The Institute for Safe, Quiet, and Durable Highways(SQDH), at the Ray Herrick Laboratories at Purdue University has built a device to test the noise generated from pavement – tire interaction. The pavement is attached to a circular drum and a tire rotates over the curved pavement surface.
Read more on the Purdue University web site.
Lord Corporation, North Carolina USA, have successfully installed an Active Vibration Control system in the Hindustan Aeronautics Advanced Light Helicopter, otherwise known as the Indian DHRUV. The system uses active Frahms to monitor and reduce vibration in the fuselage generated by the main rotor and the rotor aerodynamics.
Read the press release on the Lord Corporation web site.
Suss MicroTec and DELTA (Danish Electronics, Light and Acoustics) have created a website called Memunity that is dedicated to testing of microelectromechanical systems (MEMS). MEMUNITY and its members have techniques for testing MEMS accelerometers and microphones whilst they are still on the wafer.
Read more on the MEMUNITY web site.
Andromed has released an electronic stethoscope that has filtering to reduce ambient noise and noise generated by hand movement. It also has an auto-muting function that eliminates impact noise if the sensor is struck, or if the patient coughs.
Read more on the Andromed web site.
Innovative DSP have released a new DSP card for use with audio, vibration and sonar applications. The card has signal inputs for up to 32 channels at 24 bit resolution, up to 192kHz, and 6 analog outputs at 24 bit resolution. The card uses a Texas Instruments C6711 processor.
Read more on the Innovative DSP web site.
Nikon have released another camera lens in their VR – vibration reduction series, the AF-S VR Zoom-Nikkor 24-120mm f/3.5-5.6G IF-ED lens. The active vibration control help reduce the blurring of images that frequently occurs when taking pictures in low light conditions.
Orbseal have released an expanding polyurethane foam that can be used to fill cavities, designed for automotive use. The foam can improve the rigidity of panels and improve the transmission loss of panels.
Read more on the SAE web site.
Global Media has released a new producted called ClearMic, which is an “acoustic echo cancellation device”, which can be used for video or tele- conferencing.
Read more on the Global Media web site.
Acoustic Magic have a array microphone product that can be used for teleconferencing. The array microphone and associated DSP and software are used to locate someone talking, and electronically steers a “listening beam”, like an acoustic searchlight, in that direction.
Read more on the Acoustic Magic web site.
Andrea Electronics will sell its aircraft communication products division for $3.25m to a group of private investors. They have been looking for ways to fund their anti-noise and DSP microphone and audio software products divisions, said the president and CEO of the company, Christopher Sauvigne.
Read more on the Andrea Electronics web site.