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AH 268

Dual axis dynamic acoustic simulation testing system
The AH 268 dual axis dynamic acoustic simulation testing system inherits the core functions of the AH 265 high-precision simulated human head model and innovatively integrates a dual axis rotation system and a human-machine interaction control module. It supports controlling the model's horizontal ± 90 ° and vertical ± 90 ° dynamic deflection through a touch interface, or receiving external program instructions to achieve automated testing, breaking through the limitations of traditional static simulation.

Description
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Description

Specifications

Artificial ear
Pressure-field microphone frequency response	20Hz - 8kHz ± 0.5dB 8kHz - 16kHz ± 1dB
Noise floor	<16dB（A）
Sensitivity	50mV/Pa (-26.0dB）±2dB
Dynamic range	16dB（A）-135dB（A）
Working voltage	IEPE，4mA
Basic characteristics: 1. Simulate the anatomical shape of the auricle with reference to ITU-T P.57, type 3.3 auricle 2. Complies with IEC 60318-4:2010 Ed.1.0 (formerly IEC 60711) electroacoustics - Simulators for the human ear and head, Part 4: Blocked ear simulators for measuring insertion earphones 3. Compliant with ITU-T Recommendation P.57 (08/96) P-series: Telephone Transmission Quality, Measurement Target Equipment: Simulated Ear 4. Compliant with SJ/T 10659-1995 Measurement Plug in Ear Simulator for Plug in Earphones
Artificial mouth
Range	100Hz - 10kHz
Maximum power	10W
Impedance	4ohm
Frequency response (after equalization)）	Satisfy ETSI TS 102 924
THD	Superior to ITU-T P.58 standard
Basic characteristics: 1. Comply with the requirements of IEEE269661 international standard and ITU-T P.51 recommendation for transmitting acoustic signals at the "mouth reference point" 2. Acoustic measurement standard sound source 3. Low distortion, high stability
Use&Place environment
Temperature range for use	0 - 50 °C, 32°F - 122°F
Storage Temperature Range	-20 - 70°C, -4°F - 158°F
Humidity	20 - 80% RH
Head and torso
Dimensions	400200680mm
Weight	About 23Kg
Horizontal/Vertical deflection angle	±90°
Deflection accuracy	±0.1
Maximum horizontal rotational speed	20rpm
Maximum vertical rotational speed	10rpm
Configure: 1. The external geometric dimensions must comply with ITU-T P.58 2. Consistency of headphone placement and retrieval 3. Meet the testing needs of various scenarios such as headphones, smart glasses, and car intelligent cockpits