.~ With voltage or current conversion (e.g., D.C. to A.C., 60 to 1000)
DEFINITION
Classification: 324/120
(under subclass 76) Subject matter having means to transform the voltage or current to be measured into a different current or voltage and having means to measure said different voltage or current.
(1) Note. This subclass contains, for example, systems where a DC voltage is changed into an AC voltage which is measured as an AC voltage, systems wherein the input voltage is converted into a pulse voltage and systems wherein the input voltage is converted from one frequency into another frequency.
SEE OR SEARCH THIS CLASS, SUBCLASS:
118, for this subject matter wherein the input voltage or current is first modulated and then demodulated.
119, for this subject matter having a rectifier.
SEE OR SEARCH CLASS
340, Communications: Electrical, 870.01+, for telemetering systems having no significant measuring, testing or sensing of the condition to be telemetered. Some telemetering systems utilize current conversion means. Note indented subclasses 870.19+ for telemetering systems in which the value of the condition is represented by a pulse code.
