Table Of Contents - BRUEL & KJAER 1022 Instructions And Applications

Contents
Page
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
General 5
Description of the Oscillator and Mixer-Section . . . . . . . . . . . . . . . . . . . . 6
Partial Blocking of Frequency Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Description of the Output Amplifier Section ...................... 10
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
()peration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
General ........................................................ 13
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Operation Using the Output Terminals Marked LOAD ............ 14
Operation Using the Built-in Attenuator ......... . ............. .. . 15
Frequency Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Automatic Recording ............ .. .............................. 16
Automatic Regulation of the Output Power ........................ 19
Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Trouble Shooting .......................................... ." ..... 21
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Output Transformer TU 0005 .. . ... . ... ..... . .. .. ................ 21
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Group A. Electronic Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Measurement of Frequency Response of Four-Terminal Networks .. 22
A.C. Bridge Measurements ........................................ 23
Measurement of Gain in A.F. Amplifiers ........................... 25
Group B. Acoustical Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Recording of the Frequency Response of Loudspeakers . . . . . . . . . . . . 26
Recording of the Frequency Response of Microphones . . . . . . . . . . . . 27
Recording the Frequency Characteristic of Hearing Aids and Ear-
phones .. . .................................................. 28
Checking of Hearing Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Measurements on Air Filters, Carbureltor Inlets etc ................. 31
Testing the Qualities of Airborne Sound Insulation ................ 33
Measurement of Reverberation Time .............................. 33
Frequency Calibrated Paper ...................................... 35
Non-Frequency Calibrated Paper ................................ 37
Use of the Protractor SC 2361 .................................... 37
Absorption Measurement of Sound Insulation Material ............ 38