G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
G01D3/06—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for operation by a null method
Procédé de mesure d'une grandeur physique fournissant des données numériques à partir de dispositifs de mesure de valeurs analogiques et appareil de mesure appliquant ce procédé