Published January 2005
by American Society of Mechanical Engineers .
Written in English
|The Physical Object|
|Number of Pages||18|
The measurement of Peak sound pressure levels is required by the UK Noise at Work regulations where it is C-weighted. In this case, the value would be written as LCPeak = dB. & Octave Band Filters When detailed information about a complex sound is needed, theFile Size: KB. SOUND LEVEL METERS The primary tool for noise measurement is the Sound Level Meter (SLM). The compromises with sound level meters are between accuracy, features and cost. The precision of a meter is quantified by its type (see standards IEC , or ANSI S for more details). This guide covers the measurement of outdoor sound due to a fixed sound source such as a siren, stationary pump, power plant, or music amphitheater. Procedures characterize the location, sound level, spectral content, and temporal characteristics of that sound source at the time of measurement. The book is primarily intended to cover all necessary topics of instrumentation and measurement for students of electrical engineering, but can also serve as a reference for engineers and practitioners to expand or refresh their knowledge in this field.
Acoustics — Determination of sound power levels of noise from air terminal devices, high/low velocity/pressure assemblies, dampers and valves by measurement . Canada was one of the first countries to issue an occupational noise measurement standard (in ). whereby workplace noise exposures found in industrial settings must be measured in accordance with CAN/CSA Standard Z, Procedures for the Measurement of Occupational Noise Exposure. exercise sound professional judgment in using any of the information presented in a particular application. and Density Measurement () • Industrial Flow Measurement He is the author of two books: Measure-ment and Control Basics, 3 rd Edition, (). Industrial Moisture and Humidity Measurement. Editor(s): Roland Wernecke as well as trace amounts, in solids, liquids, or gases. There are many applications where trace moisture measurements are indispensable for manufacturing and for process quality assurance. this practical book serves the needs of those working in the industry tasked.
book, we will consider some of the techniques that may be used by the engineer in reduction of noise from existing equipment and in design of a quieter product, in the case of new equipment. We will begin with an introduction to the basic concepts of acoustics and acoustic measurement. It is important for the engineer to understand. In addition, the spatial variation of sound pressure (i.e., the sound field) associated with a sound source is often complicated by the presence of sound-reflecting obstacles or walls. In addition, there is a brief discussion on velocity of instrumentation for the measurement of sound . This Code provides measurement procedures in a variety of acoustical environments, including settings influenced by background or extraneous noise. Sound pressure level measurements or sound intensity measurements obtained using the procedures of this Code may be used to calculate sound power level. above it. Sound pressure is measured at specified points on the measurement surfaces defined in the standards, and the surface Quantifying Acoustic Sources Through Sound Power Measurements L (1) W W = Ê ËÁ ˆ - ¯˜ 10 10 10 12 log dB re 1 pW Andrew R. Barnard, Michigan Technological University, Houghton, Michigan Figure 1. Schematic of a.