... The wide usage of non-linear loads, such as personal computers, variable speed drives, UPS systems, and the other electronic equipments produce harmonics which is a major problem in industrial and commercial power systems. The current harmonics are widely spread in industrial systems. These harmonic ...
Reliability Maintenance Concerns
... periodic maintenance, the fuse itself does not require any maintenance or testing to assure proper operation and protection under overcurrent conditions. This is because the fuse does not contain any mechanical linkages that could adversely affect overcurrent protection performance over time. In add ...
... periodic maintenance, the fuse itself does not require any maintenance or testing to assure proper operation and protection under overcurrent conditions. This is because the fuse does not contain any mechanical linkages that could adversely affect overcurrent protection performance over time. In add ...
Control Engineering 12/15
... the parasitic capacitance to ground increases. Manufacturers try to improve this by using specific constructions, but this could be done in a limited range only. For an efficient elimination of common-mode disturbances, additional filter technologies have to be used to reduce output interferences to ...
... the parasitic capacitance to ground increases. Manufacturers try to improve this by using specific constructions, but this could be done in a limited range only. For an efficient elimination of common-mode disturbances, additional filter technologies have to be used to reduce output interferences to ...
A Practical Micropower Programmable Bandpass Filter for use in Bionic Ears
... be treated as a low impedance node in our circuit, the buffer must have a much higher transconductance than the transconductors used in the filter stages. It is tempting to try and use a lower bias and simply include the buffer’s output impedance in the filter design. The buffer is, however, operati ...
... be treated as a low impedance node in our circuit, the buffer must have a much higher transconductance than the transconductors used in the filter stages. It is tempting to try and use a lower bias and simply include the buffer’s output impedance in the filter design. The buffer is, however, operati ...
A New Harmonic Detection Method for Shunt Active
... in [7 ,2 1 ] each window will be expedient in specific terms. Figure 6 and Fig. 7 illustrate the effect of windowing in the frequency domain for two popular windows. Magnitude spectra of rectangular and Hamming windows are shown in Fig. 6 and Fig. 7 respectively. T he magnitude spectrum of each wind ...
... in [7 ,2 1 ] each window will be expedient in specific terms. Figure 6 and Fig. 7 illustrate the effect of windowing in the frequency domain for two popular windows. Magnitude spectra of rectangular and Hamming windows are shown in Fig. 6 and Fig. 7 respectively. T he magnitude spectrum of each wind ...
N-channel 60 V, 0.0012 typ., 260 A STripFET™ F7 Power MOSFET
... STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing or ...
... STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing or ...
... limitations, and also is the borders of up and down of elements (C,L 1,L2). This subject can be solved with the use of the object integral in optimization tool box. The initial elements and the frequency of switching for optimization element have a lot of influence on the final conclusion with softw ...
P20Z TYPE
... The P20Z transducer does not require any periodical maintenance. In case of some incorrect operations: After the dispatch date and in the period stated in the guarantee card: One should return the instrument to the Manufacturer’s Quality Inspection Dept. If the instrument has been used in compliance ...
... The P20Z transducer does not require any periodical maintenance. In case of some incorrect operations: After the dispatch date and in the period stated in the guarantee card: One should return the instrument to the Manufacturer’s Quality Inspection Dept. If the instrument has been used in compliance ...
study on metal melti study on metal melting at high frequency ng at
... series LC circuit with a certain configuration. Inside the coil with L inductivity one introduces the metal (Φ) to be melted [7]. By modifying the frequency of the Uinv voltage wave from the exit of the static converter and my altering the modulation degree (m=AS/AD) we can obtain the resonance of t ...
... series LC circuit with a certain configuration. Inside the coil with L inductivity one introduces the metal (Φ) to be melted [7]. By modifying the frequency of the Uinv voltage wave from the exit of the static converter and my altering the modulation degree (m=AS/AD) we can obtain the resonance of t ...
Evaluates: MAX4450 MAX4450 Evaluation Kit General Description Features
... The MAX4450 EV kit circuit’s output bandwidth is 5.25MHz at -3dB point and has an insertion loss greater than 20dB at 13.5MHz and greater than 40dB at 27MHz. Figure 5 illustrates the Signal Gain vs. Input Signal Frequency of the EV kit’s filtering circuit. The group delay variation across the bandwi ...
... The MAX4450 EV kit circuit’s output bandwidth is 5.25MHz at -3dB point and has an insertion loss greater than 20dB at 13.5MHz and greater than 40dB at 27MHz. Figure 5 illustrates the Signal Gain vs. Input Signal Frequency of the EV kit’s filtering circuit. The group delay variation across the bandwi ...
Electrical
... neutral wires (This could happen when electrical equipment is not working correctly, causing current “leakage” – known as a ground fault.) • If a ground fault is detected, the GFCI can shut off electricity flow in as little as 1/40 of a second, protecting you from a dangerous shock ...
... neutral wires (This could happen when electrical equipment is not working correctly, causing current “leakage” – known as a ground fault.) • If a ground fault is detected, the GFCI can shut off electricity flow in as little as 1/40 of a second, protecting you from a dangerous shock ...
UNIT IV
... bands of frequencies and reject others. Reactive networks are available that will freely pass desired band of frequencies while almost suppressing other bands of frequencies. Such reactive networks are called filters. ...
... bands of frequencies and reject others. Reactive networks are available that will freely pass desired band of frequencies while almost suppressing other bands of frequencies. Such reactive networks are called filters. ...
Slide 1
... Acceleration sensor (Accelerometer) CAPACITIVE • In accelerometer there is an inertial or dead mass which is displaced, with respect to the housing, when the there is acceleration • The sensor measures the mass displacement by various means, which is proportional to acceleration for small displacem ...
... Acceleration sensor (Accelerometer) CAPACITIVE • In accelerometer there is an inertial or dead mass which is displaced, with respect to the housing, when the there is acceleration • The sensor measures the mass displacement by various means, which is proportional to acceleration for small displacem ...
compensating for cpd in nc-afm: am-kpfm in uhv using
... oscillation controllers OC4 are used, one as PLL for tracking the frequency shift at f1, and the second as a lock-in to measure the amplitude of the cantilever second resonance. A Kelvin controller feedback loop minimizes the amplitude of the second resonance by adjuting the applied DC bias voltage. ...
... oscillation controllers OC4 are used, one as PLL for tracking the frequency shift at f1, and the second as a lock-in to measure the amplitude of the cantilever second resonance. A Kelvin controller feedback loop minimizes the amplitude of the second resonance by adjuting the applied DC bias voltage. ...
Forecasting - UniMAP Portal
... • ‘Transducer' is 'a device that transfers power from one system to another in the same or in the different form'. E.g. Thermistor with it associate circuit convert heat to electricity. ...
... • ‘Transducer' is 'a device that transfers power from one system to another in the same or in the different form'. E.g. Thermistor with it associate circuit convert heat to electricity. ...
305-261/262 Measurement Laboratory
... surface condition of the moving object. The manufacturer of the device specifies the output only for ideal conditions; hence the user must calibrate the transducer in-situ against the surface that will be used. Inductive proximity sensor The transducer used in this experiment is intended for use in ...
... surface condition of the moving object. The manufacturer of the device specifies the output only for ideal conditions; hence the user must calibrate the transducer in-situ against the surface that will be used. Inductive proximity sensor The transducer used in this experiment is intended for use in ...
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.