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.
I’ve added a Classifieds section that contains job adverts that I have seen, or people have sent in. There are also For Sale and Wanted sections. If you want to sell anything related to acoustics or vibration, or have a job offer, you are welcome to put a notice here for free.
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.
A professor at the Medical College of Georgia, is studying zebra fish that can regrow the hair inside their ears responsible for hearing. He is trying to find the genes responsible for that regrowth and see if they can be applied to human hearing problems.
Senera is a start-up company that provides structural health monitoring of bridges and tunnels using wireless transducers. Their concept is to continuously monitor the structures, with the goal of providing their customers with reduced maintenance costs, by not having to manually inspect the structures as frequently.
A division of PCB, called IMI Sensors are now selling accelerometers, signal conditions, alarm sensors and more that provide 4-20mA signals. The signal conditioners convert ICP accelerometer signals into 4-20mA analogue signals, suitable for use with industrial process monitoring systems.
Read more on the IMI Sensors web site.
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.
There is a good article on the vibration problem that occured on London’s Millenium bridge and how it was solved, in the latest issue of International Journal of Acoustics and Vibration. (Vibration of the London Millenium Bridge: Cause and Cure, David Newland, IJAV, March, Vol 8, No. 1, 2003)
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.