ES2123452A1 - Aparato para la determinacion de masa y densidad. - Google Patents

Aparato para la determinacion de masa y densidad.

Info

Publication number
ES2123452A1
ES2123452A1 ES9700574A ES9700574A ES2123452A1 ES 2123452 A1 ES2123452 A1 ES 2123452A1 ES 9700574 A ES9700574 A ES 9700574A ES 9700574 A ES9700574 A ES 9700574A ES 2123452 A1 ES2123452 A1 ES 2123452A1
Authority
ES
Spain
Prior art keywords
mass
phase current
sensor
extensive
oscillation
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.)
Granted
Application number
ES9700574A
Other languages
English (en)
Other versions
ES2123452B1 (es
Inventor
Rodriguez Gloria Tardajos
Alvarez Jose Herrero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universidad Complutense de Madrid
Original Assignee
Universidad Complutense de Madrid
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Universidad Complutense de Madrid filed Critical Universidad Complutense de Madrid
Priority to ES9700574A priority Critical patent/ES2123452B1/es
Priority to ES9800587A priority patent/ES2155739B1/es
Priority to PCT/ES1998/000066 priority patent/WO1998041839A1/es
Priority to AU64011/98A priority patent/AU6401198A/en
Priority to EP98909498A priority patent/EP0905504A1/en
Publication of ES2123452A1 publication Critical patent/ES2123452A1/es
Application granted granted Critical
Publication of ES2123452B1 publication Critical patent/ES2123452B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Gyroscopes (AREA)
  • Measuring Volume Flow (AREA)

Abstract

APARATO PARA LA DETERMINACION DE MASA Y DENSIDAD. SE DESCRIBE UN DISPOSITIVO ELECTROMECANICO PARA MANTENER LA OSCILACION DE UNA MASA VIBRANTE, DE UTILIDAD EN APLICACIONES EN LAS QUE SEA PRECISO CONOCER LA MASA Y/O LA DENSIDAD UN SENSOR (1), METALICO O METALIZADO, EN PRESENCIA DE UN CAMPO MAGNETICO CREADO POR UNO O MAS IMANES (3), ACTUA SIMULTANEAMENTE COMO IMPULSOR Y RECEPTOR DE LA OSCILACION. LA FEM INDUCIDA AL OSCILAR, DEBIDAMENTE AMPLIFICADA POR UN OPERACIONAL, PRODUCE UNA CORRIENTE EN FASE CAPAZ DE MANTENER LA OSCILACION. EL SENSOR FORMA PARTE DE UN PUENTE DE WHEATSTONE PARA CONSEGUIR QUE SOLO SE AMPLIFIQUE LA FEM. EL CONTROL DE AMPLITUD OBLIGA AL SENSOR A VIBRAR A SU FRECUENCIA DE RESONANCIA (LIBRE DE ARMONICOS). UN SISTEMA CON DOS HILOS DE EXCITACION (E1, E2), Y DOS DE RECEPCION (D1, D2), ELIMINA EL EFECTO DE LA LONGITUD DE LOS CABLES ENTRE LA PARTE ELECTRONICA Y EL SENSOR.
ES9700574A 1997-03-18 1997-03-18 Aparato para la determinacion de masa y densidad. Expired - Fee Related ES2123452B1 (es)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ES9700574A ES2123452B1 (es) 1997-03-18 1997-03-18 Aparato para la determinacion de masa y densidad.
ES9800587A ES2155739B1 (es) 1997-03-18 1997-03-18 Aparato para la determinacion de masa y densidad.
PCT/ES1998/000066 WO1998041839A1 (es) 1997-03-18 1998-03-18 Aparato para la determinacion de masa y densidad
AU64011/98A AU6401198A (en) 1997-03-18 1998-03-18 Apparatus for determining the mass and the density
EP98909498A EP0905504A1 (en) 1997-03-18 1998-03-18 Apparatus for determining the mass and the density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9700574A ES2123452B1 (es) 1997-03-18 1997-03-18 Aparato para la determinacion de masa y densidad.

Publications (2)

Publication Number Publication Date
ES2123452A1 true ES2123452A1 (es) 1999-01-01
ES2123452B1 ES2123452B1 (es) 1999-09-16

Family

ID=8298650

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9700574A Expired - Fee Related ES2123452B1 (es) 1997-03-18 1997-03-18 Aparato para la determinacion de masa y densidad.

Country Status (1)

Country Link
ES (1) ES2123452B1 (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2155739A1 (es) * 1997-03-18 2001-05-16 Univ Madrid Complutense Aparato para la determinacion de masa y densidad.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232544A (en) * 1978-08-14 1980-11-11 Solartron Electronic Group Limited Transducer for sensing a parameter of a fluid
US4655075A (en) * 1984-09-26 1987-04-07 University Of Delaware Vibrating tube densimeter
US4793182A (en) * 1987-06-02 1988-12-27 Djorup Robert Sonny Constant temperature hygrometer
US4796468A (en) * 1984-04-03 1989-01-10 Public Health Laboratory Service Board Apparatus for measuring fluid density
US4934196A (en) * 1989-06-02 1990-06-19 Micro Motion, Inc. Coriolis mass flow rate meter having a substantially increased noise immunity

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232544A (en) * 1978-08-14 1980-11-11 Solartron Electronic Group Limited Transducer for sensing a parameter of a fluid
US4796468A (en) * 1984-04-03 1989-01-10 Public Health Laboratory Service Board Apparatus for measuring fluid density
US4655075A (en) * 1984-09-26 1987-04-07 University Of Delaware Vibrating tube densimeter
US4793182A (en) * 1987-06-02 1988-12-27 Djorup Robert Sonny Constant temperature hygrometer
US4934196A (en) * 1989-06-02 1990-06-19 Micro Motion, Inc. Coriolis mass flow rate meter having a substantially increased noise immunity

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WOOD, R.H. et al. A phase-locked loop for driving vibrating tube densimeters. Review of Scientific Instruments no 3 (Marzo de 1989). Paginas 493-494. Introduccion y descripcion del circuito. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2155739A1 (es) * 1997-03-18 2001-05-16 Univ Madrid Complutense Aparato para la determinacion de masa y densidad.

Also Published As

Publication number Publication date
ES2123452B1 (es) 1999-09-16

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