Arrangements for displaying electric variables or waveformes (display by mechanical displacement only G 01 R 5/00, G 01 R 7/00, G 01 R 9/00; recording frequency spectrum G 01 R 23/18) [4]
13
/
02
•
for displaying measured electric variables in digital form (counters G 06 M
; analogue/digital conversion in general H 03 M 1/00) [4]
13
/
04
•
for producing permanent records [4]
13
/
06
•
•
Modifications for recording transient disturbances, e.g. by starting or accelerating a recording medium
13
/
08
•
•
Electromechanical recording system using a mechanical direct-writing method
13
/
10
•
•
•
with intermittent recording by representing the variable by the length of a stroke or by the position of a dot
13
/
12
•
•
Chemical recording, e.g. clydonographs (G 01 R 13/14
takes precedence)
13
/
14
•
•
Recording on a light-sensitive material
13
/
16
•
•
Recording on a magnetic medium
13
/
18
•
•
•
using boundary displacement
13
/
20
•
Cathode-ray oscilloscopes (cathode-ray tubes H 01 J 31/00)
13
/
22
•
•
Circuits therefor (circuits for generating pulses, e.g. sawtooth waveforms H 03 K 3/00)
13
/
24
•
•
•
Time-base deflection circuits
13
/
26
•
•
•
Circuits for controlling the intensity of the electron beam (brilliance control H 01 J 29/98)
13
/
28
•
•
•
Circuits for simultaneous or sequential presentation of more than one variable (electronic switches H 03 K 17/00)
13
/
30
•
•
•
Circuits for inserting reference markers, e.g. for timing, for calibrating, for frequency marking
13
/
32
•
•
•
Circuits for displaying non-recurrent functions such as transients; Circuits for triggering; Circuits for synchronisation; Circuits for time-base expansion
13
/
34
•
•
•
Circuits for representing a single waveform by sampling, e.g. for very high frequencies (sample-and-hold arrangements G 11 C 27/02) [2]
13
/
36
•
using length of glow discharge, e.g. glowlight oscilloscopes (discharge tubes H 01 J) [4]
13
/
38
•
using the steady or oscillatory displacement of a light beam by an electromechanical measuring system (such measuring systems per seG 01 R 5/00, G 01 R 7/00, G 01 R 9/00) [4]
13
/
40
•
using modulation of a light beam otherwise than by mechanical displacement, e.g. by Kerr effect [4]
13
/
42
•
Instruments using length of spark discharge, e.g. by measuring maximum separation of electrodes to produce spark
