Designing an Optical Theremin
... the cost to implement the physical circuit is high. The necessity of the myDAQ and LabView program drive the cost up and make this an expensive design. The Theremin could be implemented much cheaper with more complex physical circuitry and inexpensive components. Conclusion: Through a design and dev ...
... the cost to implement the physical circuit is high. The necessity of the myDAQ and LabView program drive the cost up and make this an expensive design. The Theremin could be implemented much cheaper with more complex physical circuitry and inexpensive components. Conclusion: Through a design and dev ...
Phase sensitive detection Chapter 16
... input are produced by the movement of the same device — the chopper — these two signals will have a fixed phase relationship, i.e. the signal and reference are coherently related or phase locked to one another. In the example illustrated in figure 16.2 we have assumed that the signal and reference a ...
... input are produced by the movement of the same device — the chopper — these two signals will have a fixed phase relationship, i.e. the signal and reference are coherently related or phase locked to one another. In the example illustrated in figure 16.2 we have assumed that the signal and reference a ...
RLC Circuits Note
... Using the measured resonance frequency and effective resistor value, calculate the Q. Vary the oscillator frequency to find the half-power frequencies and determine the Q from the measurements. (Note: By definition, at the half-power frequencies the output voltage is smaller than the output at reson ...
... Using the measured resonance frequency and effective resistor value, calculate the Q. Vary the oscillator frequency to find the half-power frequencies and determine the Q from the measurements. (Note: By definition, at the half-power frequencies the output voltage is smaller than the output at reson ...
Pixie II v5.1 40 m QRP xcvr Kit
... definitely possible. Listening on 40m just after dark let me hear most of the 40m CW band – all at once! Stations could be peaked by adjusting the 47K trim pot. Where a few individual CW signals could be identified I found them on my FT-450 – surprisingly they were not S9+ signals but pretty ordinar ...
... definitely possible. Listening on 40m just after dark let me hear most of the 40m CW band – all at once! Stations could be peaked by adjusting the 47K trim pot. Where a few individual CW signals could be identified I found them on my FT-450 – surprisingly they were not S9+ signals but pretty ordinar ...
UMX-870-D16-G ULTRA-LOW NOISE COAXIAL RESONATOR OSCILLATOR Features
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
ESR (Electron Spin Resonance)
... The solid state oscillator is the preferred RF source for the ESR/EPR experiment. However, these devices are somewhat delicate. Extreme care must be used when connecting these devices to their DC power supply. Excessive voltage (or current) and/or reversed polarity can destroy these devices). ...
... The solid state oscillator is the preferred RF source for the ESR/EPR experiment. However, these devices are somewhat delicate. Extreme care must be used when connecting these devices to their DC power supply. Excessive voltage (or current) and/or reversed polarity can destroy these devices). ...
Lecture-2 - Dr. Imtiaz Hussain
... • The oscilloscope is basically a graph-displaying device • It draws a graph of an electrical signal. • In most applications the graph shows how signals change over time: – the vertical (Y) axis represents voltage – the horizontal (X) axis represents time. ...
... • The oscilloscope is basically a graph-displaying device • It draws a graph of an electrical signal. • In most applications the graph shows how signals change over time: – the vertical (Y) axis represents voltage – the horizontal (X) axis represents time. ...
VCO790-2560KY 数据资料DataSheet下载
... The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or ot ...
... The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or ot ...
AN1882 The NE568A as a wideband FM modulator
... and series resistor RIN as shown in Figure 4. This reduces the harmonic content of the output signal while also increasing its amplitude. The AC modulator output signal appears on Pins 19 and 20 superimposed on a DC common mode voltage 4.8V above ground. In order to provide a low impedance ground re ...
... and series resistor RIN as shown in Figure 4. This reduces the harmonic content of the output signal while also increasing its amplitude. The AC modulator output signal appears on Pins 19 and 20 superimposed on a DC common mode voltage 4.8V above ground. In order to provide a low impedance ground re ...
UNIT 1 - WordPress.com
... When an antenna transmits radio waves, they are propagated in all directions. This means that the sending and receiving antennas do not have to be aligned. The Omni directional characteristics of radio waves make them useful for multicasting, in which there is one sender but many receivers. ...
... When an antenna transmits radio waves, they are propagated in all directions. This means that the sending and receiving antennas do not have to be aligned. The Omni directional characteristics of radio waves make them useful for multicasting, in which there is one sender but many receivers. ...
Linux+ Guide to Linux Certification
... WLAN Antenna Locations and Installation • Because WLAN systems use omni-directional antennas to provide broadest area of coverage, APs should be located near middle of coverage area • Antenna should be positioned as high as possible • If high-gain omni-directional antenna used, must determine that ...
... WLAN Antenna Locations and Installation • Because WLAN systems use omni-directional antennas to provide broadest area of coverage, APs should be located near middle of coverage area • Antenna should be positioned as high as possible • If high-gain omni-directional antenna used, must determine that ...
UMJ-910-D14-G VOLTAGE CONTROLLED OSCILLATOR FOR IF CONVERSION Features
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. The information in this publication is believed to be accurate and reliable. However, no responsibility is assum ...
Single-chip detector for electron spin resonance spectroscopy
... Dielectric or ferroelectric inserts in standard cavities,5,6 millimeter sized high dielectric constant ring resonators,7 cavities with narrow slits for local measurements outside the cavity,8 and small solenoidal and planar coils,9–14 allow one to perform optimized experiments on samples having volu ...
... Dielectric or ferroelectric inserts in standard cavities,5,6 millimeter sized high dielectric constant ring resonators,7 cavities with narrow slits for local measurements outside the cavity,8 and small solenoidal and planar coils,9–14 allow one to perform optimized experiments on samples having volu ...
SGA6486Z 数据资料DataSheet下载
... The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or ot ...
... The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or ot ...
Optical Theremin Design Review - Sites@PSU
... output sound based on the photodiodes. After testing the circuit, it was found that the range of voltage values being produced by the amplifiers were too high for the MyDAQ input ports shown in appendix D. As a result, the values for the resistors used in the circuit shown in appendix B had to be ch ...
... output sound based on the photodiodes. After testing the circuit, it was found that the range of voltage values being produced by the amplifiers were too high for the MyDAQ input ports shown in appendix D. As a result, the values for the resistors used in the circuit shown in appendix B had to be ch ...
Multifunctional Block of High Voltage Power Supply
... Comparator of "dead zone"; Error amplifier of power; Error amplifier of a signal of current limitation; Two output transistors with open emitters and collecting channels. The LM3524 provides a stable on-board oscillator. Its frequency is set by an external resistor, Rt and capacitor, Ct. The ...
... Comparator of "dead zone"; Error amplifier of power; Error amplifier of a signal of current limitation; Two output transistors with open emitters and collecting channels. The LM3524 provides a stable on-board oscillator. Its frequency is set by an external resistor, Rt and capacitor, Ct. The ...
Generation of a sine wave
... By increasing the number of poles, the number of cycles per revolution is increased. A four-pole generator will produce two complete cycles in each revolution. ...
... By increasing the number of poles, the number of cycles per revolution is increased. A four-pole generator will produce two complete cycles in each revolution. ...
Heterodyne
Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.