467065B2 true ES2467065B2 (en) | 2014-10-09 |
Family
ID=50877713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES201201265A Active ES2467065B2 (en) | 2012-12-11 | 2012-12-11 | Thermal flowmeter for liquids |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES2467065B2 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3438254A (en) * | 1965-10-19 | 1969-04-15 | United Control Corp | Fluid flow detector |
| EP1144958B1 (en) * | 1998-12-22 | 2004-03-24 | Sensirion AG | Method and sensor for measuring a mass flow |
| JP4504037B2 (en) * | 2004-02-02 | 2010-07-14 | 大日本印刷株式会社 | Optical element |
| JP5372976B2 (en) * | 2011-01-31 | 2013-12-18 | 日立オートモティブシステムズ株式会社 | Thermal flow sensor |
| US8794082B2 (en) * | 2011-02-25 | 2014-08-05 | Siargo Ltd. | MEMS time-of-flight thermal mass flow meter |
-
2012
- 2012-12-11 ES ES201201265A patent/ES2467065B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| ES2467065A2 (en) | 2014-06-11 |
| ES2467065R1 (en) | 2014-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG2A | Definitive protection |
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