Compensating for Varying Material Conditions in Resistance Welding
... limited in their ability to cope with varying levels of plating and oxides. When constant current is used on heavily oxidized parts, the power supply ramps the voltage to very high levels in order to achieve the initial current flow. The rapid input of current, along with the high voltage level is l ...
... limited in their ability to cope with varying levels of plating and oxides. When constant current is used on heavily oxidized parts, the power supply ramps the voltage to very high levels in order to achieve the initial current flow. The rapid input of current, along with the high voltage level is l ...
Unit 2 Signals
... The continuous analogue signal varies continuously between a minimum level and a maximum level. It could be representative of a speech or audio signal for example. The discrete digital signal assumes a finite number of logic levels. A 2 level signal is shown in the example above. Typically a high vo ...
... The continuous analogue signal varies continuously between a minimum level and a maximum level. It could be representative of a speech or audio signal for example. The discrete digital signal assumes a finite number of logic levels. A 2 level signal is shown in the example above. Typically a high vo ...
a possible water depth measuring system using ultrasonic wave
... [email protected] Abstract-To measure the depth of water or detection of obstacle present inside the water, a simple technical method is used. In this method, transducer of both transmitter and receiver are placed just below the surface of water. Ultrasonic wave are generated by the gen ...
... [email protected] Abstract-To measure the depth of water or detection of obstacle present inside the water, a simple technical method is used. In this method, transducer of both transmitter and receiver are placed just below the surface of water. Ultrasonic wave are generated by the gen ...
High voltage pulse generators and spark gap for gaseous discharge
... Many triggered spark gap designs already exist [8-131, but they are generally complicated to reproduce due to the different materials used in their manufacturing and their diverse characteristics, according to specific applications. Our design has the advantage of being versatile, efficient, economi ...
... Many triggered spark gap designs already exist [8-131, but they are generally complicated to reproduce due to the different materials used in their manufacturing and their diverse characteristics, according to specific applications. Our design has the advantage of being versatile, efficient, economi ...
Datasheet - Mouser Electronics
... All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. ...
... All information is subject to TT Electronics’ own data and is considered accurate at time of going to print. ...
RLC Circuits Note
... comparing the response at the bottom of the notch with the response at low or high frequency. Why doesn’t the response actually go to zero at the bottom of the notch? Print DPO displays, exhibiting input and output signals, for frequencies below, at and above the notch. Asymptotic notation A filte ...
... comparing the response at the bottom of the notch with the response at low or high frequency. Why doesn’t the response actually go to zero at the bottom of the notch? Print DPO displays, exhibiting input and output signals, for frequencies below, at and above the notch. Asymptotic notation A filte ...
VIGI-Lux IR Illuminator MVS 5760 Series
... ©2006 Excelitas Technologies Corp. All rights reserved. The Excelitas logo and design are registered trademarks of Excelitas Technologies Corp. VIGI-Lux is a trademark of Excelitas Technologies Corp. or its subsidiaries in the United States and other countries. All other trademarks not owned by Exce ...
... ©2006 Excelitas Technologies Corp. All rights reserved. The Excelitas logo and design are registered trademarks of Excelitas Technologies Corp. VIGI-Lux is a trademark of Excelitas Technologies Corp. or its subsidiaries in the United States and other countries. All other trademarks not owned by Exce ...
Simulated Inductance
... MatLAB: Bode Plots • Once you have entered the transfer function into MatLAB, you can use a predefined function ‘bode’ to automatically generate plots of the magnitude and phase vs. frequency. Enter: bode(H) ...
... MatLAB: Bode Plots • Once you have entered the transfer function into MatLAB, you can use a predefined function ‘bode’ to automatically generate plots of the magnitude and phase vs. frequency. Enter: bode(H) ...
High-speed Sample and Hold using Low Temperature
... electro-optic signals are nearly identical. This extremely flat frequency response up to 10 GHz indicates a ps order sampling gate width and potential for much higher sampling rates. ...
... electro-optic signals are nearly identical. This extremely flat frequency response up to 10 GHz indicates a ps order sampling gate width and potential for much higher sampling rates. ...
Well Controlled Audio Noise Source
... A white noise source can be constructed from a zener diode or reverse-biased base-emitter junction, then amplified up to a useful range. These circuits work but they are temperature sensitive and not predictably calibrated. Another solution is to use a pseudo-random sequence (PRS) generator, which w ...
... A white noise source can be constructed from a zener diode or reverse-biased base-emitter junction, then amplified up to a useful range. These circuits work but they are temperature sensitive and not predictably calibrated. Another solution is to use a pseudo-random sequence (PRS) generator, which w ...
Frequency Response with LTspice IV - csserver
... the AC Analysis tab. In Figure 2 parameters are set to perform an AC Analysis on frequencies between 10 Hz and 1 kHz. The analysis will be performed at 30 frequencies per decade. (1 kHz is 2 decades above 10 Hz, so the analysis will be run at a total of 60 different frequencies.) After the simulatio ...
... the AC Analysis tab. In Figure 2 parameters are set to perform an AC Analysis on frequencies between 10 Hz and 1 kHz. The analysis will be performed at 30 frequencies per decade. (1 kHz is 2 decades above 10 Hz, so the analysis will be run at a total of 60 different frequencies.) After the simulatio ...
Chapter 4_part 1
... used. The value of the signal is measured at certain intervals in time. Each measurement is referred to as a sample. When the continuous analog signal is sampled at a frequency F, the resulting discrete signal has more frequency components than did the analog signal. To be precise, the frequency c ...
... used. The value of the signal is measured at certain intervals in time. Each measurement is referred to as a sample. When the continuous analog signal is sampled at a frequency F, the resulting discrete signal has more frequency components than did the analog signal. To be precise, the frequency c ...
The GEOSAT Follow-on (GFO) Altimeter
... GEOSAT radar altimeter, developed by JHU/APL, was an enormous success. Built with early 1980's technology, the GEOSAT altimeter weighed 191 pounds and consumed 146 watts. The GFO radar altimeter, under development by E-Systems Inc., will achieve the GEOSAT measurement capability, but at one-third th ...
... GEOSAT radar altimeter, developed by JHU/APL, was an enormous success. Built with early 1980's technology, the GEOSAT altimeter weighed 191 pounds and consumed 146 watts. The GFO radar altimeter, under development by E-Systems Inc., will achieve the GEOSAT measurement capability, but at one-third th ...
Comparative analysis of 36, 48, 60 pulse AC-DC
... This paper a multi-pulse converter for high voltage & high power application for example as in HVDC. The technique shown is based on dc current reinjection. Moreover, a control strategy over the whole range of phase delay angle is obtained along with complicated input current and output voltage stud ...
... This paper a multi-pulse converter for high voltage & high power application for example as in HVDC. The technique shown is based on dc current reinjection. Moreover, a control strategy over the whole range of phase delay angle is obtained along with complicated input current and output voltage stud ...
Test6-CircuitNoiseDensityTest
... TEK -- Tektronix Explanation of tests: The input signal will be generated by the function generators, which are connected to the input of the FPGA Controlled Amplifier Board. There are 8 different frequency ranges, and the team will use middle points of the frequency ranges (table ). Then, the team ...
... TEK -- Tektronix Explanation of tests: The input signal will be generated by the function generators, which are connected to the input of the FPGA Controlled Amplifier Board. There are 8 different frequency ranges, and the team will use middle points of the frequency ranges (table ). Then, the team ...
Operating the Pulsed Laser Diode SPL LL90_3
... DC voltage. Each time the gate of the MOSFET is triggered, the capacitors are discharged via the laser chip leading to a short and high-amp current pulse. These high-amp current pulses are required to obtain the high peak power laser emission (at charge voltage of 18.5V a current pulse of up to 30A ...
... DC voltage. Each time the gate of the MOSFET is triggered, the capacitors are discharged via the laser chip leading to a short and high-amp current pulse. These high-amp current pulses are required to obtain the high peak power laser emission (at charge voltage of 18.5V a current pulse of up to 30A ...
Instruments for Radiation Detection and Measurement
... • Scintillation detectors consist of scintilator emitting flashes of light after absorbing gamma or x radiation. The light photons produced are then converted to an electrical pulse by means of a photomultiplier tube. The pulse is amplified by a linear amplifier, sorted by a pulse-height analyzer a ...
... • Scintillation detectors consist of scintilator emitting flashes of light after absorbing gamma or x radiation. The light photons produced are then converted to an electrical pulse by means of a photomultiplier tube. The pulse is amplified by a linear amplifier, sorted by a pulse-height analyzer a ...
Chirp compression
The chirp pulse compression process transforms a long duration frequency-coded pulse into a narrow pulse of greatly increased amplitude. It is a technique used in radar and sonar systems because it is a method whereby a narrow pulse with high peak power can be derived from a long duration pulse with low peak power. Furthermore, the process offers good range resolution because the half-power beam width of the compressed pulse is consistent with the system bandwidth.The basics of the method for radar applications were developed in the late 1940s and early 1950s, but it was not until 1960, following declassification of the subject matter, that a detailed article on the topic appeared the public domain. Thereafter, the number of published articles grew quickly, as demonstrated by the comprehensive selection of papers to be found in a compilation by Barton.Briefly, the basic pulse compression properties can be related as follows. For a chirp waveform that sweeps over a frequency range F1 to F2 in a time period T, the nominal bandwidth of the pulse is B, where B = F2 – F1, and the pulse has a time-bandwidth product of T×B . Following pulse compression, a narrow pulse of duration τ is obtained, where τ ≈ 1/B, together with a peak voltage amplification of √(T×B).