Artificial ears, ear & mouth simulators

Artificial ears, ear & mouth simulators

  1. RA0045-S1 Prepol Ear Sim IEC 60318-4 (60711)
    Volume: 1260 mm³ @ 500 Hz
    Dyn range: 25 dB(A) to 150 dB
    IEC: 60318-4

    G.R.A.S. RA0045-S1 Prepolarized Ear Simulator according to IEC 60318-4 (60711)

    G.R.A.S. RA0045-S1 Preolarized Ear Simulator according to IEC 60318-4 Learn More
  2. RA0045 Ext Pol Ear Sim IEC 60318-4 (60711)
    Volume: 1260 mm³ @ 500 Hz
    Dyn range: 25 dB(A) to 164 dB
    IEC: 60318-4

    G.R.A.S. RA0045 Externally Polarized Ear Simulator according to IEC 60318-4 (60711)

    The G.R.A.S. IEC 711 RA0045 Ear Simulator is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. The RA0045 includes a 40AG pressure microphone and each RA0045 is individually calibrated with this specific microphone.

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  3. RA0045-S4 IEC60711 Ear Simulator incl. 40AP

    Standards: IEC 60318-4, ITU-T P.57
    Eff vol: 1260 mm³ @ 500 Hz
    Res freq: 13.5 kHz ±1 kHz

    G.R.A.S. RA0045-S4 IEC60711 Ear Simulator incl. 40AP

    The G.R.A.S. RA0045-S4 Ear Simulator is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. The RA0045 includes a 40AG pressure microphone and each RA0045 is individually calibrated with this specific microphone.

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  4. RA0045-S5 IEC 60711 Ear Simulator incl. 40BP

    Standards: IEC 60318-4, ITU-T P.57
    Eff vol: 1260 mm³ @ 500 Hz
    Res freq: 13.5 kHz ±1 kHz

    G.R.A.S. RA0045-S5 IEC 60711 Ear Simulator incl. 40BP

    The G.R.A.S. RA0045-S5 IEC 60711 Ear Simulator is an ear simulator with an acoustic input impedance closely resembling that of an average human ear. The RA0045 includes a 40AG pressure microphone and each RA0045 is individually calibrated with this specific microphone.

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  5. RA0039 Ear Sim IEC 60318-1
    Volume: Complex
    ANSI: S3.7
    IEC: 60318-1

    G.R.A.S. RA0039 Ear Simulator according to IEC 60318-1

    The G.R.A.S. IEC 318 RA0039 Ear Simulator is an ear simulator with an input impedance closely resembling that of an average human ear. When the RA0039 is coupled to a sound source, the impedance will load the sound source similar to the loading caused by the human ear.

    The RA0039 meets the requirements of IEC 60318-1:1998 Electroacoustics - "Simulators of human head and ear - Part 1: Ear simulator for the calibration of supra-aural earphones".

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  6. RA0076 Adapter for NBS9A Coupler
    Thread adapter

    G.R.A.S. RA0076 Adapter for NBS9A Coupler

    The G.R.A.S. RA0076 is a thread adapter to use when mounting a 1" or a 1/2" microphone in the RA0075 NBS 9-A Coupler. In the case of a 1/2" microphone the RA0077 1/2" - 1" Adapter for Coupler is also needed.

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  7. RA0113 1'' 2cc Coupler IEC 60318-5
    Volume: 2 cc
    ANSI: S3.7
    IEC: 60318-5
    Special feature: For 1" pressure microphones

    G.R.A.S. RA0113 1'' 2cc Coupler according to IEC 60318-5

    The G.R.A.S. RA0113 is a 2cc IEC 60126 coupler which uses a 1" microphone, e.g. the G.R.A.S. 40EN.

    The microphone, without its protection grid, screws into the base of the RA0113.

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  8. RA0038 1/2'' 2cc Coupler IEC 60318-5
    Volume: 2 cc
    ANSI: S3.7
    IEC: 60318-5
    Special feature: For 1/2" pressure microphones

    G.R.A.S. RA0038 1/2'' 2cc Coupler according to IEC 60318-5

    The G.R.A.S. RA0038 Coupler is a standard 2 cm³ Coupler according to IEC 126 and ANSI S3.7-1973. It uses a ½" microphone (preferably the G.R.A.S. 40AG) with a suitable preamplifier (e.g. G.R.A.S. 26AC which is a ¼" preamplifier but is supplied with an adapter for ½" microphones).

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  9. RA0056 LL Pinna Sim ITU-T P57 Type 3.2
    Volume: Complex

    G.R.A.S. RA0056 Low-leak Pinna Simulator according to ITU-T Rec. P57 Type 3.2

    The G.R.A.S. RA0056 Low-leak Pinna Simulator is an outer ear simulator intended to be used with the Ear Simulator RA0045 to simulate a complete ear for testing telephones and loudspeakers

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  10. RA0057 HL Pinna Sim ITU-T P57 Type 3.2
    Volume: Complex

    G.R.A.S. RA0057 High-leak Pinna Simulator according to ITU-T Rec. P57 Type 3.2

    The High-leak Pinna Simulator Type RA0057 is an outer ear simulator intended to be used with the Ear Simulator RA0045 to simulate a complete ear for testing telephones and loudspeakers.

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  11. 44AB Mouth Sim ITU-T P51
    ITU-T rec.: P.51
    IEEE standards: 269, 661

    G.R.A.S. 44AB Mouth Simulator according to ITU-T Rec. P51

    G.R.A.S. 44AB Mouth Simulator is a sound source which simulates the sound field around the human mouth at close quarters and complies with the Standards IEEE 269, 661 and ITU-T Rec. P51.

    G.R.A.S. 44AB is for testing telephone mouthpieces as well as other microphones similarly used in communication networks.

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  12. 44AA Mouth Sim ITU-T P51, power amp
    ITU-T rec.: P.51
    Special feature: Built-in power amplifier

    G.R.A.S. 44AA Mouth Simulator according to ITU-T Rec. P51 with built-in power amplifier

    G.R.A.S. 44AA Mouth Simulator  is a sound source which simulates the sound field around the human mouth at close quarters and complies with the Standards IEEE 269, 661 and ITU-T Rec. P51.

    G.R.A.S. 44AA is for testing telephone mouthpieces as well as other microphones similarly used in communication networks.

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