Applications and experience with a portable microcomputer system controller and programmable sound level meter/frequency analyzer
نویسندگان
چکیده
منابع مشابه
design portable pneumatic branch shaker with programmable logic controller
a portable and light pneumatic branch shake system was designed and manufactured in this research for harvesting fruits that can be harvested by shaking branch. required air flow and electric current are provided for operating system from category containing electrical generator and air compressor on wheelbarrows and portable chassis. vibration is equipped by programmable logic controller (plc)...
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supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...
15 صفحه اولProgrammable Logic Controller and Its Applications
ABSTARCT: Since the industrial revolution took place in 18th century, various improvements have been done in the sector of industry. The sole principle behind it was to reduce the human efforts by means of automation. A Programmable Logic Controller(PLC) has created a huge impact in the field of automation because of its exceptional capabilities. It has transformed the industry into a new era a...
متن کاملSound pressure level generated by individual portable sound equipment.
INTRODUCTION The use of Personal Digital Audio Players can cause hearing injuries, as the sound is generated directly in the ear canal. It is believed that different types of headphones can cause different amplifications, since they cause changes in the volume and resonance of the ear canal according to their depth. OBJECTIVE This study aimed to determine the sound pressure to which young ind...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1984
ISSN: 0001-4966
DOI: 10.1121/1.2021494