EN-ES ES-EN | 1 | A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9
Z bus matrix
EN: Z bus matrix, bus impedance matrixES: matriz de impedancias en vacío, matriz de impedancias nodales
Definition EN: an inverse bus admittance matrix
Z marker beacon
EN: Z marker beaconES: radiofaro marcador tipo Z
Definition EN: in aviation,a form of marker beacon radiating a narrow conical beam along the vertical axis of the cone of silence of a track beacon
z-matrix
EN: z-matrixES: matriz z
Definition EN: array of the terms,each having the dimension of impedance,that normally characterized certain properties of an electrical network
z-parameter
EN: z-parameterES: parámetro z
Definition EN: relationship having the dimensions of impedance,partially defining the electrical relationships at the terminals of a two-port network
Z-Theta chart
EN: Z-Theta chartES: diagrama Z-Theta, diagrama polar
Definition EN: graphical representation in polar coordinates of the amplitude reflection factor r,for a lossless uniform transmission line with characteristic impedance Z0:in terms of the complex impedance Z by two families of orthogonal circles on each of which either the modulus Z or the argument Theta has a constant value,where Z = Z/Theta is the complex impedance in the direction of propagation of the incident wave at the point at which the amplitude reflection factor is evaluated
Z-transform
EN: Z-transformES: transformada en Z
Definition EN: Laplace transform of a periodically sampled signal with change of variable Z = e power Ts,where T is the sampling period
Zener breakdown
EN: Zener breakdownES: perforación por efecto Zener
EN: tunnel breakdown
ES: perforación por efecto túnel
EN: Zener breakdown of a PN junction
ES: ruptura Zener
Definition EN: the breakdown caused by the transition of electrons from the valence band to the conduction band due to tunnel action under the influence of a strong electric field in the reverse direction
Zener characteristic
EN: Zener characteristicES: característica Zener
Definition EN: rapid increase in current in the reverse direction of a p-n junction,resulting wholly or in part from the Zener effect
Zener current
EN: Zener currentES: corriente Zener
Definition EN: current through a p-n junction resulting from the Zener effect; i.e. ,the extra current flowing as a result of Zener breakdown
Zener diode
EN: Zener diode, avalanche diode, breakdown diodeES: diodo zener
Definition EN: a diode with the characteristic of showing sharp increase of reverse current at a certain negative potential,and suitable for use as voltage reference
Definition ES: limita la tensión a más o menos el valor de diseño al presentar una baja impedancia a tensiones más altas
Zener diode
EN: Zener diode, breakdown diode, avalanche diodeES: diodo zener
Definition EN: a diode with the characteristic of showing sharp increase of reverse current at a certain negative potential,and suitable for use as voltage reference
Definition ES: limita la tensión a más o menos el valor de diseño al presentar una baja impedancia a tensiones más altas
Zener diode
EN: Zener diodeES: diodo zener
Definition EN: a diode with the characteristic of showing sharp increase of reverse current at a certain negative potential,and suitable for use as voltage reference
Definition ES: limita la tensión a más o menos el valor de diseño al presentar una baja impedancia a tensiones más altas
Zener effect
EN: Zener effectES: efecto Zener
Definition EN: phenomenon in which,under the influence of an electric field,an electron crosses the energy-band gap from valence band to conduction band by tunnelling to a region in which the final energy is the same as the initial energy,resulting in the direct disruption of the valence bond
Zener emission
EN: Zener emissionES: emisión Zener
Definition EN: emission of electrons across a thin(approx.5 micrometers)layer of dielectric from a semiconductor material to another semiconductor or to a conductor
Zener knee
EN: Zener knee, Zener voltage, Zener knee voltageES: tensión de Zener
Definition EN: onset voltage of the Zener effect at which the p-n junction characteristic enters the breakdown region; the potential required to initiate breakdown, defined as the potential at a particular value of the reverse current such as 1A
Zener knee voltage
EN: Zener knee voltage, Zener knee, Zener voltageES: tensión de Zener
Definition EN: onset voltage of the Zener effect at which the p-n junction characteristic enters the breakdown region; the potential required to initiate breakdown, defined as the potential at a particular value of the reverse current such as 1A
Zener level detector
EN: Zener level detectorES: detector de nivel Zener
Definition EN: level detector in which temperature drift is reduced by use of a Zener diode to compensate a transistor; e.g. ,Zener diode in series with emitter-follower load, AGC output across load being such as to make the oscillator under control have an amplitude controlled by the Zener diode voltage
Zener noise
EN: Zener noiseES: ruido Zener
Definition EN: random electrical noise caused when electrons cross from one side of a junction to the other as a result of the Zener effect,each such electron causing an impulse of area /q/ in the current-vs-time relationship
Zener resistance
EN: Zener resistance, Zener slopeES: pendiente Zener, resistencia Zener
Definition EN: rate of increase of current with potential in the Zener breakdown region of a p-n junction characteristic,defined at a particular current value
Zener slope
EN: Zener slope, Zener resistanceES: pendiente Zener, resistencia Zener
Definition EN: rate of increase of current with potential in the Zener breakdown region of a p-n junction characteristic,defined at a particular current value
Zener slope
EN: Zener slopeES: pendiente Zener
EN: Zener resistance
ES: resistencia Zener
Definition EN: rate of increase of current with potential in the Zener breakdown region of a p-n junction characteristic,defined at a particular current value
Zener theory
EN: Zener theoryES: teoría de Zener
Definition EN: identification of two processes:a)the tunnelling of electrons through a potential barrier with finite dimensions in a semiconductor piece,and b),electrons crossing the band gap from the valence band to the conduction band,the identification introducing a duality of space and energy
Zener voltage
EN: Zener voltage, Zener knee, Zener knee voltageES: tensión de Zener
Definition EN: onset voltage of the Zener effect at which the p-n junction characteristic enters the breakdown region; the potential required to initiate breakdown, defined as the potential at a particular value of the reverse current such as 1A
Zener voltage
EN: Zener voltageES: tensión de Zener
Definition EN: onset voltage of the Zener effect at which the p-n junction characteristic enters the breakdown region; the potential required to initiate breakdown, defined as the potential at a particular value of the reverse current such as 1A
Zener-diode combination
EN: Zener-diode combination, temperature-compensated combinationES: combinación de diodos Zener, combinación de temperatura compensada
Definition EN: package consisting of two or more Zener diodes connected in series(with the possible inclusion of forward-biased diodes for fine adjustment)that has a composite operating voltage almost independent of temperature,often used as a highly-stable reference voltage
zenith angle
EN: zenith angle, zenith distanceES: distancia cenital, ángulo cenital
Definition EN: the angle between the beam from the sun and the vertical
zero balance
EN: zero balanceES: balance cero
Definition EN: the output signal of the transducer with rated excitation and with no-load applied,usually expressed as a percent of rated output
zero crossing-Period
EN: zero crossing-PeriodES: periodo de los pasos por el punto cero
Definition EN: the duration of the wave record divided by the number of times the record trace crosses the mean water level in an upward direction during the record
zero error
EN: zero errorES: desviación residual
Definition EN: the delay time occurring within the transmitter and receiver circuits of a radar system
zero level
EN: zero levelES: nivel cero
Definition EN: in telecommunications systems,1 mW of power,normally across a load of 600 ohms
Definition ES: nivel de referencia para la comparación de intensidades sonoras o potencias de señal. En los sistemas de audiofrecuencia el nivel cero se toma igual-mW. En medidas acústicas se toma igual al umbral de audibilidad. En telefonía, se toma igual a 1 mW a la frecuencia de 1000 Hz
zero pinch-off voltage
EN: zero pinch-off voltageES: tensión de estrangulamiento cero
Definition EN: gate voltage of zero at the pinch-off condition of a particular MOST; infers that the device has zero effective doping level at the surface and, strictly, is neither a depletion nor an enhancement device
zero point
EN: zero pointES: cero, punto cero
Definition EN: operating point of an active device or system that is identical with that specified, expected, or required; i.e. ,the drift from the point is zero
zero point
EN: zero pointES: punto cero
Definition EN: the electrical zero point where zero millivolts would be displayed
zero potential
EN: zero potential, neutralES: potencial de referencia, neutro, potencial cero
Definition EN: potential of a point at infinite distance,used for defining capacitance
zero power resistance
EN: zero power resistanceES: resistencia en ausencia de energía
Definition EN: the resistance of a thermistor or resistance temperature detector element with no power being dissipated
zero return
EN: zero returnES: retorno a cero
Definition EN: the difference in zero balance measured immediately before rated load application of specified duration and measured after removal of the load,and when the output has stabilised
zero voltage switching
EN: zero voltage switchingES: conmutación a tensión nula, conmutación por voltaje cero
Definition EN: the making or breaking of circuit timed such that the transition occurs when the voltage wave form crosses zero voltage
zero-beat
EN: zero-beatES: batido cero
EN: zero beat
ES: heterodina cero
EN: batido cero
ES: pulsación cero
Definition EN: the condition in which a circuit is oscillating at the exact frequency of an input signal,so no beat tone is produced or heard
Definition ES: condición en que la frecuencia de un circuito oscilante es exactamente igual a la de una señal entrante, por lo cual la frecuencia de pulsación es nula y, por tanto, inaudible
zero-bias drain current
EN: zero-bias drain currentES: corriente de drenaje polarización cero
Definition EN: drain current of field-effect transistor, flowing in the absence of gate bias; function of both channel resistivity and pinch-off voltage
Zeta potential
EN: Zeta potentialES: potencial zeta
Definition EN: the potential across the diffuse layer of ions surrounding a charged dispersed particle
Ziegler method
EN: Ziegler method, majority carrier correction method, MCC methodES: método de corrección de portador en mayoría, método Ziegler
Definition EN: a method for measuring doping profiles that corrects for the onset of accumulation at shallow depths
Definition ES: método para medir perfiles de dopado que corrige la acumulación en bajas profundidades
zinc-air cell
EN: zinc-air cellES: pila de aire zinc
Definition EN: a primary cell in which atmospheric oxygen is reduced at a nickel electrode and zinc is oxidised as a counter-reaction
zinc-carbon cell
EN: zinc-carbon cellES: pila de cinc-carbón
Definition EN: a primary cell with a zinc anode and a manganese-dioxide cathode and with a hydrous electrolyte from ammonium chloride and/or zinc chloride
zone levelling
EN: zone levellingES: nivelación por zona, nivelación de zona
Definition EN: the passing of one or more molten zones through a semiconductor crystal for the purpose of uniformly distributing impurities in the crystal
zone pass
EN: zone passES: paso de zona
Definition EN: passage of a molten zone from one end of a long ingot to the other,in a zone-refining operation,the termination of the zone pass being before the ingot tip in some cases because of technical difficulties
EN-ES ES-EN | 1 | A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9
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