Passive Intermodulation Distortion in Connectors, Cable and
... Further investigation has also shown that when testing well matched, low loss devices such as cable assemblies and adapters, harmonics of the input signals can be transmitted through to the second duplexer. Since the duplexer is not well matched at harmonic frequencies, the signals can reflect back ...
... Further investigation has also shown that when testing well matched, low loss devices such as cable assemblies and adapters, harmonics of the input signals can be transmitted through to the second duplexer. Since the duplexer is not well matched at harmonic frequencies, the signals can reflect back ...
Temposonics®
... 2. The G-Series output signal, “(-) Stop” is not used when providing the backwards-compatible neuter type connection. However, this signal wire/connector pin is used for “RS-422 TX-” during serial programming of the sensor. When the sensor output is active, (not in programming mode), this signal mus ...
... 2. The G-Series output signal, “(-) Stop” is not used when providing the backwards-compatible neuter type connection. However, this signal wire/connector pin is used for “RS-422 TX-” during serial programming of the sensor. When the sensor output is active, (not in programming mode), this signal mus ...
J.W. Phinney and D.J. Perreault, “Filters with Active Tuning for Power Applications,” 2001 IEEE Power Electronics Specialists Conference , Vancouver, Canada, June 2001, pp. 363-370.
... ripple to acceptable levels. Ripple specifications imposed to observe conducted EMI limits or application constraints, however, can result in heavy, bulky filters which are detrimental to the transient performance of a power converter and contribute significantly to its cost. Resonant ripple filters ...
... ripple to acceptable levels. Ripple specifications imposed to observe conducted EMI limits or application constraints, however, can result in heavy, bulky filters which are detrimental to the transient performance of a power converter and contribute significantly to its cost. Resonant ripple filters ...
Comparative analysis of lightning overvoltages in distribution lines
... During numerous measurements and simulations a certain regularity has been noticed: wave front time of excitation impulse affects visibly overvoltages in particular elements of a power system. In order to confirm a level of overvoltage hazard and to determine the influence of wave-front time duratio ...
... During numerous measurements and simulations a certain regularity has been noticed: wave front time of excitation impulse affects visibly overvoltages in particular elements of a power system. In order to confirm a level of overvoltage hazard and to determine the influence of wave-front time duratio ...
Technical Information
... chemical resistance. It is not suitable where subjected to nuclear radiation and does not have good high voltage characteristics. FEP Teflon is extrudable in a manner similar to PVC and polyethylene. This means that long wire and cable lengths are available. TFE Teflon is extrudable in a hydraulic r ...
... chemical resistance. It is not suitable where subjected to nuclear radiation and does not have good high voltage characteristics. FEP Teflon is extrudable in a manner similar to PVC and polyethylene. This means that long wire and cable lengths are available. TFE Teflon is extrudable in a hydraulic r ...
VSWR and Antenna Tuners
... experience with the tuner! If you are comfortable with the next procedure, remove the cover of the tuner and turn the knobs until the moving capacitor plates are only half meshed with the stationary plates. If the knobs are pointing to half scale with the reference markings on the knobs and front co ...
... experience with the tuner! If you are comfortable with the next procedure, remove the cover of the tuner and turn the knobs until the moving capacitor plates are only half meshed with the stationary plates. If the knobs are pointing to half scale with the reference markings on the knobs and front co ...
PowerPoint Presentation, click here.
... WHAT IS VSWR – THE THREE DEMO ANTENNAS – WHY VSWR IS NOT THE WHOLE STORY RELATIONSHIP BETWEEN VSWR AND POWER TRANSFER THREE IMPORTANT ISSUES WITH ANTENNAS – VSWR (POWER TRANSFERRED INTO ANTENNA) – ANTENNA EFFICIENCY (ANTENNA LOSSES) – OPTIMUM RADIATION (IS NOT AT THE LOWEST VSWR) CABLES AND CONNECTO ...
... WHAT IS VSWR – THE THREE DEMO ANTENNAS – WHY VSWR IS NOT THE WHOLE STORY RELATIONSHIP BETWEEN VSWR AND POWER TRANSFER THREE IMPORTANT ISSUES WITH ANTENNAS – VSWR (POWER TRANSFERRED INTO ANTENNA) – ANTENNA EFFICIENCY (ANTENNA LOSSES) – OPTIMUM RADIATION (IS NOT AT THE LOWEST VSWR) CABLES AND CONNECTO ...
PENAPIS LULUS RUANG GELOMBANG MIKRO
... A bandpass filter is an electronic device or circuit that allows signals between two specific frequencies to pass, but that discriminates against signals at other frequencies. Some bandpass filters require an external source of power and employ active components such as transistors and integrated ci ...
... A bandpass filter is an electronic device or circuit that allows signals between two specific frequencies to pass, but that discriminates against signals at other frequencies. Some bandpass filters require an external source of power and employ active components such as transistors and integrated ci ...
Cable Testing
... duration. Three common voltage sources used for withstand testing are DC, power frequency AC, and VLF AC. It is important to recognize that Type 1 field tests may trigger failure mechanisms within a cable that will not show up during the test but may cause subsequent failures in service. Type 2 – No ...
... duration. Three common voltage sources used for withstand testing are DC, power frequency AC, and VLF AC. It is important to recognize that Type 1 field tests may trigger failure mechanisms within a cable that will not show up during the test but may cause subsequent failures in service. Type 2 – No ...
TD-L1630 - skipper
... B) computer-controlled synthesizer with a triple super-heterodyne circuit provides high sensitivity, accuracy and stability. Thus, the unit is very suitable for stand-by reception. C) A new tracking technique is adopted to give a high stability even receiving a weak signal with low S/N ratio. D) Hol ...
... B) computer-controlled synthesizer with a triple super-heterodyne circuit provides high sensitivity, accuracy and stability. Thus, the unit is very suitable for stand-by reception. C) A new tracking technique is adopted to give a high stability even receiving a weak signal with low S/N ratio. D) Hol ...
Satellite Communications
... capacitor which again has an electrostatic voltage potential across it, although it is now of the opposite polarity. The capacitor now starts to discharge again back through the coil and the whole process is repeated, with the polarities changed and continues as the energy is passed back and forth p ...
... capacitor which again has an electrostatic voltage potential across it, although it is now of the opposite polarity. The capacitor now starts to discharge again back through the coil and the whole process is repeated, with the polarities changed and continues as the energy is passed back and forth p ...
150 - SLAC
... produce the required rf voltage and de-Qing the remaining cavities. One simple technique that appears to be moderately effective is to turn off the screen voltage to reduce the tube plate resistance. This technique is estimated to de-Q the cavities by a factor of 3. 3. Using feed-forward on all the ...
... produce the required rf voltage and de-Qing the remaining cavities. One simple technique that appears to be moderately effective is to turn off the screen voltage to reduce the tube plate resistance. This technique is estimated to de-Q the cavities by a factor of 3. 3. Using feed-forward on all the ...
Proper Coil Drive is Critical to Good Relay and
... If the coil current transition looks like Figure “B” (which indicates that the armature “stalled” momentarily and did not seat firmly) something is wrong with the drive circuit that needs to be corrected. DC coil latching relays with remanent magnet systems: DC latching relays using remanent magnet ...
... If the coil current transition looks like Figure “B” (which indicates that the armature “stalled” momentarily and did not seat firmly) something is wrong with the drive circuit that needs to be corrected. DC coil latching relays with remanent magnet systems: DC latching relays using remanent magnet ...
Commutator
... Interpoles: Small poles placed between main poles Materials Used: Cast steel (or) Punched from sheet steel without pole shoes Purposes: To neutralize cross magnetizing armature MMF To produce flux density required to generate rotational voltage in the coil undergoing commutation to cancel ...
... Interpoles: Small poles placed between main poles Materials Used: Cast steel (or) Punched from sheet steel without pole shoes Purposes: To neutralize cross magnetizing armature MMF To produce flux density required to generate rotational voltage in the coil undergoing commutation to cancel ...
Ch 17 Electromagnetic Induction
... coil with the external circuit every half turn of the coil. Thus the current always flows through the external circuit in one direction. (c) The induced voltage can be increased by: (i) rotating the coil at a higher speed, (ii) increasing the number of turns of the coil, (iii)winding the coil on a s ...
... coil with the external circuit every half turn of the coil. Thus the current always flows through the external circuit in one direction. (c) The induced voltage can be increased by: (i) rotating the coil at a higher speed, (ii) increasing the number of turns of the coil, (iii)winding the coil on a s ...
O A RIGINAL RTICLES
... 2. Active inductor: Two main weaknesses of band-pass filters with spiral inductors and transformers are the low pass-band center frequency stem from the large spiral-substrate capacitance and the high insertion loss due to both the skin-effect induced parasitic resistance of the spiral and the subst ...
... 2. Active inductor: Two main weaknesses of band-pass filters with spiral inductors and transformers are the low pass-band center frequency stem from the large spiral-substrate capacitance and the high insertion loss due to both the skin-effect induced parasitic resistance of the spiral and the subst ...
Series CA7 Motor Control Electrical Contactors from Sprecher + Schuh
... clearances exist (≥0.3mm) to ensure that the auxiliary contacts do not change state when coil power is removed and the device tries to open. This is a requirement in safety circuits per IEC 60947-5-1. Reliability is further assured by “crossstamped” auxiliary contacts, which provide multi-point reli ...
... clearances exist (≥0.3mm) to ensure that the auxiliary contacts do not change state when coil power is removed and the device tries to open. This is a requirement in safety circuits per IEC 60947-5-1. Reliability is further assured by “crossstamped” auxiliary contacts, which provide multi-point reli ...
Design Practices for Using a LONWORKS® Free Topology Channel
... Train applications cannot use PCB spark gaps due to the need for conformal coating or potted PCBs. In figure 3, the spark gaps have been replaced with encapsulated discharge devices Z1 and Z2 which are connected to chassis ground. Each of these devices has a discharge value of approximately 300 volt ...
... Train applications cannot use PCB spark gaps due to the need for conformal coating or potted PCBs. In figure 3, the spark gaps have been replaced with encapsulated discharge devices Z1 and Z2 which are connected to chassis ground. Each of these devices has a discharge value of approximately 300 volt ...
Induction
... which I desire to operate and'which is to a whole train of oscillations concentrated in act as the secondary, still retaining the con the short interval of time of one oscillation. 15 nection with the exhaust pump, usually in This obviously results in saving the fric troducing more of the vapor than ...
... which I desire to operate and'which is to a whole train of oscillations concentrated in act as the secondary, still retaining the con the short interval of time of one oscillation. 15 nection with the exhaust pump, usually in This obviously results in saving the fric troducing more of the vapor than ...
Loading coil
A loading coil or load coil is an inductor that is inserted into an electronic circuit to increase its inductance. A loading coil is not a transformer to provide coupling to another other circuit. The term originated in the 19th century for inductors used to prevent signal distortion in long-distance telegraph transmission cables. The term is also used for inductors in radio antennas, or between the antenna and its feedline, to make an electrically short antenna resonant at its operating frequency.Loading coils are historically also known as Pupin coils after Mihajlo Pupin, especially when used for the Heaviside condition and the process of inserting them is sometimes called pupinization.The concept of loading coils was discovered by Oliver Heaviside in studying the problem of slow signalling speed of the first transatlantic telegraph cable in the 1860s. He concluded additional inductance was required to prevent amplitude and time delay distortion of the transmitted signal. The mathematical condition for distortion-free transmission is known as the Heaviside condition. Previous telegraph lines were overland or shorter and hence had less delay, and the need for extra inductance was not as great. Submarine communications cables are particularly subject to the problem, but early 20th century installations using balanced pairs were often continuously loaded with iron wire or tape rather than discretely with loading coils, which avoided the sealing problem.