Pulsed Nuclear Magnetic Resonance
... The magnetic field between the magnet’s pole faces is only homogeneous enough to optimally support NMR over the central ~1” diameter of the pole faces. Move the NMR shielding box vertically along the graduated vertical post and observe the effects of a field gradient on the decay of the transient si ...
... The magnetic field between the magnet’s pole faces is only homogeneous enough to optimally support NMR over the central ~1” diameter of the pole faces. Move the NMR shielding box vertically along the graduated vertical post and observe the effects of a field gradient on the decay of the transient si ...
Aalborg Universitet Reference-Frame Virtual Impedance Loop—Part I: Control Principle
... reactive powers and then average them through low-pass filters (LPF) whose bandwidth deteriorate the system transient response [15]. Even in three phase systems that the active and reactive power can be calculated by using the instantaneous power theory, a post-filter processing is necessary in orde ...
... reactive powers and then average them through low-pass filters (LPF) whose bandwidth deteriorate the system transient response [15]. Even in three phase systems that the active and reactive power can be calculated by using the instantaneous power theory, a post-filter processing is necessary in orde ...
Application Note
... Take a look at the 1910 Inductance Analyzer. Although specifically designed for production testing of inductors and coils, in addition to measuring inductance (L), the 1910 instrument is capable of measuring C, DF, Q, Y, G, B, Z, R, X, ESR, , DCR as well as the AC & DC voltage and current to the DU ...
... Take a look at the 1910 Inductance Analyzer. Although specifically designed for production testing of inductors and coils, in addition to measuring inductance (L), the 1910 instrument is capable of measuring C, DF, Q, Y, G, B, Z, R, X, ESR, , DCR as well as the AC & DC voltage and current to the DU ...
to notes15
... a. Step voltage regulator: It is a special transformer called an autotransformer having ability to automatically change its turns ratio. May be placed anywhere along the feeder. b.Load tap changer: similar to a voltage regulator, but always in the substation. c. Shunt capacitors: Place capacitors al ...
... a. Step voltage regulator: It is a special transformer called an autotransformer having ability to automatically change its turns ratio. May be placed anywhere along the feeder. b.Load tap changer: similar to a voltage regulator, but always in the substation. c. Shunt capacitors: Place capacitors al ...
As we discussed earlier capacitors and coils resist the flow
... Typically, resistors and or capacitors and inductors are combined in a circuit so the collective impedance expressed in ohms is in the range of several thousand ohms to several megohms. The capacitance of capacitors is usually measured in micro or pico farads. The inductance of coils is usually meas ...
... Typically, resistors and or capacitors and inductors are combined in a circuit so the collective impedance expressed in ohms is in the range of several thousand ohms to several megohms. The capacitance of capacitors is usually measured in micro or pico farads. The inductance of coils is usually meas ...
Electric and Magnetic Fields from Simple Circuit Shapes
... for V in volts, A in square centimeters, and D in meters. At this point, a few remarks are in order: 1. We now have an expression for E fields that can be calculated by entering the drive voltage, which often is more readily known to the circuit designer than the current. 2. Except for very low-impe ...
... for V in volts, A in square centimeters, and D in meters. At this point, a few remarks are in order: 1. We now have an expression for E fields that can be calculated by entering the drive voltage, which often is more readily known to the circuit designer than the current. 2. Except for very low-impe ...
Sensitive radio-frequency measurements of a quantum dot by tuning
... at a point of maximum transconductance. With a modulation voltage now applied to a gate, Fig. 4(a) shows the sideband SNR as a function of f C for two different varactor settings. Again, the perfect matching condition (still corresponding to V S ¼ 13.5 V) yields a bigger SNR. Figure 4(b) shows the S ...
... at a point of maximum transconductance. With a modulation voltage now applied to a gate, Fig. 4(a) shows the sideband SNR as a function of f C for two different varactor settings. Again, the perfect matching condition (still corresponding to V S ¼ 13.5 V) yields a bigger SNR. Figure 4(b) shows the S ...
Parametric Average-Value Model of Synchronous Machine
... depicted in Fig. 4(b), wherein the generator is represented by a proper state model with stator currents as outputs and stator voltages as inputs. In this way, the generator can be readily modeled using classical Park’s equations (A.1)–(A.14) [16]. This, in turn, suggests that the input and output o ...
... depicted in Fig. 4(b), wherein the generator is represented by a proper state model with stator currents as outputs and stator voltages as inputs. In this way, the generator can be readily modeled using classical Park’s equations (A.1)–(A.14) [16]. This, in turn, suggests that the input and output o ...
Smith Charts
... What about all these rulers below the Smith chart (4) Third ruler / left, marked as RFL.COEFF,E or I = gives us the modulus (= absolute value) of the reflection coefficient in linear scale. Note that since we have the modulus we can refer it both to voltage or current as we have omitted the sign, w ...
... What about all these rulers below the Smith chart (4) Third ruler / left, marked as RFL.COEFF,E or I = gives us the modulus (= absolute value) of the reflection coefficient in linear scale. Note that since we have the modulus we can refer it both to voltage or current as we have omitted the sign, w ...
LT5519 - 0.7GHz to 1.4GHz High Linearity
... performance LO buffer and bias/enable circuits. The RF and LO ports may be driven differentially; however, they are intended to be used in single-ended mode by connecting one input of each pair to ground. The IF input ports must be DC-isolated from the source and driven differentially. The IF input ...
... performance LO buffer and bias/enable circuits. The RF and LO ports may be driven differentially; however, they are intended to be used in single-ended mode by connecting one input of each pair to ground. The IF input ports must be DC-isolated from the source and driven differentially. The IF input ...
Pulsed Nuclear Magnetic Resonance
... The magnetic field between the magnet’s pole faces is only homogeneous enough to optimally support NMR over the central ~1” diameter of the pole faces. Move the NMR shielding box vertically along the graduated vertical post and observe the effects of a field gradient on the decay of the transient si ...
... The magnetic field between the magnet’s pole faces is only homogeneous enough to optimally support NMR over the central ~1” diameter of the pole faces. Move the NMR shielding box vertically along the graduated vertical post and observe the effects of a field gradient on the decay of the transient si ...
wide bandwidth low cost saw notch filters
... Element SAW notch filter, as generated by the circuit simulation program using a COM analysis for the SAW. The notch filter has a total notch depth of over -35dB, a -20dB stopband width of over 100 kHz, a -3dB bandwidth of less than 280 kHz, and a passband loss of less than -3dB. Figure 7 shows the ...
... Element SAW notch filter, as generated by the circuit simulation program using a COM analysis for the SAW. The notch filter has a total notch depth of over -35dB, a -20dB stopband width of over 100 kHz, a -3dB bandwidth of less than 280 kHz, and a passband loss of less than -3dB. Figure 7 shows the ...
11. High-Speed Board Layout Guidelines Introduction
... transmission line tightly to the ground plane and help decouple it from adjacent signals. Use differential routing techniques where possible, especially for critical nets (i.e., match the lengths as well as the turns that each trace goes through). If there is significant coupling, route single-ended ...
... transmission line tightly to the ground plane and help decouple it from adjacent signals. Use differential routing techniques where possible, especially for critical nets (i.e., match the lengths as well as the turns that each trace goes through). If there is significant coupling, route single-ended ...
Nominal impedance
Nominal impedance in electrical engineering and audio engineering refers to the approximate designed impedance of an electrical circuit or device. The term is applied in a number of different fields, most often being encountered in respect of:The nominal value of the characteristic impedance of a cable or other form of transmission line.The nominal value of the input, output or image impedance of a port of a network, especially a network intended for use with a transmission line, such as filters, equalisers and amplifiers.The nominal value of the input impedance of a radio frequency antennaThe actual impedance may vary quite considerably from the nominal figure with changes in frequency. In the case of cables and other transmission lines, there is also variation along the length of the cable, if it is not properly terminated. It is usual practice to speak of nominal impedance as if it were a constant resistance, that is, it is invariant with frequency and has a zero reactive component, despite this often being far from the case. Depending on the field of application, nominal impedance is implicitly referring to a specific point on the frequency response of the circuit under consideration. This may be at low-frequency, mid-band or some other point and specific applications are discussed in the sections below.In most applications, there are a number of values of nominal impedance that are recognised as being standard. The nominal impedance of a component or circuit is often assigned one of these standard values, regardless of whether the measured impedance exactly corresponds to it. The item is assigned the nearest standard value.