MTG at the 29th International Congress on Sound and Vibration (ICSV29) at the Hilton Prague hotel

Microtech Gefell: The International Institute of Acoustics and Vibration (IIAV) and the Society of Acoustics (Czech Republic) organized the 29th International Congress on Sound and Vibration (ICSV29) from 9 to 13 July 2023 in Prague for scientists, engineers and academics working in the areas of sound and vibration. This year, there was a total of 727 abstracts submitted from 45 countries. The Scientific Programme was structured into 14 Themes, each containing Structured Sessions and Regular Sessions

For the international acoustic- and vibration experts the ISCV29 included an extensive exhibition of sound and vibration measurement instrumentation, equipment and noise and vibration control technologies.

Together with its long-standing partner Sinus Messtechnik GmbH, MTG actively participated as exhibitor at the extensive international Congress exhibition of noise and vibration control technologies. MTG and Sinus presented a wide range of high-end sound and vibration measuring instruments to the international trade audience, such as measurement microphones for indoor and outdoor use, digital preamplifiers, acoustic calibrators, sound intensity probes.

Special attention was paid to the new WME 980 weatherproof microphone units for outdoor continuous sound measurement, for stationary and mobile noise monitoring as well as ambient and traffic noise analysis as a digital version with the MV 240 digital 1/2" measurement microphone preamplifier and USB interface.

The developent of a digital version of the WME 980 AM was carried out in response to important user impulses and allows an individual expansion of the functionality and the range of applications, especially in aircraft noise measurement.

WME 980 AM as digital version with USB interface:

• sound incidence vertical to the microphone axis
• 20 Hz to 20 kHz
• 15 dBA to 149 dB 
• LEMO® ERD.2S.306 
• Power supply: 6 V DC to 25 V DC
• remote calibration with electrostatic actuator

The special feature of the digital version is the combination with the 1/2" measuring microphone preamplifier MV 240 digital with USB interface.

The housing is made of stainless steel and is equipped with a bird spike, windscreen and rain shield. Inside the housing are easily exchangeable dehumidifier bags with silica gel. An easily exchangeable dehumidifier adapter with a humidity indicator window is part of the measurement microphone.

The microphone unit has a pole adapter with a G 1.5“ thread for installation. A tripod adapter or G 1“ thread adapter can be screwed directly to the pole adapter. The output connector is located well-protected at the lower end of the housing under the pole adapter.

The WME 980 AM can be calibrated with standard 1/2“ sound calibrators. For remote calibration, a remotely switchable, built-in calibration generator feeds a 1 kHz calibration signal into the measurement microphone via an electrostatic actuator. Inside the housing there are switches for the cable driver and the microphone heater, which prevents condensation under extreme climatic conditions.

The WME 980 AM is suitable for sound level meters of Type 1 acc. IEC 61672.