320 



SUBJECT INDEX 



Magnetic transducers, nuclear mag- 

 netic-resonance induction, 

 207-208 

 optical systems, 211-214 



based on Faraday effect, 211-213 

 based on light absorption in 

 colloidal suspensions, 212-214 

 search coils, 180-190 

 coil constant, 181-182 

 flux ball, 188-189 

 magnetomotive-force coil, 



189-190 

 moving, 182-188 

 oscillating, 185-188 

 rotating, 183-185 

 stationary, 181-182 

 for use in inhomogeneous fields, 

 188-189 

 thermal systems, 210-211 

 useful range, table, 179 

 Magnetoelastic transducer (magneto 



restrictive), 56-60 

 Magnet oresistive transducers, 



196-199 

 Magnetorestrictive transducer, 56-60 

 Magnetron tubes for magnetic field 



measurements, 192-194 

 Mechanic-optical transducer for dis- 

 placement measurements, 89 

 Mechano-electronic transducer, 85 

 Microwave refractometer for humidity 



measurement in gases, 146 

 Modifiers, definition, 2 

 Moisture transducers {see Humidity 



transducers) 

 Moving-anode transducer for 



displacement measurements, 

 85 

 Moving-coil magnetometer, 209 

 Moving-coil system for displacement 



measurements, 64 

 Multiple-plate ionization chamber, 



287-288 

 Mylar for Geiger-counter windows, 

 295 



Needle thermoelements, 172 

 Noise, in cables, 71-72 



in Geiger counters, 294-295 



Noise, in photoconductors, 265-268 

 in photoemissive systems, 240 

 in photomultipliers, 252-254 

 in potentiometers, 29 

 Noise thermometer, 174-176 

 Nuclear magnetic resonance, for 

 humidity determination, 

 150-152 

 for magnetic field measurements, 

 204-208 



Optical radiation transducers, 

 233-281 



photoconductors, 262-269 



photocounters, 261-262 



photodiode, 273-274 



photoemissive systems, 233-262 



phototransistor, 274 



photovoltaic cells, 269-274 



radiation bolometers, 278-280 



radiation thermoelements, 274-277 



thermal systems, 274-281 



thermionic detector, 281 

 Oscillating-string transducer, 83 

 Output impedance, 5 

 Output transducers, definition, 2 



Parallel-plate counters, 298-299 

 Peaking strips, 203-204 

 Peltier effect, 168 



Permeability-variation method, for 

 displacement measurements 

 (magnetoelastic transducers), 

 56-60 

 for magnetic field measurements 



{see Magnetic transducers) 

 for thickness gauges, 13 

 Photoconductive transducers, 262- 

 269 

 gain of, 263 

 noise in, 265-268 

 properties of technical photo- 

 conductors, table, 266-267 

 quenching effect, 268 

 response time, 264-265 

 spectral distribution, 264 

 threshold wavelength, 264 

 Photocounters, 261-262 



