A Novel Single-Resistance-Controlled CFOA-Based
... impedances, single frequency [10], [12], as well as single-element-controlled sinusoidal oscillators [13] and square wave oscillators [14]. To the author’s knowledge, the oscillator proposed by [14] is the only CFOA-based square wave oscillator that has been reported in the literature so far. It use ...
... impedances, single frequency [10], [12], as well as single-element-controlled sinusoidal oscillators [13] and square wave oscillators [14]. To the author’s knowledge, the oscillator proposed by [14] is the only CFOA-based square wave oscillator that has been reported in the literature so far. It use ...
SOLUTIONS INT2/98
... almost all fields of mass spectrometry (including ICP-MS, GC-MS, LC-MS, TOF and SIMS). An electron multiplier is used to detect the presence of ion signals emerging from the mass analyser of a mass spectrometer. It is essentially the "eyes" of the instrument (see Figure 1). The task of the electron ...
... almost all fields of mass spectrometry (including ICP-MS, GC-MS, LC-MS, TOF and SIMS). An electron multiplier is used to detect the presence of ion signals emerging from the mass analyser of a mass spectrometer. It is essentially the "eyes" of the instrument (see Figure 1). The task of the electron ...
Document
... As the low frequency increases… The window for allowing ions out of plasma narrows. The IED narrows and broadens to a greater degree than without B-field. Ar, 40 mTorr, 300 sccm, 4 MHz, 40 MHz HF: 500 W ...
... As the low frequency increases… The window for allowing ions out of plasma narrows. The IED narrows and broadens to a greater degree than without B-field. Ar, 40 mTorr, 300 sccm, 4 MHz, 40 MHz HF: 500 W ...
a Low Cost Analog Multiplier AD633
... to the X inputs of the “next” AD633. The frequency control input, EC, connected to the Y inputs, varies the integrator gains with a calibration of 100 Hz/V. The accuracy is limited by the Y-input offsets. The practical tuning range of this circuit is 100:1. C2 (proportional to C1 and C3), R3, and R4 ...
... to the X inputs of the “next” AD633. The frequency control input, EC, connected to the Y inputs, varies the integrator gains with a calibration of 100 Hz/V. The accuracy is limited by the Y-input offsets. The practical tuning range of this circuit is 100:1. C2 (proportional to C1 and C3), R3, and R4 ...
Section 5 - "Neutralization"
... above the zero line as shown by the dimension, Ep. The voltage developed in the screen lead inductance places the screen at a negative voltage with respect to the anode voltage. The screen of the tube, S, is shown to be below the filament line, or negative, by the amount -E. If the circuit were perf ...
... above the zero line as shown by the dimension, Ep. The voltage developed in the screen lead inductance places the screen at a negative voltage with respect to the anode voltage. The screen of the tube, S, is shown to be below the filament line, or negative, by the amount -E. If the circuit were perf ...
Comparative Analysis of Tuning Range of Regulated
... obtain two equations of oscillating frequency as a function of passive components. Then, if we equate both of the equations, substitute the capacitance ratio. We can derive minimum required gain for the Colpitts based circuits. In contrast to the single ended Colpitts based CMOS oscillator. The cros ...
... obtain two equations of oscillating frequency as a function of passive components. Then, if we equate both of the equations, substitute the capacitance ratio. We can derive minimum required gain for the Colpitts based circuits. In contrast to the single ended Colpitts based CMOS oscillator. The cros ...
Pulsing - Positive / Negative Dual Grid Power Supply FlexPanel
... widths from 2 µsec to DC with a 500 nsec rise/fall time and repetition rates up to 5 kHz maximum can be achieved with appropriate TTL inputs. With this dual grid pulsing option, beam pulsing is accomplished using a TTL signal to control the two Grid supplies: one fixed negative and the other variabl ...
... widths from 2 µsec to DC with a 500 nsec rise/fall time and repetition rates up to 5 kHz maximum can be achieved with appropriate TTL inputs. With this dual grid pulsing option, beam pulsing is accomplished using a TTL signal to control the two Grid supplies: one fixed negative and the other variabl ...
417_1.PDF
... sequence generator on the digital interface section. The gain register information is stored in a FIFO, along with data to tag each data point with a gain path. ...
... sequence generator on the digital interface section. The gain register information is stored in a FIFO, along with data to tag each data point with a gain path. ...
Permanently reconfigured metamaterials due to
... metamaterials take their electromagnetic response mainly from their geometry rather than their chemistry, allowing remarkable freedom in design ingenuity. Here we introduce a new technique for geometric modification of the metamaterial itself. This reconfiguration is achieved through mass transfer ...
... metamaterials take their electromagnetic response mainly from their geometry rather than their chemistry, allowing remarkable freedom in design ingenuity. Here we introduce a new technique for geometric modification of the metamaterial itself. This reconfiguration is achieved through mass transfer ...
Electromagnetic Interference and Digital Circuits: An
... is either radiated from powerful radio transmitters, wireless network devices, mobile phones and PDAs, or intentionally generated for malicious reasons. These unintentional antennae can serve to couple RF noise into the core circuit [1][2][3]. RFI that is coupled by the system can induce unwanted cu ...
... is either radiated from powerful radio transmitters, wireless network devices, mobile phones and PDAs, or intentionally generated for malicious reasons. These unintentional antennae can serve to couple RF noise into the core circuit [1][2][3]. RFI that is coupled by the system can induce unwanted cu ...
Prep 4-5 - Oregon State University
... g. If an electron within an electric field is moving in the direction of the field lines, it is increasing its UE. True. Positive external work must be done on the electron to force it to move in the direction of the field. ...
... g. If an electron within an electric field is moving in the direction of the field lines, it is increasing its UE. True. Positive external work must be done on the electron to force it to move in the direction of the field. ...
Chapter 1: Semiconductor quantum dots
... A crystalline material which is size-restricted in three dimensions such that the electron wave functions are confined within its volume is called a quantum dot (QD). Due to this confinement the electronic properties of quantum dots depend on their size in the nanometer regime. 1,2 This effect, now ...
... A crystalline material which is size-restricted in three dimensions such that the electron wave functions are confined within its volume is called a quantum dot (QD). Due to this confinement the electronic properties of quantum dots depend on their size in the nanometer regime. 1,2 This effect, now ...
Colpitts oscillator
... consists of a gain device (such as a bipolar junction transistor, field effect transistor, operational amplifier, or vacuum tube) with its output connected to its input in a feedback loop containing a parallel LC circuit (tuned circuit) which functions as a bandpass filter to set the frequency of os ...
... consists of a gain device (such as a bipolar junction transistor, field effect transistor, operational amplifier, or vacuum tube) with its output connected to its input in a feedback loop containing a parallel LC circuit (tuned circuit) which functions as a bandpass filter to set the frequency of os ...
Klystron
A klystron is a specialized linear-beam vacuum tube, invented in 1937 by American electrical engineers Russell and Sigurd Varian, which is used as an amplifier for high radio frequencies, from UHF up into the microwave range. Low-power klystrons are used as oscillators in terrestrial microwave relay communications links, while high-power klystrons are used as output tubes in UHF television transmitters, satellite communication, and radar transmitters, and to generate the drive power for modern particle accelerators.In the klystron, an electron beam interacts with the radio waves as it passes through resonant cavities, metal boxes along the length of the tube. The electron beam first passes through a cavity to which the input signal is applied. The energy of the electron beam amplifies the signal, and the amplified signal is taken from a cavity at the other end of the tube. The output signal can be coupled back into the input cavity to make an electronic oscillator to generate radio waves. The gain of klystrons can be high, 60 dB (one million) or more, with output power up to tens of megawatts, but the bandwidth is narrow, usually a few percent although it can be up to 10% in some devices.A reflex klystron is an obsolete type in which the electron beam was reflected back along its path by a high potential electrode, used as an oscillator.The name klystron comes from the stem form κλυσ- (klys) of a Greek verb referring to the action of waves breaking against a shore, and the suffix -τρον (""tron"") meaning the place where the action happens. The name ""klystron"" was suggested by Hermann Fränkel, a professor in the classics department at Stanford University when the klystron was under development.