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
G01D7/00—Indicating measured values
G01D7/02—Indicating value of two or more variables simultaneously
G01D7/04—Indicating value of two or more variables simultaneously using a separate indicating element for each variable
G01D7/06—Luminous indications projected on a common screen
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Investigating Or Analysing Materials By Optical Means
(AREA)