Instruments Definition and 100 Threads

Texas Instruments Incorporated (TI) is an American technology company headquartered in Dallas, Texas, that designs and manufactures semiconductors and various integrated circuits, which it sells to electronics designers and manufacturers globally. It is one of the top 10 semiconductor companies worldwide based on sales volume. The company's focus is on developing analog chips and embedded processors, which account for more than 80% of its revenue. TI also produces TI digital light processing technology and education technology products including calculators, microcontrollers and multi-core processors. The company holds 45,000 patents worldwide as of 2016.Texas Instruments emerged in 1951 after a reorganization of Geophysical Service Incorporated, a company founded in 1930 that manufactured equipment for use in the seismic industry, as well as defense electronics. TI produced the world's first commercial silicon transistor in 1954, and the same year designed and manufactured the first transistor radio. Jack Kilby invented the integrated circuit in 1958 while working at TI's Central Research Labs. TI also invented the hand-held calculator in 1967, and introduced the first single-chip microcontroller in 1970, which combined all the elements of computing onto one piece of silicon.In 1987, TI invented the digital light processing device (also known as the DLP chip), which serves as the foundation for the company's award-winning DLP technology and DLP Cinema. TI released the popular TI-81 calculator in 1990, which made it a leader in the graphing calculator industry. Its defense business was sold to Raytheon in 1997; this allowed TI to strengthen its focus on digital solutions. After the acquisition of National Semiconductor in 2011, the company had a combined portfolio of 45,000 analog products and customer design tools. In the stock market, Texas Instruments is often regarded as an indicator for the semiconductor and electronics industry as a whole, since the company's products are used in almost all electronic products.

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  1. W

    Measuring the water volume in a small tank with a manometer

    This is what I thought was a simple task, but it's causing me headaches. I have a conical steel tank with approximately 14 liters of fluid capacity. I need to determine the volume of water in the tank when in use, and we are currently planning to measure the pressure at the bottom of the tank...
  2. S

    Tell us about left-right hand coordination when playing musical instruments, especially for Piano

    My only realistic experience was with string instruments with fingerboards. Coordination between or with left and right hands was never a problem, at least for me. Plenty of piano students and piano players seem to demonstratably not have trouble with coordination of the hands either, but I do...
  3. H

    Excellence On Obscure Instruments

    Kazoo Keytar Harpiji Stylophone
  4. Spockishere

    I Infinite Frequencies & Extraterrestrial Signals: What Are We Missing?

    And if there are an infinite amount of frequencies, doesn't that mean that an extraterrestrial civilization could be reaching out without us being able to receive their signals. And even if we did receive their signals, how would we understand their form of communication? What if they...
  5. A

    Music Fusion of Western musical instruments

    Western musical instruments Western musical instruments images Trumpet and Saxophone. Is it possible to design and construct western musical instruments as a fusion of two or more functions and features? I mean to say Guitar, Violin, Trumpet, Saxophone, Piano etc integrated into a single...
  6. D

    B Fourier Analysis on musical chords in different instruments

    I wanted to do an investigation about how the same musical chord can have the same pitch but sound different on different musical instruments. Like how chord C major would sound higher played in the electric guitar than a C major played on piano. How should I approach this investigation?
  7. H

    Radiation leak test instruments

    I would like to find out please what is the preferred instrument to leak test very low levels of leaks of Americium, say in school sources. I mean an instrument which could measure leaks of 0.0005 microcuries. There are so many instruments. Some people say to measure the gamma emissions, others...
  8. F

    How does a Western free reed work? (musical instruments)

    In this post, I will describe, as best I have been able to determine, how a Western free reed works. As it is unlikely I will run into a physicist here who specializes in reeds, I will just ask people to speculate on the behavior of a reed given what you know about fluid dynamics or the...
  9. W

    I Which instruments are used to determine the composition of dark matter?

    Hello, I have a general understanding of how we are aware of the presence of dark matter in the universe and the fact that we still don't know exactly what is that dark matter is made of. I would like to know which instruments are used to try and find an answer. For instance, from what I...
  10. I

    Simple Harmonic Motion/Fundamental Frequency

    Homework Statement A tuba is a instrument that can be modeled after a closed tube and has a length of 4.9m. A frequency of 122.5hz produces resonance in the Tuba. Is this the fundamental frequency of the instrument? If not, what harmonic is it? Homework Equations f=λv 4l=λ(open closed tube) v=...
  11. ubergewehr273

    B Knowing if the elevator is moving or not

    Consider a hypothetical scenario where you are present in an elevator which is either at rest or is moving with constant velocity (ignore cases of acceleration when elevator stops/starts moving). Now how will you determine if the elevator is moving or not given that there are no windows in the...
  12. S

    Standing Waves (Instruments) & Interference interpretation?

    Hi, I'm trying to solve two problems related to standing waves and wave interference; while I'm not having difficulty with the actual solving portion, I don't know if I'm interpreting the questions correctly. Question 1: "A violin string is tuned to 460 Hz (fundamental frequency). When playing...
  13. D

    The making of vintage precision instruments

    Ever when I see one of these beautiful brass scientific instruments, like microscopes, telescopes, goniometers etc. from the 19th century, I wonder how they have been actually made and whether I could learn how to do this. I think that most of gears used in the construction of these pieces were...
  14. S

    Music Musical instruments layout in an orchestra?

    I listen to rock music and usually in the musical mix, the drum is placed at the center/back of the soundstage, the vocal is at the center/front, and other instruments like guitar, piano are either are the left or right and slightly up front. So this gives a nice weight to the soundstage with...
  15. R

    Why don't bowed musical instruments deaden their sound?

    Horsehair is a string of tiny bead-shaped growths -- from what I have read. Even that slides over strings until rosin allows the "beads" to grab temporarily. But if one bead pulls and releases the string, wouldn't the other strings in the horsehair "hank" dampen that sound? It obviously doesn't...
  16. Fizzics

    Power measurement of a servo motor using simple instruments

    Hello all, I have a 1kw 3 phase 10 pole servo motor which is powered from 240 volt ac single phase supply via an invertek p2 controller/inverter. The motor is only operated for short high speed bursts and I would really like to be able to measure the power usage of the motor using formula and...
  17. newjerseyrunner

    What are your musical preferences?

    I'm just curious; this forum is full of people who excel at creativity thinking, something essential for music and art. I play the keyboard and an electric guitar, but I'm not practiced in either, I just dabble.
  18. D

    Optical instruments: Microscope and Telescope

    What are the different formulas for the calculation of magnifying power of a microscope and a telescope? And how would we use the sign conventions in them?
  19. cnh1995

    How PMMC and MI Instruments Read Average Values for DC Waveforms

    How does a PMMC instrument read average value of a dc waveform? Is it true for pure dc or pulsating dc as well? I mean what will the meter show if I fed a full wave rectifier's output to it? Will it show its average vaue 2Vm/π? If yes, I don't understand how. Say the meter is an ammeter. So, the...
  20. M

    Cleaning copper connections for high precision instruments

    Hi all, Here's my first post with a question I've been trying to solve for a while. I work with electronic components of very high quality and we try to make all our connections using thin copper ribbons of various thickness. I have started cleaning my copper connections with a solution of...
  21. Y

    Why do open holes in air instruments act as pressure nodes?

    Just out of curiousity, why is this? I'm reading this page right here: http://newt.phys.unsw.edu.au/jw/fluteacoustics.html#registerhole A dark hole on the flute means the button is closed, and each white hole means the button is open (open to atmospheric pressure). You can see from the...
  22. Avatrin

    Musical instruments and mechanics

    Hi I have been curious about the relationship between the geometry of a musical instrument and the sound it produces. What should I read and learn to understand this? I know I will probably need to learn fluid mechanics, but what else? Surely fluid mechanics cannot be enough. I already have a...
  23. A

    Why are spherical instruments not more common?

    When it comes to waves, spherical harmonics are, like, da bomb. I'm no expert - probably obvious from the question - but it seem to me that an instrument which maximises the utilisation of harmonics/resonances would be spherical. And yet, I can think of no spherical instruments - the most...
  24. 1

    Instruments to measure plasmas besides Langmuir probes?

    If a plasma is created at one end of a solenoid and heads down towards a target with a density and temperature too high for Langmuir probes, what other instruments can measure the density with a strong signal that is easy to interpret?
  25. F

    Can Resonance Occur at Multiple Frequencies in String Instruments?

    Can resonance occur at multiple frequencies for the same given instrument? For example, in a violin, each note on a given string (say A) resonates and is the loudest only at a specific point on the string. Since each note on the same string can resonate, and each note has a different frequency...
  26. J

    What Determines the Note of a Guitar String When Plucked?

    When you pluck a guitar string it resonates at its fundamental frequency plus some of the overtones. My question is, what exactly determines the note (i.e. A,C, E etc) for, say, a guitar? For example, if note A is 440Hz then what is it that is at 440Hz because some instruments have lots of...
  27. T

    Instruments with electromagnetic nozzle

    I recently saw an technical instrument that uses electromagnetic field to capture and move small objects. For example it can be used to capture and unscrew nut(female screw). How this instrument can be named right to find its description in the Internet?
  28. T

    Seeking advice on creating ratio scales from ordinal scale instruments

    I have a psychological testing instrument that produces an ordinal measure (0, 1, 2, 3, 4, 5). I want to change this to a ratio scale with range 0 to 5. The instrument is designed so the first 5 questions are very easy (Level 1), the next 5 questions are harder (Level 2), the next set is...
  29. N

    How do instruments calculate things using absorption of light?

    Supposedly devices use special algorithms to determine specific things about an object by its absorption or reflection of light, how exactly would such equations work? (if this isn't calculus then please tell me and ill post it somewhere else, i wasn't sure what type of mathematics this would be)
  30. B

    Confused about string instruments and standing waves

    So I made a banjo for my project and now I need to do the calculations. Well since its a string instrument I have to find the frequencies of the first four harmonics, I already have the fundamental frequency. Is it fine to use: fn = nf1 Not sure because I thought that was for open end air...
  31. C

    Calculating Image Position and Height Using Two Lenses?

    Homework Statement A 2 cm tall object is 20 cm to the left of a lens with a focal length of 10 cm. A second lens with a focal length of 15 cm is 30 cm to the right of the first lens. Calculate the image position and height. Compare with ray-tracing. Homework Equations 1/f = 1/do + 1/di, m =...
  32. I

    What causes musical instruments to have different sounds?

    harmonics... got it.. but for instruments, whether they have a sound cavity (brass instrument or woodwind) or a string, to be resonating at say, 400 Hz, they should both have the same resonant frequencies no? if a string instrument resonates at 400 Hz, it should also resonate at factors of this...
  33. H

    Simulating diffraction in optical instruments - help settle a dispute

    Consider a Newtonian reflector telescope: As you can see in the image, the little secondary mirror inside the main tube is supported by an X structure called 'spider'. The four "legs" of the spider, called 'vanes' by astronomers, are actually thin stripes of high-tensile material, usually...
  34. S

    Experience Building Musical Instruments

    Hi everyone. I'm looking to take up electronics as a hobby. I also play the electric bass guitar and I've been seriously contemplating building my own in my spare time. The ominous woodworking aside, I was wondering if anybody had any experience with building instrument electronics from...
  35. 0

    How does electro dynamical instruments work?

    I know that electro dynamical instrument has moving coil and stationary coil, and moving coil moves around it, does stationary coil make homogenic magnetic field? And moving coil moves around axis, and we have coil springs where they are placed and what they do? In instrument with moving coil we...
  36. R

    How is a moving coil meter converted into an ohmmeter?

    Can someone tell me how a moving coil meter is converted into an ohmmeter? I have been searching for relevant derivations for the series type ohmeter but came up with nothing useful. If you have an information source on the subject please share.
  37. R

    What instruments did gauss use to measure flux / electric fields?

    Gauss equations state that the flux of a gaussian surface is equal to the sum of all the electric field times the surface area. Although he stated this in theory, how was he able to prove it possible. What measuring device do people use to prove that this theory is correct?
  38. bcrowell

    What are the effects of overblowing on wind instruments?

    Wind instruments exhibit overblowing: http://en.wikipedia.org/wiki/Overblowing Naively, I would expect that if one, for example, blew harder on a whistle, or blew at a different angle on a flute, the result would be as follows. You produce some noise spectrum, which becomes a different noise...
  39. DeusAbscondus

    MHB Learning Texas Instruments Calculator

    I am used to Classpad but have to quickly train myself up to use TI for exam requirements. I can't work out how to do 2 bread and butter things: 1. get an answer in exact form, ie: $$\frac{\pi}{2}+\frac{\pi}{2}=\pi$$ and, 2. how to differentiate $$x^2\ or\ 2x^3+3x$$ without having to...
  40. C

    Books on Experimental Methods, Instruments, and Measurements

    I'm looking for some good quality books on experimental methods, instruments, and measurements for graduate level. Do you guys have any recommendations?
  41. A

    Instruments and Imaging: How to prevent condensation inside a closed system?

    Dewing of a mirror or object glass can be countered with various devices and methods, but its occurrence inside a closed system is particularly problematic. I have received the following enquiry (from an experienced observer who has used several instruments over many years) concerning...
  42. O

    National Instruments MultiSim, or something else?

    I've been long looking for some better software. I haven't previously paid, but I'm prepared to pay a small amount for something worthwhile. (Student discount helps!) I've been playing with a now expired evaluation license of NI MultiSim, which seems pretty good. I also quite liked...
  43. C

    Musical instruments - beats phenomenon

    Can anyone give me a description of the beats phenomenon associated with musical instruments (or in general, any waves with which beats are associated). I have looked at numerous textbooks however I feel I don't completely understand the concept still. Thanks
  44. N

    Music Ranks of musical instruments for a Turk

    imo, ranks of musical instruments: 1st ney or nay ( reed flute or Turkish flute) : it is not side-blown or transverse 2nd classical kemence ( a grandson of byzantion lyra): a bowed instrument and should not be confused with ancient greek lyre 3rd tanbur ( a kind of long necked...
  45. A

    Accuracy, Precision and Sensitivity for measurement instruments

    My book defines accuracy as the closeness of a measurement to the real/actual value, precision as when a set of values are consistent with each other (i.e. close to each other) and sensitivity as the smallest possible reading of an instrument (i.e. to how many decimal places it can measure)...
  46. C

    Acoustic Analysis of Musical Instruments

    I'd like to learn more about acoustic analysis of musical instruments, but I have no idea where to even start. I've taken some acoustics courses and some fluid dynamics courses as well as structural vibrations. What I'd like to do is model an instrument and then have a numerically predicted...
  47. T

    How Does Air Pressure Behave in Vibrating Wind Instruments?

    In a tube (open at both ends) that's vibrating at its fundamental frequency, is the air pressure the ambient air pressure at both ends and higher in the middle, lower in the middle, or can it be either higher or lower in the middle? Why? If the same tube is vibrating at the frequency of its...
  48. I

    Simulating musical instruments with tuning forks

    Hi, Would it be possible to simulate the sound of a musical instrument such as a clarinet by finding the Fourier series of the waveform and then hitting a bunch of tuning forks with the corresponding frequencies and amplitudes?
  49. 3

    What to use for graphing sounds of instruments

    Hello, For my physics EEI I am wanting to look at sound frequencies. What I plan to do is to get a guitar and play a note, let's say a "c natural". Then I want to play a "c sharp" and then compare the two notes. I want to be able to find the amount "beats" over a duration of say 1-2 seconds...
  50. B

    National instruments oscilloscope

    Hello, I am trying to understand input AC source signal amplification. But since my image is so blurry in my textbook and I cannot find it anywhere on the internet, I am trying to simulate it in National instruments. How do you make oscilloscope measure current, instead of voltage? Sinusoid...
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