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G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D23/00—Control of temperature
G05D23/19—Control of temperature characterised by the use of electric means
G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
G05D23/2037—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature details of the regulator
G05D23/2039—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature details of the regulator using mechanical means
Nach dem Potentiometerverfahren mit einem zur automatischen Steuerung des Potentiometers dienenden Nullrelais arbeitendes Messgeraet fuer schwache elektromotorische Kraefte
Relais mit zwei im entgegengesetzten Sinne wirkenden Spulen, die zu einem von magnetischen Kraftlinien durchsetzten Drehsystem ohne mechanische Richtkraft vereinigt sind
Vorrichtung zur fortlaufenden Ablesung und Registrierung der Taupunktstemperatur von Gasen unter Verwendung zweier elektrischer, nach dem Psychrometerprinzip arbeitender thermometrischer Elemente