Quality creates trust, innovation leads the future

CLOSE FIELD ABR TEST SYSTEM

The mouse auditory brainstem response (ABR) testing system induces and records underlying responses in the cerebral cortex by delivering sound stimulation of varying intensities.Test results are used to determine the presence of hearing loss, often for hearing screening and threshold assessment.Distortion product otoacoustic emissions (DPOAE) record ear canal sounds emitted by the cochlea and reflect the external function of hair cells.

Giant Tek closed-field ABR and DPOAE systems feature dual channels, doubling the test capacity compared to TDT systems.The sampling rate is 384 kHz and the resolution is 24 bits, which is leading the way.High sampling rates are particularly important for recording high frequency (>30 kHz) DPOAE signals.

鎶€鏈弬鏁?/h1>

Dual channel ABR amplifier

• High flexibility Lemo aviation connector

• High input impedance ≥GΩ

• Four-channel multi-stage amplification, amplification factor ≥0000

• Common mode rejection ratio (CMRR) ≥00dB

• Second-order bandpass filter 100-3000Hz (adjustable)

DPOAE

• Two high frequency (up to 50 kHz) tweeters

• High frequency microphone

• Microphone and mouse holders for easy insertion of probes

淇″彿鍒烘縺涓庨噰闆嗙郴缁?/h4>

• Maximum sampling rate: 384ksps, 24bits

• Dual-channel ABR simultaneous acquisition

• Output signal: sinusoidal signal, maximum frequency 100kHz

• Short pure tone stimulation, intensity range 10-110dB SPL

• Power supply: battery powered

Power Amplifier

• Frequency response 200Hz-100kHz, 20W

• Battery powered to reduce noise

software analysis

DPOAE results_1

DPOAE缁撴灉_2

ABR results

Tweeter calibration