Sine Randon generator
1966
dimensions H 48 -L 38 -P 20 cm
Poids 20 Kg
1966
dimensions H 48 -L 38 -P 20 cm
Poids 20 Kg
BRUEL & KJOER type 1024
Type 1024
Sine Randon generator
1966
dimensions H 48 -L 38 -P 20 cm
Poids 20 Kg
1966
dimensions H 48 -L 38 -P 20 cm
Poids 20 Kg
Specification
Oscillator section.
Three types of output are available from the oscillator:
1. Narrow bands of random noise. 2. Sine waves.
3. Wide band random noise.
1. Narrow bands of random noise.
A narrow band of random noise can be swept automatically over the entire frequency range 20-20ooo Hz. The frequency characteristic is better than ± o.3 dB on ATTENUATOR OUTPUT and better than ± o.5 dB on LOAD.
A. Bandwidth Four different bandwidths can be selected. The "shape
Symmetrical Gaussian (normal) instantaneous voltage distribution up to four times the r.m.s. value. (4 a) at full output voltage.
Outputs. Switchable matching impedance for 6, 60, 600 or 6ooo ohm load. Maximum output power o.25 watts approx. Attenuator is variable in 10 dB steps (to within ± o.2 dB) from 40 .ftV to 4 V. The output voltage is continuously variable by potentiometer at each stage. The signal to hum ratio is greater than 70 dB.
Frequency Seale. 20--20ooo Hz true logarithmic. Accuracy 1% ± 1Hz.
Incremental scale -50 to +50 Hz of main scale reading. Both scales are illuminated.
Noise bands are shown in the table below.
Attenuation relative to the frequency characteristics of the noise bands.
2. Sine waves.
Continuously tunable in the 20-20ooo Hz frequency range. The frequency characteristic is better than ± o.3 dB on the ATTENUATOR OUTPUT and better than ± o:5 dB on LOAD 1 watt load.
A. Output. Matching impedance switchable for 6, 60, 600 or 6ooo ohm load.
Maximum output power 2.5 watts approx. Attenuator variable in 10 dB steps (to within ± o.2 dB) from 125 .tiV to 12.5 V. The output voltage is continuously variable via the potentiometer at each stage. The signal-to-noise ratio is better than 65 dB at maximum output, the signal-to-emission ratio is better than 70 dB.
B. Frequency scale. Truly logarithmic main scale from 20 to 20ooo Hz. Tolerance ± o.7 degrees of theoretical logarithmic curve.
The increment scale varies from -50 to +50 Hz from the main scale reading. Both scales are illuminated.
Frequency accuracy of main scale 1% ± 1 Hz and increment scale
± o5 Hz. c. Distortion.
Frequency in Hz ................ 20 ATTENTER terminal
No load with 10 V output approx. 0.7 . % Terminal LOAD
(Charging 1 watt) ................. 1.2 . % 3. Wide random band. Noise.
200 2ooo 20ooo 0:25% o.25% o.7% 0,5% 0.5 '% 1.2% A.
A. Frequency spectrum. Flat to within ± 1 dB in the 20-20ooo Hz range. b. Output. Matching impedance switchable for 6, 60, 600 or 6ooo ohms
Charger.
Maximum output power o.25 watts approx. The attenuator is variable in 10 dB steps (to within ± o.2 dB) from 40 p,V to 4 V. The output voltage is continuously variable by potentiometer at each stage. The signal to hum ratio is greater than 60 dB.
C. Voltage distribution. Symmetrical Gaussian (normal) voltage distribution up to four times the r.m.s. value. (4 a) at full output voltage.
Compressor section.
A. b.
C. d.
Frequency range. Flat to .± o.3 dB from 20 to 20ooo Hz. Dynamic range. 50 dB (40 dB is compressed to less than 2 dB). The input signal required for full regulation is approximately 5 V r.m.s.
Input impedance: 25 kohms.
Regulation speed: 3 - 10- 30- 100- 300 and 1ooo dB/sec. Selectable by switch.
Meter section.
A. Signal rectifier. Quasi-r.m.s.
B. Integration time. Five-metre time constants selectable o.3, 1, 3, 10 and 30 seconds.
C. Meter and circuit scale. Illuminated mirror scale.
Scale accuracy greater than 1.5%, circuit accuracy greater than 2% of full scale.
Deviation. Fully protected against overload.
Meter Moving coil instrument.
Miscellaneous. Push-button oscillator stop for silent switching
Reverberation measurements.
B. Frequency limit controls.
Partial locking of frequency scale by integrated cam discs.
C. Frequency analysis. \Vorm gear in oscillator p~rmits variable .
Driven from a 2305 type level motor. Connection made by flexible shaft. Magnetic clutch for clamping and releasing the drive. Clutch can be controlled remotely. Precise synchronisation with the level recorder's calibrated frequency paper.
Power ratings. 100, 115, 127, 150, 220 and 240 V. 5o-400 .~z.
Power consumption 80 W.
Dimensions and weight: Height 48 cm Depth 20cm Width 38cm
Weight: 20.2 kg
Oscillator section.
Three types of output are available from the oscillator:
1. Narrow bands of random noise. 2. Sine waves.
3. Wide band random noise.
1. Narrow bands of random noise.
A narrow band of random noise can be swept automatically over the entire frequency range 20-20ooo Hz. The frequency characteristic is better than ± o.3 dB on ATTENUATOR OUTPUT and better than ± o.5 dB on LOAD.
A. Bandwidth Four different bandwidths can be selected. The "shape
Symmetrical Gaussian (normal) instantaneous voltage distribution up to four times the r.m.s. value. (4 a) at full output voltage.
Outputs. Switchable matching impedance for 6, 60, 600 or 6ooo ohm load. Maximum output power o.25 watts approx. Attenuator is variable in 10 dB steps (to within ± o.2 dB) from 40 .ftV to 4 V. The output voltage is continuously variable by potentiometer at each stage. The signal to hum ratio is greater than 70 dB.
Frequency Seale. 20--20ooo Hz true logarithmic. Accuracy 1% ± 1Hz.
Incremental scale -50 to +50 Hz of main scale reading. Both scales are illuminated.
Noise bands are shown in the table below.
Attenuation relative to the frequency characteristics of the noise bands.
2. Sine waves.
Continuously tunable in the 20-20ooo Hz frequency range. The frequency characteristic is better than ± o.3 dB on the ATTENUATOR OUTPUT and better than ± o:5 dB on LOAD 1 watt load.
A. Output. Matching impedance switchable for 6, 60, 600 or 6ooo ohm load.
Maximum output power 2.5 watts approx. Attenuator variable in 10 dB steps (to within ± o.2 dB) from 125 .tiV to 12.5 V. The output voltage is continuously variable via the potentiometer at each stage. The signal-to-noise ratio is better than 65 dB at maximum output, the signal-to-emission ratio is better than 70 dB.
B. Frequency scale. Truly logarithmic main scale from 20 to 20ooo Hz. Tolerance ± o.7 degrees of theoretical logarithmic curve.
The increment scale varies from -50 to +50 Hz from the main scale reading. Both scales are illuminated.
Frequency accuracy of main scale 1% ± 1 Hz and increment scale
± o5 Hz. c. Distortion.
Frequency in Hz ................ 20 ATTENTER terminal
No load with 10 V output approx. 0.7 . % Terminal LOAD
(Charging 1 watt) ................. 1.2 . % 3. Wide random band. Noise.
200 2ooo 20ooo 0:25% o.25% o.7% 0,5% 0.5 '% 1.2% A.
A. Frequency spectrum. Flat to within ± 1 dB in the 20-20ooo Hz range. b. Output. Matching impedance switchable for 6, 60, 600 or 6ooo ohms
Charger.
Maximum output power o.25 watts approx. The attenuator is variable in 10 dB steps (to within ± o.2 dB) from 40 p,V to 4 V. The output voltage is continuously variable by potentiometer at each stage. The signal to hum ratio is greater than 60 dB.
C. Voltage distribution. Symmetrical Gaussian (normal) voltage distribution up to four times the r.m.s. value. (4 a) at full output voltage.
Compressor section.
A. b.
C. d.
Frequency range. Flat to .± o.3 dB from 20 to 20ooo Hz. Dynamic range. 50 dB (40 dB is compressed to less than 2 dB). The input signal required for full regulation is approximately 5 V r.m.s.
Input impedance: 25 kohms.
Regulation speed: 3 - 10- 30- 100- 300 and 1ooo dB/sec. Selectable by switch.
Meter section.
A. Signal rectifier. Quasi-r.m.s.
B. Integration time. Five-metre time constants selectable o.3, 1, 3, 10 and 30 seconds.
C. Meter and circuit scale. Illuminated mirror scale.
Scale accuracy greater than 1.5%, circuit accuracy greater than 2% of full scale.
Deviation. Fully protected against overload.
Meter Moving coil instrument.
Miscellaneous. Push-button oscillator stop for silent switching
Reverberation measurements.
B. Frequency limit controls.
Partial locking of frequency scale by integrated cam discs.
C. Frequency analysis. \Vorm gear in oscillator p~rmits variable .
Driven from a 2305 type level motor. Connection made by flexible shaft. Magnetic clutch for clamping and releasing the drive. Clutch can be controlled remotely. Precise synchronisation with the level recorder's calibrated frequency paper.
Power ratings. 100, 115, 127, 150, 220 and 240 V. 5o-400 .~z.
Power consumption 80 W.
Dimensions and weight: Height 48 cm Depth 20cm Width 38cm
Weight: 20.2 kg
Data sheet
- Date of manufacturing
- 1966
- Availability
- DECORATION, LOCATION, CINEMA
- Localisation
- STOCK
- Presentation
- Painted steel