• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.
IOSR Journal of Applied Physics (IOSR-JAP) e-ISSN: 2278-4861.

... to charge through R8. When the capacitor C1 voltage reaches 2/3VCC, this unit output then switches to the LOW state and remains LOW until Q2 is again saturated. There is therefore a delay in the response of the unit output at pin 3 with respect to the triggering input cause by the switching action o ...
Development of 14 Gbit/s Uncooled TOSA with
Development of 14 Gbit/s Uncooled TOSA with

... fiber channel (hereinafter, 16GFC) standards. The transmission distance is less than 10 km and the transmission rate is 10.3125 Gbit/s for 10GBASE-LR and 14.025 Gbit/s for 16GFC. The optical interface is LC receptacle and the electrical interface is 8-pin flexible printed circuit (FPC). In general, ...
Infra-MXB
Infra-MXB

... General: Upon detailed evaluation and analysis of an INFRA system, it is clear that the fundamental impression of power and impact is greater with an INFRA system when compared to conventional bass systems. This is true even when the two systems will measure the exact same calibrated dB sound pressu ...
Phase Locked Loop Basics
Phase Locked Loop Basics

... This comes at the expense of slower response and reduced capture range. An example of typical measurement of PLL dynamic response is shown in figure 2. This PLL is used in a frequency synthesizer and shows the response to an 80 kHz step in the 10 MHz reference input. This circuit has a capture range ...
Filters and Waveform Shaping
Filters and Waveform Shaping

Power Flow Enhancement of 220 KV
Power Flow Enhancement of 220 KV

Lecture Notes - Practical AC Circuits File
Lecture Notes - Practical AC Circuits File

XR2206 Functional Generator kits The module described here is
XR2206 Functional Generator kits The module described here is

.3Stakeholder Comparison Comment Rationale Matrix 2010-07-15 AESO AUTHORITATIVE DOCUMENT PROCESS
.3Stakeholder Comparison Comment Rationale Matrix 2010-07-15 AESO AUTHORITATIVE DOCUMENT PROCESS

... remote from generation stations, so they do not operate at or below 115% of the maximum current flow from the load to the generation source under any system configuration. R1.8. Set transmission line relays applied on the bulk system-end of transmission lines that serve load remote to the system so ...
Business Data Communications and Networking
Business Data Communications and Networking

... bandwidth is imposed by the equipment used in the telephone network. The actual capacity of bandwidth of the wires in the local loop depends on what exact type of wires were installed, and the number of miles in the local loop. Actual bandwidth in North America varies from 300 KHz to 1 MHz depending ...
SpectrAlert® Advance Indoor Selectable Output Speaker Strobes
SpectrAlert® Advance Indoor Selectable Output Speaker Strobes

... 25.0 or 70.7 nominal Vrms selected via rotary switch, and shall have a frequency range of 400 to 4000Hz. Speaker shall have power taps which are selected by rotary switch. The strobe shall comply with the NFPA 72 requirements for visible signaling appliances, flashing at 1Hz over the strobe’s entire ...
Final Report - Senior Design
Final Report - Senior Design

... distance of 5-10 inches, a supply voltage of less than 1.4 Volts, and a size small enough to fit within the ear. Once the team selected a design, a prototype transmitter was constructed on a breadboard from common thru-hole components. This initial prototype yielded excellent results and transmitted ...
A CW Adapter for the Radio Shack HTX-10 Ten Meter
A CW Adapter for the Radio Shack HTX-10 Ten Meter

... middle capacitor of one of Q1’s The adapter schematic is RC networks. This is a point shown in Fig. 2. It operates by where the distortion of the signal injecting a pure sinusoidal audio is minimum, but this point must tone of about 800 Hz into the not be loaded very heavily if microphone input. As ...
Franco’s Finest: MGA62563 ultra low noise amplifier 1.0
Franco’s Finest: MGA62563 ultra low noise amplifier 1.0

... Figs 1 and 2 there is the broadband and expanded low frequency band graph in order to show it at lower frequencies, the noise figure remains lower than 1dB up to 2GHz (typically 0.9dB) and 1.1dB @ 2.5GHz. The associated gain is appropriate for applications from 30MHz to 2.6GHz, see table 1. This is ...
Stakeholder Comparison Comment Rationale Matrix 2010-07-15 AESO AUTHORITATIVE DOCUMENT PROCESS
Stakeholder Comparison Comment Rationale Matrix 2010-07-15 AESO AUTHORITATIVE DOCUMENT PROCESS

... lines so they do not operate at or below the maximum power transfer capability of the line, determined as the greater of: - 115% of the highest emergency rating of the series capacitor. - 115% of the maximum power transfer capability of the circuit (expressed in amperes), calculated in accordance wi ...
26-DigitalDesign - inst.eecs.berkeley.edu
26-DigitalDesign - inst.eecs.berkeley.edu

...  Converts line AC voltage to regulated DC low voltage levels ...
Digital Design and System Implementation Overview of Physical
Digital Design and System Implementation Overview of Physical

... The gate acts like a capacitor. A high voltage on the gate attracts charge into the channel. If a voltage exists between the source and drain a ...
Three-Phase Power Conditioner Solatron™ Plus Series Instruction
Three-Phase Power Conditioner Solatron™ Plus Series Instruction

... While every precaution has been taken to ensure accuracy and completeness in this manual, EGS Electrical Group, LLC. assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions. The SolaHD and Emerson logos are registered ...
NYSERDA Project 10470 - Real-Time Applications of
NYSERDA Project 10470 - Real-Time Applications of

... Specific requirement to assess proposed generation in long term horizon Requires consideration of outages and performance deficiencies on neighbors’ systems ...
Click here to Specification
Click here to Specification

... can be used to improve high speed performance and system efficiency. The IM483 also comes with an optional on-board indexer to provide design engineers with versatility and power unmatched in today’s ...
Audio Equipment for Sale
Audio Equipment for Sale

... is completely possible. Circuit is controlled by pulse width modulation, which is moderated by an electronic switch that opens and closes at a rate of 200 KHz. It was engineered to be very effective when under high demand without introducing exorbitant pumping and breathing effects in the low freque ...
Fujifilm Electronic Materials USA, Inc. ISO 9001: 2008
Fujifilm Electronic Materials USA, Inc. ISO 9001: 2008

... National Quality Assurance, U.S.A., against the provisions of: ...
Capacitor Self
Capacitor Self

... On a logarithmic grid, the numbers 1, 2, 5, and 10 (in any decade) are about equal distances from each other. Since gain plots are usually drawn on log-log grids, it is common practice to acquire data in frequency increments of 1, 2, 5, 10. For example, if the desired frequency range starts at 10 Hz ...
William States Lee III Nuclear Station FSAR, Chapter 8 CHAPTER 8 ELECTRIC POWER
William States Lee III Nuclear Station FSAR, Chapter 8 CHAPTER 8 ELECTRIC POWER

... switches fully rated for the ultimate load and fault current levels to which the substation might be exposed. The nominal continuous current ratings of the installed equipment (based on a nominal operating temperature of key elements at 90 Deg C) is 4000 amperes for the 525 kV switchyard and 3000 am ...
Altec 1568A amplifier maunal
Altec 1568A amplifier maunal

< 1 ... 128 129 130 131 132 133 134 135 136 ... 174 >

Transmission line loudspeaker

A transmission line loudspeaker is a loudspeaker enclosure design (topology) that uses an acoustic transmission line within the cabinet, compared to the simpler enclosures used by sealed (closed) or ported (bass reflex) designs. Instead of reverberating in a fairly simple damped enclosure, sound from the back of the bass speaker is directed into a long (generally folded) damped pathway within the speaker enclosure, which allows far greater control and use of speaker energy, and the resulting sound.Inside a transmission line loudspeaker, is a (usually folded) pathway into which the sound is directed. The pathway is often covered with varying types and depths of absorbent material, may vary in size or taper, and may be open or closed at its far end. Used correctly, such a design ensures that undesired resonances and energies, which would otherwise cause undesirable auditory effects, are instead selectively absorbed or reduced (""damped"") due to the effects of the duct, or alternatively only emerge from the open end in phase with the sound radiated from the front of the driver, enhancing the output level (""sensitivity"") at low frequencies. The transmission line acts as an acoustic waveguide, and the padding both reduces reflection and resonance, and also slows the speed of sound within the cabinet to allow for better tuning.Transmission line loudspeakers designs are more complex to implement, making mass production difficult, but their advantages have led to acclaim for a number of manufacturers such as IMF, TDL, PMC, KVART & BØLGE and the like. As a rule, transmission line speakers tend to have exceptionally high fidelity low frequency response far below that of a typical speaker or subwoofer, into the infrasonic (British company TDL's studio monitor range from the 1990s quoted their frequency responses as starting from as low as 7 Hz depending upon model) at sensitivity 96 dB, without need for a separate enclosure or driver. Acoustically, TL speakers roll off slower at low frequencies and provide better driver control than standard reflex cabinet designs, are less sensitive to positioning, and tend to create a very spacious soundstage. Modern TL speakers were described in a 2000 review as ""match[ing] reflex cabinet designs in every respect, but with an extra octave of bass, lower LF distortion and a frequency balance which is more independent of listening level"".Although more complex to design and tune, and not as easy to analyze and calculate as other designs, the transmission line design is valued by several smaller manufacturers, as it avoids many of the major disadvantages of other loudspeaker designs. In particular, the basic parameters and equations describing sealed and reflex designs are fairly well understood, the range of options involved in a transmission line design mean that the general design can be somewhat calculated but final transmission line tuning requires considerable attention and is less easy to automate.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report