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OCTAVE FILTER SET

Manufacturer: Bruel and Kjaer
Model: 1613

Description

A portable filter set containing 11 passive band-pass filter for octave analysis. It is primarily designed for use with the Precision Sound Level Meter.

Specifications

Attenuation
Frequency Range	22 Hz - 45 Hz covered by 11 octave filters
Centre Frequencies	31.5, 63, 125, 250, 500, 1000, 2000, 4000, 8000, 16000 and 31500 Hz
Pass-bad Uniformity	± 0.5 dB
At the band edge (1/2 octave from centre frequency)	3 ± 1 dB
One octave from centre frequency	25 dB
Two octaves from centre frequency	50 dB
Max Input Voltage	1 Volt rms
Max Source Impedance	25 ohms
Load Impedance	146 kohms, 40-60 pF

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Operating Instructions

For normal band-pass operation, leave the Weighting Switch OFF. With the Weighting Switch ON, each channel is individually adjustable by means of a small screwdriver to adjust the potentiometers beside the control knob.

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keywords: band pass filter.

Document created Wed Jun 12 15:24:52 EDT 1996. Original author: Jeremy Bailin and Jaime Espinoza.
Last updated 06/27/96. Revised by David Harrison.