• 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
1. Introduction
1. Introduction

... However, only two standard filter functions (i.e. LP and BP) can be obtained simultaneously. All the recently published multifunction voltage-mode filters in [16]-[17] employ two floating capacitors, and require critical matching component constraints for each filter response. With threeinput two-ou ...
Switch Debounce Filter
Switch Debounce Filter

IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)

... devices. In this respect, realizations of low-voltage and high-frequency active filters are an attractive choice in the field of signal processing. Active filters are the best choice because they have the possibilities of integration and they are suitable for high frequency and low voltage operation ...
Noise Bridge
Noise Bridge

... Then we turned our attention to a more expensive radio. This time we were shelling out a whole £2.99 ! Sold by the UK store “Superdrug” this radio sported 10 short wave bands as well as FM and medium wave. The major discovery was that the display was actually a frequency counter. ...
AN-8006 Capacitor Selection for the FMS6410B S-Video Filter
AN-8006 Capacitor Selection for the FMS6410B S-Video Filter

... The FMS6410B, when AC coupled out, also requires four 220µF output coupling capacitors if all outputs are to be used. See Figure 1. However, some users may use values up to 1000µF to pass “TILT” specifications in the two-field test. In the past, when wideband signals such as video needed coupling ca ...
No Slide Title
No Slide Title

... semiconductor sheet – magnetic field flux lines perpendicular to current cause proportional voltage across sheet. – discovered by E.F.Hall in 1879 ...
Ferroelectrics in microwave technology
Ferroelectrics in microwave technology

... Call for Papers IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES Special Issue on APPLICATIONS OF FERROELECTRICS IN MICROWAVE TECHNOLOGY This Special Issue will focus on potential applications of ferroelectric materials, in both paraelectric and ferroelectric phases, in microwave devices and sys ...
MS Word - Sonoma State University
MS Word - Sonoma State University

... frequency response of the system. We want to calculate the total noise power Pt output with the RC low-pass filter inserted. The input noise source is white noise which is proportional to the mean-squared value of the noise voltage, namely en2,in, and we assume a normalized impedance of one ohm fo ...
Frequency Selective Circuits
Frequency Selective Circuits

... b. Connect channel 1 of the oscilloscope to display the input voltage. Adjust the amplitude of the signal generator and the volts/division setting on the scope to display an 8VPP signal across the full vertical range of the scope. c. Connect channel 2 to display VO. d. Measure the amplitude of the o ...
Chapter 14: Amplifiers & Oscillators
Chapter 14: Amplifiers & Oscillators

... Filters: Low-Pass • Allows low frequencies to pass with minimal attenuation while blocking all frequencies above the cut-off frequency • Often used between TXVR and antenna f = low ...
Introduction to Engineering Session 68 Electrical Circuits
Introduction to Engineering Session 68 Electrical Circuits

... show how components are connected electrically. This is not the same as showing where components are physically, or how they have been laid out on a circuit board.  Standard symbols are used. ...
must be adjusted as shown for the CLASS E PA. More power is
must be adjusted as shown for the CLASS E PA. More power is

Electromechanical systems
Electromechanical systems

... • Piezoelectric materials produce charge when deformed (ex: accelerometer, microphone, load cell, etc.) • Electrical properties of many materials change with temperature, deformation, etc. (ex: thermistor, pressure transducer, strain gage) • Motion of a conductor through a magnetic field can induce ...
Filters and Waveform Shaping
Filters and Waveform Shaping

... Make up your own 10 mH inductor from the kit of parts. Keep it for the semester to use in other experiments. The inductor is a ferrite pot-core type that is commonly used at frequencies below 1 MHz. The particular core is # 3B7-U1750. Ferrite is a ferromagnetic oxide of iron of high magnetic permeab ...
40235 Dual Filter
40235 Dual Filter

... The 40235 dual filter is capable of a wide variety of low-pass responses and characteristic tonal colouration. In 4-pole mode, you have the "fat" sound of a 24 dB/oct filter slope, while the 2-pole mode gives a less dramatic, more electronic sound. Also, while the signal output levels in the two fil ...
Filter Types
Filter Types

... resonators or crystal resonators have unwanted resonance modes. Quartz crystals have anharmonic resonance normally occurring just above the desired resonance as well as nearharmonic overtone responses. Consequently, almost all crystal filters will exhibit unwanted responses in their amplitude and ph ...
8-Channel EMI Filter with Integrated ESD Protection
8-Channel EMI Filter with Integrated ESD Protection

... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marki ...
High-Input and Low-Output Impedance Voltage
High-Input and Low-Output Impedance Voltage

AD9357 数据手册DataSheet 下载
AD9357 数据手册DataSheet 下载

... Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. N ...
ISSCC 2014 / SESSION 12 / SENSORS, MEMS, AND DISPLAYS
ISSCC 2014 / SESSION 12 / SENSORS, MEMS, AND DISPLAYS

ac filter capacitors for pwm inverter
ac filter capacitors for pwm inverter

... Electronic Concepts’ 5MPA line of high current, broad RMS spectrum, AC capacitors. The unique rugged terminations and robust design of the 5MPA capacitors are particularly suited for PWM outputs, and handle current spectrums from both line frequency and superimposed harmonic ripple on the carrier wa ...
Article - I
Article - I

... implemented, and also has all the good properties of the DDCC, such as high-input impedance, employs fewer active and passive components, and easy implementation of differential and floating input circuits. Moreover, the differential voltage current conveyor transconductance amplifier (DVCCTA) can e ...
21787 Demonstrate and apply electrical and electronic
21787 Demonstrate and apply electrical and electronic

... and subsystems in mechanical engineering systems. This unit standard applies to mechanical engineering systems that contain electrical components and systems, and electronic subsystems. It is designed to provide technician mechanical engineers with a working knowledge of electrical principles, prope ...
Novel Current-Mode Second-Order Square-Root-Domain
Novel Current-Mode Second-Order Square-Root-Domain

... Companding filters are studied by many researchers, because these filters have the advantages of high-frequency operation, electronically tunable, and large dynamic range under low power supply voltages [1-5]. The companding filters, in which the input signals are first compressed, then properly pro ...
Circuit Models for Anti-series and Anti
Circuit Models for Anti-series and Anti

... parallel connection. Even though some measurements results for two anti-series and anti-parallel resonators are not known, these design solutions have been used for power BAW filters, a significant reduction of the distortions at the output of the filter being measured. This reduction of the 2f freq ...
< 1 ... 77 78 79 80 81 82 83 84 85 ... 92 >

Mechanical filter



A mechanical filter is a signal processing filter usually used in place of an electronic filter at radio frequencies. Its purpose is the same as that of a normal electronic filter: to pass a range of signal frequencies, but to block others. The filter acts on mechanical vibrations which are the analogue of the electrical signal. At the input and output of the filter, transducers convert the electrical signal into, and then back from, these mechanical vibrations.The components of a mechanical filter are all directly analogous to the various elements found in electrical circuits. The mechanical elements obey mathematical functions which are identical to their corresponding electrical elements. This makes it possible to apply electrical network analysis and filter design methods to mechanical filters. Electrical theory has developed a large library of mathematical forms that produce useful filter frequency responses and the mechanical filter designer is able to make direct use of these. It is only necessary to set the mechanical components to appropriate values to produce a filter with an identical response to the electrical counterpart.Steel and nickel–iron alloys are common materials for mechanical filter components; nickel is sometimes used for the input and output couplings. Resonators in the filter made from these materials need to be machined to precisely adjust their resonance frequency before final assembly.While the meaning of mechanical filter in this article is one that is used in an electromechanical role, it is possible to use a mechanical design to filter mechanical vibrations or sound waves (which are also essentially mechanical) directly. For example, filtering of audio frequency response in the design of loudspeaker cabinets can be achieved with mechanical components. In the electrical application, in addition to mechanical components which correspond to their electrical counterparts, transducers are needed to convert between the mechanical and electrical domains. A representative selection of the wide variety of component forms and topologies for mechanical filters are presented in this article.The theory of mechanical filters was first applied to improving the mechanical parts of phonographs in the 1920s. By the 1950s mechanical filters were being manufactured as self-contained components for applications in radio transmitters and high-end receivers. The high ""quality factor"", Q, that mechanical resonators can attain, far higher than that of an all-electrical LC circuit, made possible the construction of mechanical filters with excellent selectivity. Good selectivity, being important in radio receivers, made such filters highly attractive. Contemporary researchers are working on microelectromechanical filters, the mechanical devices corresponding to electronic integrated circuits.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report