中耳分析儀
攜帶式中耳分析儀
Tympanometry measurements
Probe tone level: 226Hz ±2%, 85dB SPL ±2 dB
Pressure range: +200daPa to -400daPa ±10daPa or ±10% (whichever is greater) Direction of sweep: Positive to negative
Volumetric range: 0.2ml to 5ml ±0.1ml or ±5% (whichever is greater)
Analysis performed: Compliance peak level, compli ance peak pressure level, gradient and equivalent ear canal volume
