"Good acoustics" is usually the target in room acoustics. The meaning of this depends on the type of room and the intended use. Rooms for musical presentations need a good sound quality at as many seats as possible while lecture halls demand good intelligibility of the teaching person. In case of open-space offices a productive working environment should be ensured. This can mean a focused individual work or a good communication between workers within the same team. CadnaR offers the tools to efficiently handle...
Noise control in industrial halls is essential to ensure a non-harmful environment for the workers and limit the immissions caused at the neighbouring buildings. Check out how CadnaR enables you to model and calibrate your machines, calculate and evaluate noise at the workplaces and assess measures to acoustically improve any situation at hand.
Particle size is a geometric characteristic that is usually assigned to material objects with sizes ranging from nanometers to millimeters. There is a wide variety of real systems that contain particles within this size range. These systems are generally polydisperse, meaning that the particles in a particular sample vary in size. Therefore, in order to adequately characterize such systems, it is not sufficient to simply determine a single particle size. We must instead determine the system’s particle size...
Acoustics makes possible measurement of Particle size of the emulsion and microemulsion droplets with no dilution, which is critical for these systems. Papers presented below indicate very good agreement between this method and independent data. Combination of Acoustics and Electroacoustics could reveal peculiar mechanisms controlling emulsion stability, such as ion exchange in water-in-oil emulsion.
Propagation of a longitudinal stress wave through a visco-elastic media creates dissipation of mechanical energy, similarly to a shear stress wave. The rate of dissipation depends on two parameters: bulk viscosity and longitudinal viscosity. For Newtonian
Acoustic theory for heterogeneous system should yield a relationship between some measured macroscopic acoustic properties, such as sound speed, attenuation, acoustic impedance, angular dependence of the scattered sound, etc., and some microscopic charact
Dewatering and Thickening of Municipal Sewage Sludge using the Decanter. Flottweg has more than 50 years of experience in dewatering and thickening sewage slurry. We know the special requirements of sewage treatment plants and the water industry. As a result, we have developed a special decanter series especially for sewage treatment plants: the Flottweg C series.
Both ultrasound based methods, Acoustics and Electroacoustics, can be used for monitoring effects of the plastisizer on the properties of cement slurry, as proved in the papers listed below. With no dilution. Elimination of dilution is critical for accurate measurement of the cement zeta potential Cement slurry could be affect very strongly by dilution. Zeta potential probe offers zeta potential measurement with precision 0.1 mV.
Unfortunately, the word calibration has ended up having two meanings; viz. to describe the use of a sound calibrator in connection with a measurement and to describe periodic verification which is carried out in a Calibration Laboratory.
Certain leisure activities, and motor sports in particular, are a source of elevated noise levels. They cause significant disturbance for nearby residents, particularly as such sites are being developed in increasingly densely populated urban areas.
Industrial sites are subject to regulations that limit sound and vibration levels at their perimeter and with regard to third parties. The taking of measurements at intervals remains one of the most frequently used methods of evaluating the noise and vibration levels of such sites.
Troy Acoustics Corporation and the multi-faceted designs and products it produces are well versed in the requirements of animal shelters for the purpose of reducing objectionable sounds from within the facility and minimizing their transference to locations outside and adjacent to the shelter building and grounds.
The field of building acoustics consists of two parts; Room Acoustics which deals with sound propagation in a room and Building Acoustics, which deals with sound propagation between rooms. Typically, room acoustics is related to the quality of sound, e.g. concert hall acoustics, while building acoustics is more related to unwanted sound, i.e. when you want to hear as little as possible of what is going on in adjacent rooms. From a measurement technology point of view, the two have a lot in common which shall be...
Roads, railways and airports are the largest source of transportation noise and frequently effects development land for houses, schools and hospitals. Noise sensitive developments adjacent to or affected by transportation noise require the careful assessment of these sources, either by measurement or prediction and often both. This assessment enables the correct specification of the building envelope (walls, windows, ventilators and roofs) to achieve appropriate internal noise levels in new developments. Here...
In the security market, Silixa offers a unique solution to monitor and protect your assets. Our distributed sensing systems are designed to maximize your ROI by providing multiple applications via a single installation in remote and hostile environments. Information is monitored at every metre along the entire cable length using Silixa’s proven and highest performing intelligent Distributed Acoustic Sensor (iDAS) and distributed temperature sensor (ULTIMA DTS) systems.
Dewesoft provides easy to use, yet advanced solutions for acoustics analysis. Sound Level Meter, Sound Power, Sound Intensity, Octave Band Analysis and Reverberation Time RT60 are just some applications that are covered. All test are performed according to international standards.