ultrasonic motor INTRODUCTION All of us know that motor is a machine which produces or imparts motion‚ or in detail it is an arrangement of coils and magnets that converts electric energy into mechanical energy and ultrasonic motors are the next generation motors. In 1980‚the world’s first ultrasonic motor was invented which utilizes the piezoelectric effect in the ultrasonic frequency range to provide its motive force resulting in a motor with unusually good low speed‚ high torque
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frequency does a participant’s visual acuity for a contrast sensitivity function display a peak performance across different sine – wave gratings. The ability to contrast sensitivity is useful in everyday life‚ more than people imagine. These contrast sensitivity functions focus primarily on the participants’ ability to detect accurately the presence of a sine – wave grating across different levels of contrast. The one way repeated participants design indicated there was a reliable effect of spatial
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LIFE SAVING EMBEDDED SYSTEM EARTHQUAKE DETECTION Submitted by P.A.Sathishkumar P.Athimuthu IInd CSE Chandy college of Engineering LIFE SAVING EMBEDDED SYSTEM Authors Names:P.ASathishkumar line 1:Anna university Triunelveli -Computer Science and Engineering line 2: Chandy college of Engineering line 3: Tuticorin‚India line 4: e-mail: paskcse@gmail.com Authors Names:Athimuthu line 1 : Anna university Triunelveli -Computer Science and Engineering line 2: Chandy college of Engineering
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reach the person. When the person is focused by the microwave beam‚ the reflected wave from the person’s body will be modulated or changed by his/her movements‚ which include breathing and heart beat. Simultaneously‚ reflected waves are also received from the collapsed structures. So‚ if these reflected waves from the immovable debris are cancelled and the reflected wave from the person’s body is properly distinguished‚ the breathing and heart beat signals can be detected
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E & H PLANE TEE MAGIC TEE PDF created with pdfFactory Pro trial version www.pdffactory.com Contents ü History ü What is Magic Tee ? ü Microwave T-junctions ü Two-port network ü E-plane tee ü H-plane tee ü MAGIC TEE (HYBRID TEE) ü Characteristics of magic tee ü Electric field pattern of magic tee ü Application of Magic Tee PDF created with pdfFactory Pro trial version www.pdffactory.com HISTORY Ø A magic tee is a four-port‚ 180 degree hybrid splitter‚ realized in waveguide. Ø Originally
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Wave Nature of Light Objective: The purpose of this lab is to investigate interference‚ otherwise known as the diffraction of light. A beam of light acts a wave‚ and we are able to use equations so calculate the wavelength of the light used. The diffraction of a straight edge demonstrates that light waves bend around straight edges‚ allowing light to enter an area of shadow. When waves are superposed‚ they reinforce each other when crests are in phase and cancel out when they are not in phase
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Closed Flue Pipe Experiment Abstract The wind instrument I will be researching in this experiment will be the pipe organ‚ commonly used in cathedrals and churches. Pipe organs produce sound by pushing pressurized air through a set of flue pipes. Flue pipes usually have a circular cross section and are mostly made of wood or metal. One pipe can only produce one pitch‚ so to produce a range of pitches an organ will have multiple sets of pipes called stops. Organs can have as little as 12 pipes
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emmanuel (ae8272) – hw07-Waves and vibrations – dickerson – (28763) This print-out should have 47 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 1 004 (part 4 of 6) 10.0 points What is its frequency? Correct answer: 6.1216 Hz. 001 (part 1 of 6) 10.0 points A spring with a spring constant of 50.3 N/m is attached to different masses‚ and the system is set in motion. What is its period for a mass of 2.8 kg? 1 = 6
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In Mathematics‚ a periodic function is a function that repeats its values in regular intervals or periods. Periodic functions are used throughout science to describe oscillations‚ waves‚ and other phenomena that exhibit periodicity. Periodic functions are those that repeat on a set interval. All trigonometric functions are periodic. They are useful because one can determine the value of the function anywhere in the domain. If a function is periodic‚ then there is some value n for which
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step to help stop the Wave. This article contained negative information about the Wave. On page 99 this is proved when it says‚ "She found Amy in the library and gave her a copy of the editorial to read. As Amy read‚ her mouth began to open wider and wider. Finally‚ she looked up at Laurie. What are you going to do with it? I’m publishing it in the paper‚ Laurie said. But you can’t say these things about the Wave‚ Amy said. Why not? Laurie asked. They’re true‚ Amy. The Wave has become an obsession
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