EP 1166081 A1 20020102 - FLUID DENSITOMETER WITH EXCENTRICALLY SUPPORTED FLOAT/WEIGHT ASSEMBLY
Title (en)
FLUID DENSITOMETER WITH EXCENTRICALLY SUPPORTED FLOAT/WEIGHT ASSEMBLY
Title (de)
FLUID-DICHTEMESSGERÄT MIT EXZENTRISCH GELAGERTER SCHWIMMKÖRPER-GEWICHT-ANORDNUNG
Title (fr)
DENSITOMETRE DE FLUIDE COMPORTANT UN ENSEMBLE FLOTTEUR/POIDS MAINTENU DE MANIERE EXCENTREE
Publication
Application
Priority
- GB 0001238 W 20000331
- GB 9907453 A 19990331
Abstract (en)
[origin: GB2348507A] A fluid density measurement device 10 comprises a float/weight assembly 20 with a float 22 and weight 24 pivotable about an axis 26. The float/weight assembly adopts an orientation about the horizontal axis which is dependent upon the density of the fluid in which the device is immersed. A reference wheel 74 is rotatably mounted freely and is eccentrically weighted so as always to adopt a defined orientation relative to the vertical direction. A follower wheel 72 is magnetically linked by magnets 70,76 so as to follow the rotation of the float/weight assembly. A detector 80 detects the relative positions of the two wheels, thus sensing the orientation of the float/weight assembly regardless of the rotary position of the device as a whole. Detection may be done electrically or electro-optically. Also, the detector 80 may take the form of an optical, capacitive, inductive or potentiometric detector as an alternative. The two wheels are housed in a pressure-resistant compartment 60. As an alternative to the magnetic coupling and the detector wheels, the float/weight assembly may alter the position of a magnetic core so as to vary the transmission characteristic between two coils. The coils can be coupled to the detector in the pressure-resistant compartment by inductive windings (Fig.4).
IPC 1-7
IPC 8 full level
G01N 9/16 (2006.01)
CPC (source: EP)
G01N 9/16 (2013.01)
Citation (search report)
See references of WO 0058710A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
GB 2348507 A 20001004; GB 2348507 B 20020925; GB 9907453 D0 19990526; AU 3976400 A 20001016; EP 1166081 A1 20020102; WO 0058710 A1 20001005
DOCDB simple family (application)
GB 9907453 A 19990331; AU 3976400 A 20000331; EP 00919001 A 20000331; GB 0001238 W 20000331