Bruel & Kjaer 3541: Sound Intensity Calibrator

รหัสสินค้า : Bruel & Kjaer 3541

Download Technical Datasheet

For more information contact : Pin Pinkaew Tel. 09-6989-8228

* Warranty 1 year. (Machine only) * Please check prices again.

Type3541‐A enables calibration of sound intensity measuring instruments by using a coupler designed especially for sound intensity calibrations. Intensity‐probe microphones are positioned in the coupler, which in conjunction with a pistonphone simulates a plane sound wave propagating along the axis of the probe. The instrument’s sensitivity to both sound intensity and particle velocity can then be calibrated. The pistonphone can also be used for sound pressure calibrations. In addition to calibration, Type3541‐A can be used to measure the pressure‐residual intensity index of instruments used for measuring sound intensity at 250Hz.

The main components of the calibrator are the intensity coupler and pistonphone. Other components include:

• Correction barometer
• Dummy microphone (1/4")
• 2×Microphone adapters
• Microphone adapters for the pistonphone (1/2", 1/4" and 1/8")
• Calibration charts

Features

• Intensity coupler for simulating a plane sound wave in a free field (US. pat. No. 4715219)
• Pistonphone for sound intensity, particle velocity and sound pressure calibrations