Courtesy: Pattern approval for measuring instruments Sound level meters Octave filters Personal noise dosimeters Measurement microphones Room acoustics
Tag Archives: demingcert
Courtesy: Pattern approval for measuring instruments eq = equivalent. Equivalent values are a form of time weighting that is easier to read on a display than the instantaneous sound level. If you look at these graphs of sound level over time, the area under the blue curve represents the energy. The horizontal red line drawn to […]
Courtesy: Pattern approval for measuring instruments The second letter indicates the frequency weighting. “Pattern approved” sound level meters typically offer noise measurements with A, C and Z frequency weighting. Z-weighting represents the sound pressure equally at all frequencies. A-weighting, weights lower and higher frequencies much less, and has a slight boost in the mid-range, representing the sensitivity […]
Courtesy: Pattern approval for measuring instruments Personal noise dosimeter A common variant of the sound level meter is a noise dosemeter (dosimeter in American English). However, this is now formally known as a personal sound exposure meter (PSEM) and has its own international standard IEC 61252:1993. A noise dosimeter (American) or noise dosemeter (British) is a specialized sound level meter intended […]
Courtesy: Pattern approval for measuring instruments The usage of an ultrasonic thickness gauge for non-destructive testing to check material properties such as thickness measurement, is regular in all areas of industrial measurements. The ability to gauge thickness measurement without requiring access to both sides of the test piece, offers this technology a multitude of possible […]
Courtesy: Pattern approval for measuring instruments The Measuring Instruments Directive 2014/32/EU (the information is not updated and below this article refers to the old one 2004/22/EC), is a directive by the European Union, which seeks to harmonise many aspects of legal metrology across all member states of the EU. Its most prominent tenet is that all kinds of meters which receive […]
Courtesy: Pattern approval for measuring instruments
Courtesy: Pattern approval for measuring instruments A measuring instrument is a device to measure a physical quantity. In the physical sciences, quality assurance, and engineering, measurement is the activity of obtaining and comparing physical quantities of real-world objects and events. Established standard objects and events are used as units, and the process of measurement gives a number relating the item under study and the referenced unit of measurement. Measuring instruments, and […]
Courtesy: pas 2060 carbon neutrality On 19 April 2007, Prime Minister Jens Stoltenberg announced to the Labour Party annual congress that Norway’s greenhouse gas emissions would be cut by 10 percent more than its Kyoto commitment by 2012, and that the government had agreed to achieve emission cuts of 30% by 2020. He also proposed that Norway should become carbon neutral by […]
Courtesy: pas 2060 carbon neutrality The EU has intermediate targets and in 2019 the bloc, with the exception of Poland, agreed to set a 2050 target for carbon neutrality. The European Union has become the first area to embrace climate neutrality by 2050 through the European Green Deal, being committed to forming Green Alliances with partner […]