Download or read book Acoustics Measurement of Airborne Noise Emitted By Construction Equipment Intended for Outdoor Use Method for Determining Compliance With Noise Limits written by SLTC - Earth Moving Machinery Sound Level and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Standard describes a method for measuring the weighted sound pressure levels at prescribed microphone positions in the proximity of a device or machine for outdoor use, in order to determine compliance with noise limits. The A-weighted sound power level of the source is calculated from the measured values. NOTES:1. When nine or more microphone positions are prescribed in the proximity of the source (as in Section 7), the A-weighted sound power levels determined in accordance with this document tend to result in standard deviations less than approximately 2 dB, provided that the spectrum does not contain pronounced discrete frequencies; if it does, the magnitude of the uncertainties will be larger and no general rules for the magnitude of the uncertainties can be given. These standard deviations reflect the cumulative effects of all causes of measurement uncertainty, excluding variations in the sound power level from machine to machine or from test to test, which may be caused, for example, by changes in the mounting or operating conditions of the source. 2. For measurements made using a hemispherical measurement suface, the directivity index of the source may be calculated according to the description of appendix B. 3. Measurement of A-weighted sound pressure levels at the operator's postion(s) is not described in this document. 4. The results of noise measurements made according to this document are obtained under prescribed conditions and iwll not necessarily correspond to the noise experienced from the equipment when it is in operation on a construction site.

Download or read book Reference Data for Engineers written by Mac E. Van Valkenburg and published by Elsevier. This book was released on 2001-10-19 with total page 1689 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reference Data for Engineers is the most respected, reliable, and indispensable reference tool for technical professionals around the globe. Written by professionals for professionals, this book is a complete reference for engineers, covering a broad range of topics. It is the combined effort of 96 engineers, scientists, educators, and other recognized specialists in the fields of electronics, radio, computer, and communications technology. By providing an abundance of information on essential, need-to-know topics without heavy emphasis on complicated mathematics, Reference Data for Engineers is an absolute "must-have" for every engineer who requires comprehensive electrical, electronics, and communications data at his or her fingertips. Featured in the Ninth Edition is updated coverage on intellectual property and patents, probability and design, antennas, power electronics, rectifiers, power supplies, and properties of materials. Useful information on units, constants and conversion factors, active filter design, antennas, integrated circuits, surface acoustic wave design, and digital signal processing is also included. The Ninth Edition also offers new knowledge in the fields of satellite technology, space communication, microwave science, telecommunication, global positioning systems, frequency data, and radar. * Widely acclaimed as the most practical reference ever published for a wide range of electronics and computer professionals, from technicians through post-graduate engineers. * Provides a great way to learn or review the basics of various technologies, with a minimum of tables, equations, and other heavy math.

Download or read book Instrumentation Reference Book written by Walt Boyes and published by Butterworth-Heinemann. This book was released on 2009-11-25 with total page 929 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discipline of instrumentation has grown appreciably in recent years because of advances in sensor technology and in the interconnectivity of sensors, computers and control systems. This 4e of the Instrumentation Reference Book embraces the equipment and systems used to detect, track and store data related to physical, chemical, electrical, thermal and mechanical properties of materials, systems and operations. While traditionally a key area within mechanical and industrial engineering, understanding this greater and more complex use of sensing and monitoring controls and systems is essential for a wide variety of engineering areas--from manufacturing to chemical processing to aerospace operations to even the everyday automobile. In turn, this has meant that the automation of manufacturing, process industries, and even building and infrastructure construction has been improved dramatically. And now with remote wireless instrumentation, heretofore inaccessible or widely dispersed operations and procedures can be automatically monitored and controlled. This already well-established reference work will reflect these dramatic changes with improved and expanded coverage of the traditional domains of instrumentation as well as the cutting-edge areas of digital integration of complex sensor/control systems. Thoroughly revised, with up-to-date coverage of wireless sensors and systems, as well as nanotechnologies role in the evolution of sensor technology Latest information on new sensor equipment, new measurement standards, and new software for embedded control systems, networking and automated control Three entirely new sections on Controllers, Actuators and Final Control Elements; Manufacturing Execution Systems; and Automation Knowledge Base Up-dated and expanded references and critical standards

Download or read book A Comparison of Sound Power Levels from Portable Air Compressors Based Upon Test Methodologies Adopted by U S EPA and the CEC written by and published by . This book was released on 1980 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book 1976 Reassessment of Noise Concerns of Other Nations Summary and selected topics written by United States. Office of Noise Abatement and Control and published by . This book was released on 1976 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Noise and Vibration Control Engineering written by István L. Vér and published by John Wiley & Sons. This book was released on 2005-11-11 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt: Noise and Vibration Control Engineering: Principles and Applications, Second Edition is the updated revision of the classic reference containing the most important noise control design information in a single volume of manageable size. Specific content updates include completely revised material on noise and vibration standards, updated information on active noise/vibration control, and the applications of these topics to heating, ventilating, and air conditioning.

Download or read book GB 26545 2011 Translated English of Chinese Standard GB 26545 2011 GB26545 2011 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-08-01 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the safety requirements for the design, manufacture, use and maintenance of drill rigs, mainly involving the important operational safety and ergonomics of drill rigs. This Standard applies to drill rigs, including casing, for surface and underground hole formation in building, tunnels, railways, roads, hydropower stations and water conservancy projects. Note: This Standard includes the major hazards of drill rigs under the conditions of intended use and foreseeable by the manufacturer. However, this Standard does not include all mechanical, electrical, hydraulic, pneumatic and other device hazards, nor does it include all hazards involved in general standards. Hazards not included in this Standard shall be subject to the relevant provisions of GB/T 15706.1 and GB/T 15706.2. The drill rigs to which this Standard applies mainly has the following characteristics: a) There are three types of drilling methods: impact, rotary and rotary impact; b) Chassis types include fixed, towed and self-propelled; c) Mainly used to form pile holes, anchor holes, blasting holes and drainage holes, etc. Specifically including the following models: ● Drill rigs for pile formation, mainly including impact drill rigs, rotary drill rigs, long spiral drill rigs, forward/reverse circulation drill rigs, swing/rotary casing drill rigs, pile top drill rigs, down-the-hole hammer rock drill rigs, etc.; ● Drill rigs for anchoring, mainly rotary and rotary impact drill rigs; ● Drill rigs for blasting holes, mainly including rock drills (cars), down-the-hole drills, rotary drills, etc.; ● Drill rigs for other purposes, including rotary spindle drill rigs, rotary and rotary impact drill rigs for surface/underground drilling, forward/reverse circulation drill rigs, horizontal directional drill rigs, etc.; GB 26545-2011 www.ChineseStandard.net  Buy True-PDF  Auto-delivery. Page 6 of 85 d) Casing or drilling fluid may be used to stabilize the drill hole. Self-propelled drill r...

Download or read book EPA 550 9 written by and published by . This book was released on 1976 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reference Data for Engineers written by and published by . This book was released on 1993 with total page 1544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acoustics Vibration and Shock written by International Organization for Standardization and published by . This book was released on 1985 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acoustics Measurement of Exterior Noise Emitted By Earthmoving Machinery Dynamic Test Conditions written by SLTC - Earth Moving Machinery Sound Level and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Standard describes a method for determining the noise emitted to the environment by earthmoving machinery in terms of the A-weighted sound power level while the machine is working under dynamic test conditions. This SAE Standard is special test code for specific types of earthmoving machinery. It is an extension of SAE J2101/ISO 4872, which contains the general requirements for construction equipment. A simulated dynamic rath than an actual work cycle test condition is chosen. Dynamic test conditions provide acceptable noise emission data, which are repeatable and representative. Actual work cycle tests are complex and repeatability can be a problem Specific procedures are described in this document to enable the sound power emission in dynamic test conditions to be determined in a manner that is repeatable. Attachments (bucket, dozer, etc.) for the manufacturer's production version are to be fitted since this is the configuration most likely to exist when the machine is in actual use. This document enables compliance with noise limits to be determined. It can also be used for evaluation purposes in noise reduction investigation. An additional special test code is given in SAE J2105/ISO 6396.2. This other special test code is intended to be used to determine the noise emitted by earthmoving machiner, with the machine in dynamic test conditions, measured at the operator's position in terms of the equivalent continuous A-weighted sound pressure level. Corresponding measurements of noise emitted to the environment and noise at the operator's position under stationary test conditions are described in SAE J2102/ISO 6393 and SAE J2103/ISO 6394, respectively.

Download or read book ISO Catalogue written by International Organization for Standardization and published by . This book was released on 2007 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Encyclopaedia of Occupational Health and Safety written by Jeanne Mager Stellman and published by International Labour Organization. This book was released on 1998 with total page 1232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revised and expanded, this edition provides comprehensive coverage of occupational health and safety. A new CD-ROM version is available which provides the benefits of computer-assisted search capabilities

Download or read book Catalogue written by International Organization for Standardization and published by . This book was released on 2008 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Early Years 4 Stroke Engines Make Their Debut written by Jay Meldrum and published by SAE International. This book was released on 2016-12-22 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This collection is a resource for studying the history of the evolving technologies that have contributed to snowmobiles becoming cleaner and quieter machines. Papers address design for a snowmobile using E10 gasoline (10% ethanol mixed with pump gasoline). Performance technologies that are presented include: • Engine Design: application of the four-stroke engine • Applications to address both engine and track noise • Exhaust After-treatment to reduce emissions The SAE International Clean Snowmobile Challenge (CSC) program is an engineering design competition. The program provides undergraduate and graduate students the opportunity to enhance their engineering design and project management skills by reengineering a snowmobile to reduce emissions and noise. The competition includes internal combustion engine categories that address both gasoline and diesel, as well as the zero emissions category in which range and draw bar performance are measured. The goal of the competition is designing a cleaner and quieter snowmobile. The competitors’ modified snowmobiles are also expected to be cost-effective and comfortable for the operator to drive.

Download or read book The Journal of the Acoustical Society of America written by Acoustical Society of America and published by . This book was released on 2001 with total page 1300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acoustics Measurement of Airborne Noise Emitted By Earthmoving Machinery Method for Determining Compliance With Limits for Exterior Noise Stationary Test Condition written by SLTC - Earth Moving Machinery Sound Level and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Standard describes a method for determining the exterior noise emitted by earthmoving machinery in terms of the A-weighted sound power level while the machine is in a stationary test condition. At six positions on a hemispherical surface, the equivalent continuous A-weighted sound pressure levels are measured. The A-weighted sound power level of the machinery is calculated from the measured values.