Sound level calibration system 9719

for pressure sensorsdigital

Product overview
High-pressure calibration system designed for level linearity and harmonic distortion testing of measurement microphones and pressure sensors.

Applications

• Calibration of measurement microphones for level linearity
• Evaluation of harmonic distortion of microphones
• Calibration and testing of pressure sensors in high-pressure environments
• Verification of sound level meters and acoustic transducers at medium-to-high SPL

Key features

• High-pressure measurement chamber capable of very high sound pressure levels (up to 171 dB rms)
• Comparison method using a high-pressure monitor microphone (IEC 61094-5)
• Low-distortion sound source: ≤ 0.5% distortion at 171 dB rms
• Automated stepwise level increase with data recording for rms, negative/positive peaks and distortion
• Fast, automated measurement routines with certificate printing and data export to Excel

Technical specifications

• Model: Type 9719
• Brand: HBK
• Product type: High-pressure microphone calibration system
• Calibration purpose: Level linearity and harmonic distortion testing
• Targets: Measurement microphones and pressure sensors
• Calibration range: 94–171 dB rms (14 µBar to 0.1 Bar peak) @ 500 Hz
• Maximum SPL: 171 dB rms
• Source distortion: ≤ 0.5% @ 171 dB rms
• Distortion measurements: 2nd, 3rd and total harmonic distortion
• Method: Comparison with high-pressure monitor microphone (IEC 61094-5)
• Procedure: Level increments of 1 dB or larger; record rms, negative peak, positive peak and distortion at each step
• Automation & output: Automated measurement, calibration certificate printing, Excel export
• Documentation: Detailed operator instructions included

Manufacturer

• HBK