"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...
Cement manufacturing has an impact on the environment at every stage of the manufacturing process. Airborne pollutants are released in the form of dust, gases, noise, and vibration when operating machinery and during blasting in quarries. Technologies to reduce dust emissions during the quarrying and manufacture of cement are widely used, as are technologies to trap and separate exhaust gases.
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.
Overexposure to occupational vibration from power tools and vibrating machinery can impact the human body in several ways and cause permanent damage. The UK Health and Safety Executive estimates there could be between 2 million people at risk of suffering
In a world where there is a drive for everything to be quieter, vehicle noise measurement and control is a growing application. If measurements need to be made to ISO 5130:2007, which is an internationally recognised standard for vehicle exhaust noise testing, a more detailed measurement needs to be made. ISO 5130:2007 requires three consecutive measurements to ensure repeatability. These measurements are taken at a specified engine speed, or RPM, and the maximum sound level produced during the test is taken.
The noise from vehicles such as cars, buses and trucks is wide spread with many people being affected by these noise sources in their daily lives. All modern vehicles will be designed to meet strict safety and emissions standards as well as noise output levels. All vehicles sold in the EU must comply with a range of noise directives to ensure that they meet these specified noise levels when they are sold and many countries enforce regular checks over the life of the vehicle. Motor Sport noise is a often a source...
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.
In a process unique to the mining industry, mineral ore must be extracted and conveyed to a means of transportation in a challenging environment. This involves the use of high-power fixed and mobile equipment with complex kinematics. The entire process is carried out in cyclic and variable operating conditions with significant safety and accessibility constraints. Mining operations are also a source of noise and vibration pollution both for site workers and people in the surrounding area.
What is the difference between sound and noise? Clearly more than the loudness only. Although an aircraft is very noisy, a mosquito at night-time can be more than enough to spoil a good night`s sleep. Instead of looking at the loudness only as a criterion for the degree of noisiness, we shall simply regard noise as what it is - viz. unwanted sound.
Vibration is simply defined as the variation of an object about a fixed position. To properly define and quantify the physical characteristics of vibration, however, is much more complex - account must be taken of the direction, frequency and magnitude of vibration. Then, what properties should be measured? Is it appropriate to measure the displacement of the vibrating object as a measure of its amplitude, or should we instead measure velocity, or acceleration? What are the conventions for measuring direction,...
Vibration is simply defined as the variation of an object about a fixed position. To properly define and quantify the physical characteristics of vibration, however, is much more complex – account must be taken of the direction, frequency and magnitude of vibration. Then, what properties should be measured? Is it appropriate to measure the displacement of the vibrating object as a measure of its amplitude, or should we instead measure velocity, or acceleration? What are the conventions for measuring direction...
The nuclear industry must increase the availability and reliability of its power stations whilst ensuring that a high level of safety is maintained. The principal weak points in achieving this objective are the industry`s systems and components.
Noise has become the primary source of environmental disturbance. In 2002, the European Union took decisive action in the form of directive 2002/49/CE relating to the assessment and management of environmental noise. Through the use of strategic noise mapping, every urban community must implement an action plan to combat noise pollution. The monitoring of noise levels in urban environments is therefore an essential factor.
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.
As a major source of renewable energy, wind turbines are continuing to experience exponential growth, with a production capacity that is doubling every three years. Reliability and the optimisation of maintenance have become major economic challenges for wind turbine operators.
Traffic noise impacts millions of people at home and at work. Traffic noise can impact your ability to work, learn rest, play, relax, and sleep. This form of noise can also lead to mental and physical health concerns. The noise is dependent upon such issues as: Traffic volume. Traffic Speed. Vehicle Content. Road Surface. Surrounding Area.
State of the art noise monitoring systems; Modern noise monitoring systems offer a wide range of advanced features and come with software that can analyze and structure long term measurements data efficiently. A complete noise monitoring system consists of one or more noise monitoring terminals, a noise server and work stations for presentation, post processing and reporting.
Industrial hygiene is separated into two main applications - Noise at Work and Human Vibration. Norsonic has during the past year expanded the product portfolio to cover both applications. By close cooperation with our customers and health and safety research institutes we have designed a carefully balanced selection of measuring tools and application software that covers both the vibration and noise domain.