Method and apparatus for examining rod-shaped articles

A system for measurement and display of characteristics of rod-shaped articles, comprising:

• (a) test head means defining a test conduit for individually receiving rod-shaped articles;
• (b) supply means having a supply conduit for issuing pressurized fluid into said test conduit;
• (c) transducer means for providing output signals indicative of fluid pressure in said supply conduit on residence of articles in said test conduit;
• (d) storage means having signal-addressable storage locations for containing information signals indicative of article characteristics in predetermined diverse values and responsive to address-indicative signals to selectively issue said information signals from said storage locations;
• (e) display means for display of article characteristic values indicated in said information signals on issuance thereof from said storage means;
• and
• (f) circuit means for receiving said output signals and generating said address-indicative signals with address indication therein in predetermined relation to the fluid pressure indication in said output signals.