#WA101 1D Sound probe design

Sound intensity probes manufactured at Weles Acoustics are built from high quality materials carefully picked during the probes’ design stage. The casing of WA101 sound intensity probe is built out of high quality stainless steel. Two acoustic transducers were fitted into the housing, a conventional sound pressure microphone and the Weles particle velocity sensor. The head of the probe was engineered to provide maximum acoustic transparency while maintaining protection for both sensing elements from particles of dust, sand or oil.

The robust and durable housing encloses a 3D printed mechanical sound amplifier that is built around the Weles particle velocity sensor. The mechanical amplifier is designed to increase the signal-to-noise ratio of the velocity transducer, as well as provide a mounting point for the sound pressure microphone. Thanks to this unique architecture, sound intensity is measured almost exactly at the same point. The distance separating both sensing elements is smaller than 8mm, making the WA101 a very compact and capable solution.

WA101 probe is built, assembled and tested by Weles Acoustics. Each probe is calibrated and mechanically tested to withstand shocks and excessive vibration – This PU sound intensity probe is built to endure. See specification for details.

Each WA101 probe is delivered with a Weles BOX. Connection between the probe and the BOX is established with a 7-pin LEMO cable. The BOX is designed to provide power to all sensing elements built into the probe. Furthermore, the Weles BOX acts as an interface between any data acquisition system that is meant to process analog signals provided by the probe. For WA101 sound intensity probe two signals are provided over two BNC connectors: sound pressure and particle velocity.