Theory 10: Measurement of Vibration
... The number of times a complete motion cycle takes place during the period of one second is called the Frequency and is measured in Hertz (Hz). The motion can consists of a single component occurring at a single frequency. Vibration signals in practice usually consist of very many frequencies o ...
... The number of times a complete motion cycle takes place during the period of one second is called the Frequency and is measured in Hertz (Hz). The motion can consists of a single component occurring at a single frequency. Vibration signals in practice usually consist of very many frequencies o ...
High-precision Power Measurement of SiC Inverters
... The output of inverters and motors fluctuates over time. Consequently, accurate measurement is made difficult by imperfect synchronization of measurement timing and by differences in calculation methods when calculating efficiency and loss by measuring the respective Measuring the Efficiency of Invert- poi ...
... The output of inverters and motors fluctuates over time. Consequently, accurate measurement is made difficult by imperfect synchronization of measurement timing and by differences in calculation methods when calculating efficiency and loss by measuring the respective Measuring the Efficiency of Invert- poi ...
Amptek Inc. Amptek Inc. 1 Activitity (of a radioisotope): The number
... spectrum. MCAs can also measure a timing spectrum or other distributions. Output count rate (OCR): The rate of events measured by the electronic system. Parallel noise: Electronic noise arising from components in parallel with the detector, the signal sources. This is generally equivalent to current ...
... spectrum. MCAs can also measure a timing spectrum or other distributions. Output count rate (OCR): The rate of events measured by the electronic system. Parallel noise: Electronic noise arising from components in parallel with the detector, the signal sources. This is generally equivalent to current ...
CS1101: Lab 2 – Using Structs to Build Filters and Amplifiers
... An electrical engineer wishes to create an electrical toolbox of various types of filters. The three types of filters that he wishes to have are Butterworth, Chebyshev, and Elliptic filters. All filters have an order (number), a pass type (‘high, ‘low, ‘notch, or ‘bandpass), and a target frequency ( ...
... An electrical engineer wishes to create an electrical toolbox of various types of filters. The three types of filters that he wishes to have are Butterworth, Chebyshev, and Elliptic filters. All filters have an order (number), a pass type (‘high, ‘low, ‘notch, or ‘bandpass), and a target frequency ( ...
chapter 2 - WordPress.com
... In practice, however, modulating signal is very often a complex waveform made up from many sine waves with different amplitudes and frequencies. Example: if a modulating signal contains three frequencies(fm1, fm2, fm3), the modulated signal will contain the carrier and three sets of side frequenci ...
... In practice, however, modulating signal is very often a complex waveform made up from many sine waves with different amplitudes and frequencies. Example: if a modulating signal contains three frequencies(fm1, fm2, fm3), the modulated signal will contain the carrier and three sets of side frequenci ...
Effective Charge Transfer Distances in Cyanide
... field strength of 1 MV‚cm-1 to facilitate comparisons. The HOSS and νj-weighted second derivatives of the 2ω-Stark spectra shown for 2-4 were scaled to a field strength of 1 MV‚cm-1 by using the F4 and F2 field dependencies of the signals, respectively. All spectra were obtained at χ ) 90°, except f ...
... field strength of 1 MV‚cm-1 to facilitate comparisons. The HOSS and νj-weighted second derivatives of the 2ω-Stark spectra shown for 2-4 were scaled to a field strength of 1 MV‚cm-1 by using the F4 and F2 field dependencies of the signals, respectively. All spectra were obtained at χ ) 90°, except f ...
Exponential Carrier Wave Modulation
... Ramp generator takes care of sweeping SBF After the IF filter the envelope detector yields signal whose power is comparable to the power that has passed the SBF Sweep rate and BIF determine system resolution. High resolution->small BIF and sweep rate as discussed soon When larger sensitivity is desi ...
... Ramp generator takes care of sweeping SBF After the IF filter the envelope detector yields signal whose power is comparable to the power that has passed the SBF Sweep rate and BIF determine system resolution. High resolution->small BIF and sweep rate as discussed soon When larger sensitivity is desi ...
Chapter 1 - Introduction to Electronics
... Fourier Series Rec ons t r uc t i on of t i me- domai n f unc t i on f r om t r i g. Four i er s er i es : ...
... Fourier Series Rec ons t r uc t i on of t i me- domai n f unc t i on f r om t r i g. Four i er s er i es : ...
Principles of EMG: Recording
... low-pass filters • mean or median frequencies of unfatigued muscles are around 70 to 80 Hz • “notch” filters should not be used to remove 50/60 cycle (line frequency) interference because much of the EMG signal strength is in this range Biomechanics Laboratory, University of Ottawa ...
... low-pass filters • mean or median frequencies of unfatigued muscles are around 70 to 80 Hz • “notch” filters should not be used to remove 50/60 cycle (line frequency) interference because much of the EMG signal strength is in this range Biomechanics Laboratory, University of Ottawa ...
Chapter 4 Amplitude Modulations and Demodulations
... • Because the cos ωct does not appear at the z(t), this setup is called balanced circuit • The nonlinear modulator is an example of a class of modulators known as balanced modulator. • Because m(t) appear in z(t), it is called single balance modulator, however, m(t) is removed through bandpass ...
... • Because the cos ωct does not appear at the z(t), this setup is called balanced circuit • The nonlinear modulator is an example of a class of modulators known as balanced modulator. • Because m(t) appear in z(t), it is called single balance modulator, however, m(t) is removed through bandpass ...
- Krest Technology
... of the T/H core. By increasing the circuit input impedance, the inductors L1a,b change the input matching over frequency and thus change the input voltage amplitude in comparison with 50-Ω matching. This increases the input voltage by 2.4 dB at 45 GHz compared with its dc value. As a result, the com ...
... of the T/H core. By increasing the circuit input impedance, the inductors L1a,b change the input matching over frequency and thus change the input voltage amplitude in comparison with 50-Ω matching. This increases the input voltage by 2.4 dB at 45 GHz compared with its dc value. As a result, the com ...
nWP006 RF Performance Test Guidelines
... The type of connectors you are using must be designed for the frequency you are measuring on. For example, BNC COAX connectors are usually specified for use only up to 1.8 GHz. On a 2.4GHz system these connectors may give a significant loss while SMA COAX connectors, which are still within specifica ...
... The type of connectors you are using must be designed for the frequency you are measuring on. For example, BNC COAX connectors are usually specified for use only up to 1.8 GHz. On a 2.4GHz system these connectors may give a significant loss while SMA COAX connectors, which are still within specifica ...
Spectrum analyzer
A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal that a spectrum analyzer measures is electrical, however, spectral compositions of other signals, such as acoustic pressure waves and optical light waves, can be considered through the use of an appropriate transducer. Optical spectrum analyzers also exist, which use direct optical techniques such as a monochromator to make measurements.By analyzing the spectra of electrical signals, dominant frequency, power, distortion, harmonics, bandwidth, and other spectral components of a signal can be observed that are not easily detectable in time domain waveforms. These parameters are useful in the characterization of electronic devices, such as wireless transmitters.The display of a spectrum analyzer has frequency on the horizontal axis and the amplitude displayed on the vertical axis. To the casual observer, a spectrum analyzer looks like an oscilloscope and, in fact, some lab instruments can function either as an oscilloscope or a spectrum analyzer.