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Meetsystemen

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<strong>Meetsystemen</strong><br />

Inhoudstafel<br />

17 Niveaumeting<br />

17.1 Geleidbaarheidniveauschakelaar voor vaste stoffen ...........................................<br />

III.43<br />

17.2 Tril- en stemvorkniveauschakelaar voor vloeistoffen en vaste stoffen. ........................<br />

III.44<br />

17.3 Capacitieve niveauschakelaar of -meter voor vloeistoffen en vaste stoffen ....................<br />

III.45<br />

17.4 Ultrasone niveaumeter in vloeistoffen en vaste stoffen ........................................<br />

III.45<br />

17.5 Hydrostatische niveaumeter voor vloeistoffen ................................................<br />

III.46<br />

17.6 Microgolf- of radar-niveaumeting in vloeistoffen. ............................................<br />

III.47<br />

17.7 Microgolf- of radar-niveaumeting en -schakeling in vaste stoffen. ............................<br />

III.48<br />

17.8 Gammastraalniveauschakelaar en -meting ....................................................<br />

III.49<br />

17.9 Overige niveaumeettechnieken - overzichtstabellen ...........................................<br />

III.50<br />

18 Debietmeting<br />

18.1 Definities .....................................................................................<br />

III.53<br />

Laminaire en turbulente stroming ..............................................................<br />

III.54<br />

18.2 Verschildrukmetingen .........................................................................<br />

III.55<br />

Wet van Bernouilli .............................................................................<br />

III.55<br />

Meetflens of diafragma .........................................................................<br />

III.56<br />

Stuwbuis .......................................................................................<br />

III.58<br />

Venturi-buis ....................................................................................<br />

III.58<br />

Dall-buis .......................................................................................<br />

III.59<br />

18.3 Snelheidsprobes voor gas- en vloeistof debietmetingen ........................................<br />

III.60<br />

Pitot-buis ......................................................................................<br />

III.60<br />

Annubar .......................................................................................<br />

III.60<br />

Anemometer ....................................................................................<br />

III.61<br />

18.4 Rotameters ....................................................................................<br />

III.62<br />

De rotameter in ‘by-pass’ ......................................................................<br />

III.63<br />

Inductieve vlotterdebietmeting .................................................................<br />

III.64<br />

18.5 Turbinetellers ................................................................................<br />

III.65<br />

Specifieke verschillen tussen gas- en vloeistofmeters ..........................................<br />

III.67<br />

18.6 Vortex- of natuurlijke hydrodynamische oscillerende debietmeters ...........................<br />

III.67<br />

Stoorelementen ................................................................................<br />

III.68<br />

Opnemers .....................................................................................<br />

III.69<br />

Eigenschappen van vortexdebietmeter .........................................................<br />

III.69<br />

18.7 Debietmeter met gedwongen oscillatie: 'Swirlmeter' ..........................................<br />

III.70<br />

18.8 Massadebietmeters ...........................................................................<br />

III.71<br />

Coriolis-massadebietmeter ....................................................................<br />

III.71<br />

18.9 Elektromagnetische debietmeters (E.M.F.- Opnemers) ........................................<br />

III.74<br />

E.M.F. met geschakeld gelijkstroomveld .......................................................<br />

III.77<br />

18.10 Ultrasone debietmeter .......................................................................<br />

III.77<br />

18.11 Kruiscorrelatie debietmeter .................................................................<br />

III.77<br />

18.12 Overzichtstabel .............................................................................<br />

III.78<br />

__________ - v -<br />

Johan Baeten

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