What is BS EN 60318-6-Mechanical coupler for the measurement of bone vibrators about?
BS EN 60318 is a European standard on electroacoustics that discusses the simulators of the human head and ear to improve the acoustical performance of supra-aural earphones.
BS EN 60318-6 is the sixth part of the BS EN 60318 series that describes a mechanical coupler for the measurement of the output force of bone vibrators. The mechanical impedance of the coupler is specified in the frequency range 125 Hz to 8 000 Hz.
The coupler is intended for the calibration of audiometers using bone vibrators having a plane circular tip area of 175 mm² ± 25 mm² and for determining the performance of bone conduction hearing aids.
The vibratory force developed by a bone vibrator is not, in general, the same on the coupler as on a person’s mastoid. However, the IEC recommends its use as a means for the calibration of specified vibrators used in audiometry and for the exchange of specifications and of data on bone conduction hearing aids.
Note: Some bone vibrators of hearing aids and some non-standardised bone vibrators still used in audiometry have a curved surface. Users should be aware that those vibrators in general will not be loaded on the mechanical coupler with the same mechanical impedance as the one specified in BS EN 60318-6.
Who is BS EN 60318-6-Mechanical coupler for the measurement of bone vibrators for?
BS EN 60318-6 on mechanical coupler for the measurement of bone vibrators is useful for:
- Mechanical coupler manufacturers
- Mechanical coupler tester
- Hearing aid manufacturers
- Scientists
- Quality assurance departments
Why should you use BS EN 60318-6-Mechanical coupler for the measurement of bone vibrators?
A mechanical coupler is a device for calibrating bone-conduction vibrators designed to present a specified mechanical impedance to a vibrator applied with a specified static force and equipped with an electromechanical transducer to enable the vibratory force level at the surface of contact between the vibrator and mechanical coupler to be determined.
BS EN 60318-6 provides you with guidance on construction, calibration, calibration procedures, marking and instruction manual, coupling of bone vibrator to the mechanical coupler, the maximum permitted expanded uncertainty of measurements, and dimensions of mechanical impedance element base, guidance on the testing and calibration of mechanical couplers etc. This helps in the calibration of the bone vibrator.
The dimensions and procedures provided by BS EN 60318-6 assist you in improving the performance and quality of the mechanical coupler and ensuring the accuracy of bone vibrators.
With obedience and compliance to BS EN 60318-6, you can enhance the quality of the mechanical coupler, enable quality mass production, and manufacture a standardized product.