Awa6128st stethoscope teste

  Awa6128st stethoscope is a kind of medical device for auscultating the sound changes of human heart, lung, organs and other activities
The sound transmission characteristics of stethoscope directly affect the diagnostic accuracy of medical personnel on patients' condition
In the pharmaceutical industry standard YY 91035-1999 stethoscope 4
2 Article 2 clearly stipulates that the frequency response curve of the stethoscope shall be within the range of 100 ~ 500 Hz, the attenuation based on the test sound source shall not be greater than 12dB, and the attenuation based on the test sound source shall not be greater than 20dB within the range of 500 ~ 1000 Hz
In the process of designing and producing stethoscope, there is an urgent need for a measuring instrument that can quickly and accurately detect the sound transmission characteristics of stethoscope
Awa6128st stethoscope tester came into being under this background
Awa6128st stethoscope tester implements standards such as YY 91035-1999 stethoscope and YY 91077-1999 stethoscope transmission characteristic test method, which is specially used for stethoscope transmission characteristic test
The software can display the sound pressure level of the test sound source, the sound pressure level of the stethoscope transmission output, their attenuation values and the qualified box in a curve, which is very intuitive Main performance technology 1
Test capacitor microphone: awa14422 sound pressure test microphone sensitivity: & gt- 30 dbv / PA dynamic range: 40 dB ~ 130 dB frequency range: 20 Hz ~ 8000 Hz 2
Test sound source: sound pressure level: 94 DB & plusmn; 1 dB frequency range: 20 Hz ~ 6000 Hz harmonic distortion coefficient: & lt; 3% 3
Measurement amplifier: measurement range gain: - 20 dB, 0 dB, 20 dB dynamic range: 65 dB measurement error: & lt; 0
5 DB4
Audio signal generator: frequency range: 50 Hz ~ 2000 Hz sine wave signal with variable amplitude frequency error: & lt; 1% dynamic range: & gt; 60 db5
Measurement frequency points: 100 Hz, 200 Hz, 300 Hz, 400 Hz, 500 Hz, 600 Hz, 700 Hz, 800 Hz, 900 Hz, 1000 Hz (customizable) 6
Measurement data export: measurement report in word format