An interdigital transducer printed on a piezoelectric substrate is used to excite saws, as in. Ultrasonic motor tulatiny ultrasonic linear actuator 1 in general, actuators in mainstream use are electromagnetic and fluid air and oil pressure types, but in recent years, ultrasonic motors have appeared as a completely new trend. Ultrasonic sensor working applications and advantages. An ultrasonic focus motor is much quieter almost nearsilent and also moves the focus lens or ring faster when compared to a standard motor. An ultrasonic motor is a type of electric motor powered by the ultrasonic vibration of a component, the stator, placed against another component, the rotor or slider depending on the scheme of operation rotation or linear translation. They were previously used in the industrial field, but they. Get more information about ultrasonic motor pdf ppt by visiting this link. Ultrasonic motor usm an ultrasonic motor is driven by the vibration of piezoelectric elements and produces force. It induces a rotors axial rigid vibration, which in turn affects the contact state and arouses speed. As shown in figure 2, the rotor was pressed against two horns placed at different locations.
Slider of a linear ultrasonic traveling wave motor figure 1. The picture shows the linear piezo stepper motor or inchworm motor instead of a possibly ultrasonic travelling wave motor. Ultrasonic surgical devices typically operate at frequencies between 20 khz and 60 khz and have application in many surgical specialties including neurosurgery and general surgery. High order curling vibration is generated on the surface of the elastic vibrator stator and travelling eaves are made by excitation of the piezoceramic vibrator. Piezoelectric ultrasonic motors are a new type of actuator.
Ultrasonic motor construction tends to be simpler than em type. The stator of an ultrasonic motor that is excited by piezoelectric elements in ultrasonic frequency range develops different kinds of vibrations depending on its structure. Piezoelectric ultrasonic motors jorg wallaschek, 1995. Complete modeling of rotary ultrasonic motors actuated by. Controlling a servo motor using an ultrasonic sensor and. The general characteristic of usms makes them attractive for robotic applications where small, intermittent motions are required. I can kind of envisage a travelling wave motor, but its operating principles are not described in this article at all. In general we are aware of the fact that the motive force is given by the electromagnetic field in the conventional motors. If the object is farther than 10 inches, have the program stop. In 1980,the worlds 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 and power to weight characteristics. And the certain pressure causes the slider to propagate on stator by the friction between them. A usm is able to hold the lens in place with precision and accuracy at the exact instant the lens arrives at the correct focus when using the cameras auto focus af feature. The name of an ultrasonic motor was named from the frequency of the voltage that is exceeding peoples audible sound region. The mechanism, the travelingwave ultrasonic motor twusm was invented by t.
These are operated using ultrasonic vibrations to obtain a driving force, which then. Ultrasonic motor usm is an actuator that converts characteristic vibration resonance of several. Ultrasonic motors made with piezoelectric crystal whose efficiency is insensitive to size are superior in the mini motor area. Ultrasonic motor construction tends to be simpler than em type motors. Speed sensors are machines used to detect the speed of an object, usually a transport vehicle. Performance and applications of l1b2 ultrasonic motors mdpi. Motor device that converts electrical energy to mechanical energy. Similary the other one acts as a microphone for receiving the sound pulses which are reflected after the collison of. Also explore the seminar topics paper on ultrasonic motor with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2015 2016. Appropriate motor control strategy is an important prerequisite for promoting the wider application of ultrasonic motors. This is the driving principle of the ultrasonic motor.
The working principle of ultrasonic motor is shown in figure. The motor is first type of the present ultrasonic motor. The operation of ultrasonic motor is characterized by obvious nonlinearity. Echo pin produces a pulse when the reflected signal is received. The practical ultrasonic motor was proposed firstly by h v barth of ibm in 1973. This book provides a completely uptodate survey of the many different types of ultrasonic motors currently in use. Further, the vibrator is composed of a piezoelectric driving. Motor is a device that converts electrical energy to mechanical energy. Piezoelectric ultrasonic motors offer important advantages for motion. Ultrasonic motor usm a pressure applied across a pair of opposite faces of a crystal, results in a pd developed across the other pair. Ultrasonic motor, piezo motors, ultrasonic piezo motor positioning. Takano, a novel ultrasonic motor with a builtin clutch mechanism for a forcefeedback actuator.
The amplification and micro deformations of active material are utilized for generation of the mechanical motion. Tekceleo has developed a range of ultrasonic motors or. The primary goal of this sensor will be to monitor user presence by. Motor speed range below the rated torque shorttime use range. They are characterized by high torque at low rotational speed, simple mechanical design and good. Ultrasonic sensor provides an easy way in distance measurement. Driving principles and motor characteristics are described in comparison with the conventional ultrasonic motors. Ultrasonic motor rotates using modification when voltage is applied to piezoelectric ceramics. Pid controller is widely used in motor motion control products. A travelingwave ultrasonic motor uses surface acoustic waves saws at very high frequency in tens of megahertz kurosawa et al. They comprise a stationary resonator, which is excited to produce mechanical oscillations in the ultrasonic frequency range, and a passive rotor. The following image shows the circuit diagram of the smart dustbin using arduino.
Pdf on jan 1, 2003, serra cagatay and others published ultrasonic motors find, read and cite all the research you need on researchgate. Besides those discussed in previous chapters, there are many other new types being studied, including a noncontact type ultrasonic motor, a piezoelectric motor using clutch, a linear surface acoustic wave motor, a vacuum type ultrasonic motor, an impact type ultrasonic motor and so on. A wellknown exampleof an application of a usm technologyis depicted in fig. Kerr issue 1 january 4, 2011 abstract many lenses in canons ef series have autofocus drive systems described as ultrasonic motor usm systems. In this work the term usm will be used for the motor only power electronics. Piezoelectric ultrasonic motor technology and applications. Ultrasonic sensor consists of two transducers one is act as a speaker which converts the electrical pulses into sound pulses and then emit them with high frequency almost 40khz. Study on spherical stator for multidegreeoffreedom ultrasonic motor shuta nakajima 1, hidekazu kajiwara, manabu aoyagi, hideki tamura2, and takehiro takano2 1graduate school of engineering, muroran institute of technology, muroran, hokkaido 0508585, japan 2information and communication engineering, tohoku institute of technology, sendai 9828577, japan. If you havent used or experimented before with the ultrasonic sensor, i would suggest you to get familiar.
Vcc is the power supply for hcsr04 ultrasonic distance sensor which we connect the 5v pin on the arduino trig trigger pin is used to trigger the ultrasonic sound pulses. Ultrasonic motors are characterized by the absence of dissonance during operation, high torque weight ratio, highly exact speed and location control etc. There are two power transformations involved in the running of ultrasonic motors. Ultrasonic motor pdf piezoelectricity electric motor. Explore ultrasonic motor with free download of seminar report and ppt in pdf and doc format. Blind from the eyes but the vision is sharper than humans, ultrasonic ranging is the technique used by bats. Abstract ultrasonic motors are characterized by the absence of noise during operation, high torque weight ratio, highly accurate speed and position control etc. Design optimization of double ring rotary type ultrasonic.
The advantages of ultrasonic motors make them open to a wide range of applications and technologies. An introduction to ultrasonic motors toshiiku sashida. Ultrasonic piezomotors dispense with the mechanical complexity of classical rotary motor gearleadscrew combinations in favor of costs and reliability. Electromagnetism has always been the driving force behind electric motor technology. Thus we can say that the general principle of operation of ultrasonic motors is to generate gross mechanical motion through the amplification and repetition of micro deformations of the active material. Ultrasonic sensor and servo motor are connected to respective pins of arduino.
Following the historical background, four ultrasonic motors recently developed at penn state university are introduced. The ultrasonic motor, invented in 1980, utilizes the piezoelectric effect in the ultrasonic frequency range to provide its motive force, resulting in a motor with unusually good lowspeed, hightorque and powertoweight characteristics. Study on spherical stator for multidegreeoffreedom. What made ultrasonic motors so ground breaking in the 1970s and early 1980s was the ability to create a motor that is extremely small, compact and virtually silent, with out sacrificing torque. Preparation and performance test of soldered stators of. The vibration principle for this type of motor is explained in detail by berg 2001, 5.
Ultrasonic motor seminar report with ppt and pdf bidirectional motor. In addition to the use of the principle in lenses, canon also offers a. Ultrasonic motors usms belong to the class of piezoelectric motors. Tekceleopatented wavelling piezomotors technology uses piezoelectric or ultrasonic progressive wave principle. It is a very simple design as the project involves only two. This finishes up the build process of the smart dustbin. Aug 11, 2014 the stator of an ultrasonic motor that is excited by piezoelectric elements in ultrasonic frequency range develops different kinds of vibrations depending on its structure. The soldered stators can generate a b 09 mode shape which is required by the trum60 ultrasonic motor. Due to the nonlinearity of the ultrasonic motor, the pid control parameter values that can achieve good performance are very. Ultrasonic motors represent an alternative to the conventional electromagnetic motor principle.
The toothslot transition creates an axial excitation on traveling wave ultrasonic motors. Ultrasonic motor eee engineering seminar report,pdf,ppt,doc. Ultrasonic motor seminar report, ppt, pdf for ece students. An ultrasonic horn also known as acoustic horn, sonotrode, acoustic waveguide, ultrasonic probe is a tapering metal bar commonly used for augmenting the oscillation displacement amplitude provided by an ultrasonic transducer operating at the low end of the ultrasonic frequency spectrum commonly between 15 and 100 khz. The motor operate at low voltage and achieve the rotation speed up to 2500 rpm at 15 v. As the ultrasonic motor uses ultrasonic vibrations as its driving force,it comprises a stator which is a piezoceramic material with an elastic body attached to it,and a rotor to generate ultrasonic vibrations. So yes, im going to divide the whole making into 4 parts connections of ultrasonic sensor connections of l298n code testing. The canon usm ultrasonic motor autofocus drive system douglas a. Ts fuzzy control of travellingwave ultrasonic motor.
The operation of the usm changes the rotor or linear translator. Piezo inertia drives inertia drives are spacesaving and lowcost piezobased drives with relatively high holding forces and a travel range that is only limited by the length of the runner. The estimation of ultrasonic motor characteristics as a function of input parameters, such as the voltage amplitude and driving frequency and as a function of operating conditions, such as load torque and temperature is so important for control of. Ultrasonic motor seminar report, ppt, pdf for electrical. An ultrasonic motor that converts input electrical energy to. Keywords ultrasonic motor, stepping characteristics, pulse number control, synchronous acquisition system, precise positioning 1 introduction piezoelectric motors use inverse piezoelectric effect to convert electrical energy into mechanical energy. Using the hcsr04 ultrasonic distance sensor with arduino everything you need to know. A wide variety of ultrasonic vibration micro motor options are available to you, such as car, home appliance. The ultrasonic motor has a novel design included additional alumina ringbooster. In figure 1 the principle of operation of an ultrasonic motor flexural traveling wave ringtype motor is shown as an. Please help improve this article by adding citations to reliable sources.
What im trying to achieve is simple, to run 2 dc motors with an ultrasonic sensor to detect obstacles and change direction. Usr30s3 is the single shaft motor, user can save the space of motor. These motors transfer motion through friction, which is why their. Ultrasonic motor product introductionfor general environment motor. Because this motor is contained in the case, its solidity is high, and a cable is an attachmentanddetachment type by a connector. From the way of creating an elliptical motion on the stator, ultrasonic motors were classified into two major groups, such as standing wave and traveling wave types. An ultrasonic motor is a type of electric motor formed from the ultrasonic vibration of a component, the stator, placed against another, the rotor or slider depending on the scheme of operation rotation or linear translation. An ultrasonic mot or is a type of elect ric mo tor powered b y the ultras onic vibration of a component, the stator, placed against another component, the rotor or slider depending on the scheme of operation rotation or linear transl ation. We have provided ultrasonic motor seminar and ppt with pdf report.
These propagate in the air at the velocity of sound. The stator of the usm consists of piezoelectric ceramics for generating vibration, a metal of the stator for amplifying the generated vibration and a friction material for making contact with the rotor. Moreover, the coincidence of the two phase modal frequencies of soldered stators can fully meet the requirement of ultrasonic motors and there is no interference frequency near the operating modal frequency around 40 khz. It consists of a stator, a rotating rotor and an output ring. An ultrasonic motor is a type of electric motor formed from the ultrasonic vibration of a component, the stator, placed against another, the rotor or slider depending on the scheme of operation. As the ultrasonic motor uses ultrasonic vibrations as its driving force,it. Fewer assembly parts mean fewer moving parts and consequently less wear. Ultrasonic sensor hcsr04 generic sg90 microservo motor. Electromagnetic motors current carrying conductor kept in a magnetic field experiences a force or torque faradays law of emi. Fem simulation of the stator of the newly developed ultrasonic piezo motor fig. These motors, which use ultrasonic vibrations to produce a frictional driving force, have many attractive features, including simple structures which can easily be miniaturized, large power to weight ratios, high torque at low speed, high precision due to low inertia and easy. Numerical simulation and experimental investigation were performed and operation principle described as well. By exciting one of the horns, the rotor was driven in one direction, and by exciting the other horn, the rotation direction was reversed. Research article ning chen analysis and control of micro.
Motor speed range from rated to maximum torque 05 usr60s series is a basic type model that is highly rugged because it is housed in a case,allowing cable attachment and detachment. Ultrasonic motor powerpoint pdf linkedin slideshare. Ultrasonic motors cannot provide the unlimited resolution of linear piezo actuators and flexureguided piezo positioning stages. Problem with running 2 dc motors with ultrasonic sensor. This ultrasonic motor is used in a camera lens for autofocusing. Nov 15, 2015 an ultrasonic motor is a type of electric motor formed from the ultrasonic vibration of a component, the stator, placed against another, the rotor or slider depending on the scheme of operation rotation or linear translation. The length of the pulse is proportional to the time it took for the transmitted signal to be detected. This technology offers a high powertoweight ratio combined with high efficiency for ultrasonic motors or piezoelectric motor. Distance sensing with ultrasonic sensor and arduino. A guide to ultrasonic sensor set up and testing instructions, limitations, and sample applications executive summary this paper will discuss the implementations and limitations of an ultrasonic sensor. The number of components required to construct an usm is small thereby minimizing the number of potential failure points.
Ultrasonic motor, piezo motors, ultrasonic piezo motor. The flexible ultrasonic motor prototype achieved a translation at a speed of 120 mms and demonstrated a force of 0. There are many types of motors based on the piezoelectric effect also called piezoelectric motors. This introduction to the general theory of the ultrasonic motor was written by the motor s inventor and an expert in conventional electric motors.