RF 장터 게시판 글답변

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> 
 > 
 > 제조사 : Br?el & Kjær, B&K 
> 
> 모델명 : 4195
> 
> 제품명 : Wideband Ear Simulator 
> 
> 
> 제품설명 : 
> 
> 
> Features
> ? Design based on ITU? T Rec. P.57, Type 3.2 low-leak and
> high-leak simplified pinna simulators
> ? Includes IEC 60318?4 (formerly IEC 711)-compliant coupler
> with ½? microphone and preamplifier
> ? Individual calibration according to ITU ? T Rec. P.57: supplied
> with acoustic impedance and frequency sensitivity response
> 
> 
> Wideband Ear Simulator for Telephonometry Type 4195 is designed
> for realistic telephone receive response measurements. The design
> is based on the specifications in the standard ITU ? T
> Recommendation P.57, Artificial Ear Type 3.2 low- and high-leak.
> The two grades of well-defined leakage make it possible to simulate
> the average real-ear loss for telephone handsets that are held either
> comfortably tight (low-leak pinna) or loosely (high-leak pinna)
> against the human ear.
> The ear simulator is recommended for measurements on supraaural
> and supra-concha earphones, both sealed and unsealed,
> practically covering all kinds of earphone design. The ear simulator
> can be used for wideband telephonometry in the frequency range
> 100Hz to 8 kHz.
> Type 4195 has been developed for use in combination with
> Telephone Test Head Type 4602-B and Mouth Simulator Type 4227.
> 
> 
> ****자세한문의는 010-8200-7982,02-6672-7813 으로 전화주세요 ****
 > 
 >

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