Instrumentenfehl er 



im 



Isolator, Pilz- 



Inttrumentenfehler variations of 

 bearing d'ie to instruments (df ), 

 measuring instrument error. 



Integral, Austausch- exchange in- 

 tegral. Raum- space integral. 



Integralrechnung integral calculus. 



Integrierbar integrable. 



Intergrieren über integrate over. 



Intensitäts-ausfall fading. 

 -messgerät level recorder. 

 -Steuerung intensity, brightness 

 or brillance modulation (of c.-r. 

 tube), -verfahren variable- 

 density method (of sound record- 

 ing). 



Interferenz-bild interference figure. 

 -Tarbe interference color, -gebiet 

 mush area (in chain broadcasting). 



Interferenzialrefraktor inter- 

 ferometer. 



Interferenz- streifen interference 

 fringes (opt.) -ton beat tone, 

 interference note. 



Interferometer, Gitter- grating 

 interferometer. 



Interkombinat ionen inter -system 

 combinations. 



Intermedial intermejiiary, inter- 

 mediate. 



Intermittenzschwingung relaxation 

 oscillation, sawtooth o. , rat- 

 chet o, , timebase o. 



Intervall-faktor interval factor. 

 -regel interval rule (of Landr^). 



intervenieren intervene, interpose, 

 interfere. 



Intonation voicing. 



intonieren tune (a piano), intone. 



in Tritt kommen fall in step, syn- 

 chronize, phase-focusing (in beam 

 tubes ) . 



Inverter inverter (thyratron). 



Invertzeitrel ais inverse-time 

 relay. 



Ionen, Locker- defective ions, 

 "Locker" i. Soriih- spray 

 ions. Zwischengitter- inter- 

 stitial ions. Zwitter- dual, 

 hybrid or amphoteric ions. 



lonen-bewegl ichkeit ionic mobility. 

 -falle ion trap (in electron gun of 

 c.-r. tube), -komponente, Wasser- 

 stoff- pH value, hydrogen ion 

 concentration, -riickkopplung 

 ion feedback, -rumpf ion core, 

 -rundlauf circulation of ions. 

 -Spaltung ionic cleavage, ioniza- 

 tion. -Stärkemesser ionometer. 

 -steuerrohr thyratron. -windvolt- 

 messer ionic wind voltmeter, 

 -wölke ionic atmosphere. 



lonisatlonswarme heat of ioniza- 

 tion, h. of dissociation. 



lonisierungs-kammer, Fingerhut- 

 thimble ionization chamber. 

 -Spannung ionization potential^ 

 ionizing p., p. sufficient to 

 detach electron from its atomic 

 bond. -Spielaufbau Townsend 

 structure or build-up. -stufe 

 stage of ionization. 



Iris-auf- und-Abblendung irising 

 in and out. -blende iris 

 diaphragm. 



irisieren irisate, iridize, 

 iridesce. 



irreführen confuse, mislead, mis- 

 direct. 



Irrung correction. 



Isoklinen isoclinics (lines of 

 equal darkness, in photo- 

 elasticity). 



Isolations-messer insulation tester, 

 megger. -Prüfung, Stoss- impact, 

 impulse or flash test, -wider- 

 stand insulation resistance, in- 

 sulance (reciprocal of leakance).. 



Isolator, unvollkommener imperfect 

 dielectric, leaky insulation. 

 Abspann- terminal insulator, 

 strain i. Abstand-, Oistanz- 

 stand-off insulator, spacing i. 

 Durchfiihrungs-, Einf'uhrungs- 

 feed-through insulator, lead-in 

 i., wall duct, bushing. 

 Freiluft- outdoor insulator. 

 Kreuzungs- transposition insulator. 

 Pilz- mushroom, petticoat or um- 

 brella insulator floig leakage path). 



