เครื่องกำเนิดเสียงสีชมพู

KP4180 Pink Noise Generator

Brief Introduction

DM8899A noise signal generator/measurement filter is improved and designed based on original DM8898noise signal generator/measurement filter .According to national standard GB8898-2001 ,in order to make it convenient for measurement of audio power amplifier,1kHz sine wave signal is added in.The device is consists of flat noise generator,pink noise generator in accordance with GB8898-2001 international requirement,which require band pass filter,low pass filter,high pass filter,A-weighted filter and 1kHz sine wave signal generator;the device meet the measurement requirement of audio power amplifier and other equipments.The device can be used as noise signal generator independently.Its attached A-weighted filter ,low pass filter,etc,not only can be used independently but also work together with noise signal.

Technical Parameter

2.1 flat noise frequency response:(20Hz～20kHz)±1.0dB,output amplitude 0～1V；

2.2 pink noise frequency response:(20Hz～20kHz)±1.5dB,output amplitude 0～1V；

2.31kHzsine wave signal generator:frequency 1kHz±1%,frequency stability 1x10-3,distortion degree≤0.5%,output amplitude 0～5V；

2.4 band pass filter:meet international standard GB8898-1997；

2.5 high pass filter:22.4Hz(+0.5dB,-6dB),out-of-band attenuation superior to 12dB/OCT,in-band fluctuation±0.5dB；

2.6 Low pass filter:22.4kHz(+0.5dB,-6dB)out-of-band attenuation superior to18dB/OCT,in-band fluctuation ±0.5dB；

2.7 band pass filter is made up of high pass filter and low pass filter,whose features meet standards of IEC60268-1.

2.8 A-weighted filter:meet standards of IEC-60651；

2.9 shoot-through:(20Hz～100kHz)±0.5dB；

2.10 input impedance:≥50kΩ；

2.11 pain differential between all band pass filters and shoot-through gear:superior to±0.5dB；

2.12 filter’s max input voltage:≤3Vrms；

2.13 power and voltage:AC220V±5%,50Hz±2Hz.