How do i affix the mechanical wave driver on a double rod that will have a greater rigidity to prevent the oscillation of the support for the mechanical wave. Analysis of vibrating plates with acoustic holography and. Our mechanical wave driver is dynamically designed to vary amplitude and drive any wave experiment at specified frequencies. Development of dynamic simulators using pasco models. The photographs which follow show the results of some of these experiments. A digital function generator powers the wave driver. When one of the rods is pulled aside and released, the rod of corresponding length is excited into visible motion, but the other rods remain apparently stationary. The easiest way to do this is with the external stereo amplifier.
You will need a waveform generator with an amplifier capable of producing current up to 1. Pdf optical microscale mapping of dynamic biomechanical. Instruction sheet for the pasco model wa9607 chladni plates kit. Liang and boppart 2010 used an oct system and observed the skin deformation with a mechanical wave driver, sf9324 pasco scientific, roseville, ca. He called this field of research cymatics from the greek, kyma the wave, ta kymatika matters pertaining the waves, wave matters. Dec 17, 2015 the vibration setup was assembled in four parts. You will need a waveform generator with an amplifier. It has a maximum current load of 1 a which puts a limit on the driving amplitude. Sf9324 01203177h mechanical wave driver 2 you can attach a wire or string to the mechanical wave driver using one of the included connectors string holder with plug or slotted string holder with plug. In the 1960s, the swiss scientist hans jenny conducted a. And the chladni plates operate best with one that provides a wide range of frequencies. On class web page you will find instruction sheet on wave driver sf 9324 introduction.
Mechanical wave driver for chladni plate mechanical wave. Once torsion has taken place at one end, a transverse mechanical wave will be produced in the form of a spiral curve advancing towards the other end as shown in the figure well, an animated gif would better indicate this. Mechanical wave driver sf9324, digital function generator pi9587c. Development of dynamic simulators using pasco models equipped. Replacement components for flat coupon adapter or stressstrain appartus. The sf9324 variable frequency mechanical wave drive lets you drive wave experiments with ease and accuracy.
Lab 9 summary covers the mechanical waves lab phys 215. The driving waveform was programmed and synchronized with the image acquisition. Pasco sf9324 variable frequency mechanical wave driver, pasco pi9587b digital frequency generator, table rod, elastic string, table clamp with pulley, set of 50g and 100gmasses with mass holder, meter stick. Meter stick 1 wave driver wa9753 or sf 9324 1 patch cords se9750 2 important instructions. For instance, pasco scientific offers the following models. Pasco waves and sound mechanical wave driver sf 9324. A recent scan through diy cymatics journal of cymatics posts highlighted the pasco waves and sound mechanical wave driver sf 9324 detailed here in its pdf instruction sheet.
The wave driver shoes feature a premium, fullgrain leather upper and a nonmarking rubber outsole with wave siping for increased wet and dry traction. Mar 24, 20 in the 1960s, the swiss scientist hans jenny conducted a series of experiments to investigate how physical matter responds when irradiated with sound. Among pasco products, here are the function generators that can be used. Development of dynamic simulators using pasco models equipped with labview. Vibration modes of plates chladni resonances of wire loops bohr atom model vibration modes of springs. Mass set se8705 1 super pulley w me6838 1 meter stick 1 wave driver wa9753 or sf9324 1 patch cords se9750 2 important instructions. Sine wave generator wa9867 power supply 540057 suggested accessories model number string vibrator wa9858 economy wave driver wa9854 mechanical wave driver sf 9324 open speaker wa9900 economy resonance tube wa9495 banana patch cords se7123 power supply sine wave generator. There were four parts in the experimental setup, including a sine wave generator wa9867, pasco, ca, a mechanical wave driver sf 9324, pasco, ca, a vibration stage, and a plexiglas filter holder. Its primary function is to provide variable frequency, variableamplitude and mechanical vibrations for the lab.
The mechanical wave driver was synchronized with the oct. The mechanical wave driver requires a function generator providing up to 1 a to an 8. Lab 9 summary covers the mechanical waves lab phys. Chladni plates revisited american journal of physics 72, 45 2004. The sample is in a 10 cm diameter petri dish mounted to a pasco sf 9324 variable frequency mechanical wave driver. The shear wave was generated with a mechanical wave driver sf 9324, pasco scientific, roseville, ca fitted with a 1 in. The 3b scientific u56001 vibration generator creates mechanical waves with a frequency up to 20khz to demonstrate oscillation and resonance. Some equipment listed above may have to be substituted with an alternative to obtain an arrangement similar to that is shown on p. This experiment can also be done without using datastudio.
The illustrations at the top of the page show examples of the nodal patterns that can be created. The ends with the intact connectors would plug into the ports on the mechanical wave driver, and the middle of the cable would have the insulation stripped off. Performance of hydrophilic glass fiber media to separate. Though costly, mechanical wave drivers and digital function generators are available from many science supply houses.
You can then feed this signal through a stereo amplifier so that you can generate sufficient currents to drive the mechanical wave driver. The sample stage was mounted on a mechanical wave driver sf 9324, pasco scientific, roseville, ca, which provided a frequency range of 0. The acrylic plate was lowered until it just touched the fluid surface and a 61 hz sinusoidal signal was sent from a function generator wavetek 395, fluke precision. Sine wave generator department of physics and astronomy. Biomechanical properties of in vivo human skin from.
Submitted to the faculty of worcester polytechnic institute. When used with the pasco model wa9753 wave driver ii or sf9324 mechanical wave driver, the chladni plates kit improves on chladnis original method, allowing you to produce steady plate vibrations at any desired frequency. Pasco waves and sound mechanical wave driver sf9324. The commercial resonance demonstration apparatus1 shown in fig. It has a 4mm socket in the top and includes a mounting pin for attaching accessories sold separately.
Sources of error in standing waves lab physics forums. Optical microscale mapping of dynamic biomechanical tissue. In this case you would need a function generator to operate the driver sf 9324. You would generate the signals with a synthesizer, or through a program like garage band. Mar 29, 2011 if you are thinking of using this wave driver to create a cymatics device write in on the comments here and i can provide more detailed information. Optical microscale mapping of dynamic biomechanical tissue properties.
Pdf modeling and measurement of tissue elastic moduli using. It allows control for both the frequency and amplitude of the sine wave output. Exploration of abnormal skin tissue marfan syndrome with. Mechanical wave driver sf9324 open speaker wa9900 acdc electronics laboratory em8656 rlc circuit board ci6512 output jacks 4 mm resolution selection buttons output standby power button button liquid crystal display lcd frequency adjust knob and range selection button waveform selection button menu button voltage adjust knob and menu. A mechanical wave driver pasco sf9324 provides variablefrequency 0. Optical microscale mapping of dynamic biomechanical tissue properties xing liang 1, amy l. Use of os8440 wireless diffraction apparatus with dynamics track. Biomechanical properties of in vivo human skin from dynamic. A mechanical wave driver sf 9324, pasco scientific, roseville, ca was used for external mechanical excitation and the spectraldomain oct system was used for detection of surface wave propagation on the skin. How do i connect an external signal generator to the mechanical wave driver sf 9324. Different pasco signal generators can be used to power the wave driver. Any thoughts would be very helpful from experienced members. Experimental results of oce on silicone phantoms are in good agreement with those obtained. It includes a holder for a stand rod sold separately to demonstrate standing waves.
To learn about the damping, we set the commercial apparatus on a 0. The driving waveform was programmed and synchronized with the acquisition software. A plate or membrane vibrating at resonance is divided into regions vibrating in opposite directions, bounded by lines of zero vibration called nodal lines. By using a mechanical wave driver, available in introductory undergraduate laboratories, we provide various experimental results for end loaded cantilever beams that fit reasonably well into a linear equation. When used with the pasco model wa9753 wave driver ii or sf 9324 mechanical wave driver, the chladni plates kit improves on chladnis original method, allowing you to produce steady plate vibrations at any desired frequency. The sample is in a 10 cm diameter petri dish mounted to a pasco sf9324 variable frequency mechanical wave driver. The range of amplitudes is between 1 and 9 millimeters, with a marked dropo.
Chladni plates kit ayva educational solutions ayva. The behaviour of the cantilever beams weakdamping resonance response is studied for the case of metal resonance strips. The mechanical wave driver was synchronized with the oct system and sinusoidal waves were generated on the skin surface. Modeling and measurement of tissue elastic moduli using optical coherence elastography art. Its primary function is to provide variable frequency. The sine wave generator output the electrical signal to the mechanical wave driver at a particular frequency. The wave driver is one component of the electronic cymatics setup i use to create visual patterns from pure frequencies and music pieces such as you can see in this video. Sine excitation is supplied to the shaker and the sine wave is swept through the frequency range of interest. Optical microscale mapping of dynamic biomechanical.
While waves can move over long distances, the movement of the medium of transmissionthe materialis limited. Vibration assisted waterdiesel separation by electrospun. Pasco sf 9324 variable frequency mechanical wave driver, pasco pi9587b digital frequency generator, table rod, elastic string, table clamp with pulley, set of 50 g and 100 g masses with mass holder, meter stick. Direct visualization of shear waves in viscoelastic fluid. After seeing the chladni plate displays on youtube i thought this would be a great display for the project. Oscillations of end loaded cantilever beams iopscience. The mechanical driver was a standard electromagnetic driver, and was essentially a speaker with a post attached to the voice coil. Exploration of abnormal skin tissue marfan syndrome with 2d. Modeling and measurement of tissue elastic moduli using. Students can observe the quantum nature of standing wave patterns as the sine wave generator jumps from one resonant frequency to the next. Mechanical wave driver sf9324, pasco scientific, and function generator. Some equipment listed above may have to be substituted with an alternative to obtain an.
How to get a cymatics wave driver journal of cymatics. Wave x has an amplitude of 5 and wave y has an amplitude of 4. Boppart1 1department of electrical and computer engineering, beckman institute for advanced science and technology. I volunteered to help a friends child with her science fair which we decided to do on sound. The sine wave generator provided a varied frequency and amplitude sine wave signal used by the mechanical wave driver to generate the vibration. Mechanical wave driver sf 9324, digital function generator pi9587c.
Wave drivers provide variablefrequency, variableamplitude mechanical vibrations for the lab. A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. Featuring a handsewn construction to ensure the longevity of wear, and a plush fulllength eva footbed to provide allday comfort, this is the perfect casual driver for your shoe collection. Connect amplified signal from waveform generator introduction the sf9324 variable frequency mechanical wave drive lets you drive wave experiments with ease and accuracy. This precision sine wave generator is an excellent tool for generating waves with speakers for sound or with our mechanical wave driver for standing waves. What will happen when the crest of wave x meets the crest of wave y. A mechanical wave driver sf9324, pasco scientific, roseville, ca was used for external mechanical excitation and the spectraldomain oct system was used for detection of surface wave propagation on the skin. Mechanical wave driver wave drivers have a basic function. Affix mechanical wave driver to rods for adjustable height. If you are thinking of using this wave driver to create a cymatics device write in on the comments here and i can provide more detailed information. A major qualifying project report completed as required of bachelor of science degree at worcester polytechnic institute. The mechanical wave driver is an ideal device for harmonic and motion demonstrations.
The cables going from the back of the amplifier to the mechanical wave driver sf9324 would be a single cable of the se9751 that would be cut in half. The device used to oscillate the pivot of the pendulum is the pasco mechanical wave driver sf9324. Boppart1 1department of electrical and computer engineering, beckman institute for advanced science and technology, university of illinois at urbanachampaign, 405 n. Mechanical wave driver sf 9324 1 2meter patch cord set se9415a 1 large rod base me8735 1 threaded rod 25 cm me8988 1 large slotted mass set me7566 1 wireless load cells ps3216 4 mechanical wave driver wireless load cell in the shaking tower experiment, the tower is shaken by the mechanical wave driver which is. Instruction sheet for the pasco model wa9607 chladni. For this project we used the pasco scientific mechanical wave driver model no. It consists of three pairs of slender springsteel rods attached to a horizontal bar. Decay times and quality factors for a resonance apparatus. Samples were mounted between the upper glass window. Jul 21, 2008 the sample stage was mounted on a mechanical wave driver sf 9324, pasco scientific, roseville, ca, which provided a frequency range of 0. Sf 9324 01203177h mechanical wave driver 2 you can attach a wire or string to the mechanical wave driver using one of the included connectors string holder with plug or slotted string holder with plug.