Pré-amplificador tipo 1900C
Pré-amplificador de microfone clássico de 1/2 polegada
O pré-amplificador ZXONIC Type 1900C de 1/2 polegada oferece uma faixa de frequência de até 200 kHz com distorção harmônica total ultrabaixa (≤0,02%) e capacitância de entrada mínima (0,3 pF), tornando-o ideal para medições precisas de banda larga.
System Overview
Type 388 Audiometer & Tympanometer Calibration System is a complete test and calibration solution designed for manufacturers, service laboratories, and certification facilities working with audiometers and tympanometers. Built for both routine calibration/certification and product design verification, type 388 combines precision hardware, standardized acoustic and mechanical couplers, and user-friendly PC software to deliver accurate, repeatable, and efficient measurements.
The system supports a wide range of transducers used in hearing assessment equipment, including supra-aural and circumaural earphones, insert earphones, and bone vibrators. By integrating our manufactured artificial ears, acoustic couplers, and artificial mastoids, type 388 enables standardized testing in accordance with relevant IEC requirements. It is suitable for performing the full range of essential audiometer and tympanometer tests, from sound pressure and frequency checks to distortion, masking noise, pressure indication, cavity volume verification, and bone conduction calibration.
At the center of the system is a real-time measurement and analysis platform that guides the user through the testing process step by step. The software simplifies setup, automates test procedures, displays measurement data in real time, and generates customized calibration reports with clear color graphs for documentation, printing, and sharing. This helps reduce setup time, improve consistency, and increase productivity in both laboratory and production environments.
With its low background noise, wide dynamic measurement range, and high-accuracy data acquisition, the ZX388 provides dependable performance for demanding calibration tasks. The system can also be configured according to specific application needs, allowing users to select the most suitable combination of hardware, accessories, and software for audiometer-only or combined audiometer and tympanometer testing.
Designed around internationally recognized standards, including IEC 60645-1 and IEC 60645-5, the ZX388 offers a practical and scalable solution for organizations that need reliable, standards-based calibration of hearing test equipment.
Key Features
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Comprehensive calibration platform for both audiometers and tympanometers
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Supports multiple transducer types, including supra-aural, circumaural, insert, and bone-conduction devices
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Standardized coupler options with artificial ears, acoustic couplers, and artificial mastoids
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User-friendly PC software with guided test procedures and automated operation
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Real-time measurement display for sound pressure, frequency, distortion, and related parameters
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Customizable system configuration based on user application and test scope
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Custom report generation with data tables, graphs, printing, and export capability
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Low background noise and wide dynamic range for reliable and repeatable measurements
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High-accuracy data acquisition for laboratory and production use
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Suitable for calibration, certification, R&D, quality control, and service applications
Reference Standards
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IEC 60645-1:2017 – Electroacoustics – Audiometric equipment – Part 1: Equipment for pure-tone audiometry
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IEC 60645-5:2004 – Electroacoustics – Audiometric equipment – Part 5: Instruments for the measurement of aural acoustic impedance/admittance
Other Related Standards
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IEC 60318-1 – Ear simulator for supra-aural and circumaural earphones
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IEC 60318-3 – Acoustic coupler for audiometric earphones
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IEC 60318-4 – Occluded-ear simulator for insert earphones
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IEC 60318-5 – 2 cm³ coupler for insert earphones
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IEC 60318-6:2007 – Mechanical coupler for the measurement of bone vibrators
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IEC 60942:2017 Class 1 – Acoustic calibrators
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IEC 61094-4 – Precision measurement microphones
Typical Applications
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Audiometer calibration and certification
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Tympanometer calibration and verification
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Product design validation and type testing
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Routine quality control in production
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Service and maintenance calibration
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Research and laboratory evaluation of hearing test equipment
Acoustic Couplers & Ear Simulators
Type 388 system can be configured with standardized acoustic couplers, ear simulators, and artificial mastoids to support calibration of a wide range of audiometric transducers.
Type 388 system supports a range of standardized acoustic and mechanical couplers for testing different audiometric transducers, including supra-aural, circumaural, insert, and bone-conduction devices. These components are designed to support accurate and repeatable calibration in accordance with relevant IEC standards.
Type 6160 Ear Simulator
Designed for supra-aural and circumaural earphone testing, such as RadioEar DD65V2 and Sennheiser HDA280. It complies with IEC 60318-1 and includes a precision IEC 61094-4 measurement microphone, making it suitable for standardized acoustic measurements over a wide frequency range.
Type 6161A Acoustic Coupler
Designed for insert earphone testing, including models such as IP30 and ER-3A. This 2 cm³ coupler complies with IEC 60318-5 and includes a mounting base and precision measurement microphone for reliable insert transducer calibration.
Type 6162 Ear Simulator
An occluded-ear simulator for insert earphones such as IP30 and ER-3A. Complying with IEC 60318-4, it is intended for more advanced insert earphone testing and includes a mounting base and precision measurement microphone.
Type 6163A Acoustic Coupler
Designed for audiometer earphone testing, including models such as Beyer DT48, Telephonics TDH39, TDH49/50, Sennheiser HDA280, and RadioEar DD45. It complies with IEC 60318-3 and is used for standardized testing of supra-aural audiometric earphones.
Type 6166 Artificial Mastoid
A precision mechanical coupler used for the calibration of bone-conduction transducers, including audiometer bone vibrators and bone conduction hearing devices. It complies with IEC 60318-6:2007 and provides a standardized platform for bone-conduction measurements.
