Digital Data: Their Derivation and Reduction for Analysis and Process Control

accuracy actuated analogue analogue-to-digital converter arrangement avoiding ambiguities binary coded decimal card punch circuit circular coincidence contacts continuous read-out system counter COUNTS PER CYCLE cyclic cyclic codes Cyclic permuted d.c. amplifiers data-handling system decimal digit DECODER 123 DECODER RELAY defining slits Dekatron detecting DETECTOR devices digital system digitizer Fig Diode matrix disk divisions drive drum equipment FIXED GRATING flip-flop gear graticule high resolution inches in diameter INPUT inversion rule leading and lagging linear scales main scale measuring milliseconds MOIRÉ-TYPE GRATING multiturn digitizer neon lamps neon optical digitizers obtained ODD-EVEN RELAY operates a relay optical resolver optical scale outputs photocells PRESET SWITCHES PRINTER Fig pulse radial read-out rates recording recording medium RELAY OPERATES relay tree reperforator result sampling system scale ranges serial shown in Fig signal silicon cells Silicon-cell digitizers solenoid SQUARED WAVE STORE RELAY SUBTRACTOR tape punches teleprinter time-shared tizers transistor typewriter valve W.R.D. code zero ΧΙΟ