Optocoupler vs. Pulse Transformer
... In isolation applications where one needs to pass signals in presence of transient or continuous high voltages, reject extreme noise, and break ground loops, optical (optocouplers) and magnetic (pulse transformers) coupling isolation are often used. However pulse transformers are much more difficult ...
... In isolation applications where one needs to pass signals in presence of transient or continuous high voltages, reject extreme noise, and break ground loops, optical (optocouplers) and magnetic (pulse transformers) coupling isolation are often used. However pulse transformers are much more difficult ...
Document
... same time that radiation scattered from objects at the front end of the pulse at “c” will arrive back at “b”. When energy arrives back at the radar, an instantaneous sample will include all radiation scattered between locations b and c: the sample volume is half the pulse length (h/2). ...
... same time that radiation scattered from objects at the front end of the pulse at “c” will arrive back at “b”. When energy arrives back at the radar, an instantaneous sample will include all radiation scattered between locations b and c: the sample volume is half the pulse length (h/2). ...
PIR-3 spec sheet.indd - Solid State Instruments
... bright yellow LED lamp indicate the system’s status at all times thus allowing a rapid check of the system’s performance without requiring any additional test equipment. The PIR-3 has an integrated circuit that checks each incoming pulse for its duration. If the incoming pulse is less than 20 millis ...
... bright yellow LED lamp indicate the system’s status at all times thus allowing a rapid check of the system’s performance without requiring any additional test equipment. The PIR-3 has an integrated circuit that checks each incoming pulse for its duration. If the incoming pulse is less than 20 millis ...
Tektronix PG 502 Pulse Generator
... The output level is set by two concentric knobs, the outer one for the negative pulse level and the inner knob for the positive level. Note that the two concentric knobs are mechanically interlocked to limit the differential between the high and low levels while also allowing a DC offset. In order t ...
... The output level is set by two concentric knobs, the outer one for the negative pulse level and the inner knob for the positive level. Note that the two concentric knobs are mechanically interlocked to limit the differential between the high and low levels while also allowing a DC offset. In order t ...
- Lotus Live Projects
... The microcontroller is able to store all the commands to generate the necessary wave forms to control the frequency of the inverter through proper design of the switching pulse. Spwm or sinusoidal pulse width modulation is widely used in power electronics to digitize the power so that a sequence of ...
... The microcontroller is able to store all the commands to generate the necessary wave forms to control the frequency of the inverter through proper design of the switching pulse. Spwm or sinusoidal pulse width modulation is widely used in power electronics to digitize the power so that a sequence of ...
Power Chair Securement System Ben Roedl
... To improve upon the current tissue stimulation process which is not physiologically accurate. To provide a low-cost multi-channel stimulator. ...
... To improve upon the current tissue stimulation process which is not physiologically accurate. To provide a low-cost multi-channel stimulator. ...
Ch04
... Coded excitation has been applied in radar. Pulse compression in the conversion, using a matched filter, of a relative long coded pulse to one of short time duration, excellent resolution, and equivalent high intensity and sensitivity. A match filter maximizes the signal-to-noise ratio (SNR) of the ...
... Coded excitation has been applied in radar. Pulse compression in the conversion, using a matched filter, of a relative long coded pulse to one of short time duration, excellent resolution, and equivalent high intensity and sensitivity. A match filter maximizes the signal-to-noise ratio (SNR) of the ...
Demodulation PWM Signal
... The basic theory behind Pulse width demodulation is that converting the PWM signal to PAM (Pulse Amplitude Modulation) signal. PAM can be easily detected by suitable low pass filter. ...
... The basic theory behind Pulse width demodulation is that converting the PWM signal to PAM (Pulse Amplitude Modulation) signal. PAM can be easily detected by suitable low pass filter. ...
Pulse Generator HM8035
... The HM8035 Pulse Generator is designed for analog and digital circuit stimulus in the laboratory and the field. Key features are the short rise time output, better than 3ns and typically 2ns and the flexibility of pulse duration and duty cycle from square-wave through to narrow, sliver-type pulses. ...
... The HM8035 Pulse Generator is designed for analog and digital circuit stimulus in the laboratory and the field. Key features are the short rise time output, better than 3ns and typically 2ns and the flexibility of pulse duration and duty cycle from square-wave through to narrow, sliver-type pulses. ...
IKI PTR-II
... The IKI Pulse Train Reader is a list mode acquisition system for neutron coincidence counting. It consists of an external hardware unit and a user-friendly windows software package. Measured data are transferred to the PC and written to hard disk. The recorded pulse train, can be evaluated with diff ...
... The IKI Pulse Train Reader is a list mode acquisition system for neutron coincidence counting. It consists of an external hardware unit and a user-friendly windows software package. Measured data are transferred to the PC and written to hard disk. The recorded pulse train, can be evaluated with diff ...
High performance with a small footprint
... Using this concept the spectrum analyzer offers the functions and characteristics provided by desktop units but implements them on the small footprint of a handheld unit. For instance it offers resolution bandwidths from 1 kHz to 1 MHz in a 1-3-10 sequence. These bandwidths are designed for optimum ...
... Using this concept the spectrum analyzer offers the functions and characteristics provided by desktop units but implements them on the small footprint of a handheld unit. For instance it offers resolution bandwidths from 1 kHz to 1 MHz in a 1-3-10 sequence. These bandwidths are designed for optimum ...
Q - VU Tube
... analog to digital conversion as pulse code modulation. The complete Pulse code modulation has four steps. 1. Pulse amplitude modulation. 2. Quantization. 3. Binary conversion or encoding. 4. Digital to digital encoding. ...
... analog to digital conversion as pulse code modulation. The complete Pulse code modulation has four steps. 1. Pulse amplitude modulation. 2. Quantization. 3. Binary conversion or encoding. 4. Digital to digital encoding. ...
Chapter 4 part 2_1
... at a rate of Nyquist’s sampling frequency. □ Nyquist’s Sampling Theorem : The original information signal can be reconstructed at the receiver with minimal distortion if the sampling rate in the pulse modulation system equal to or greater than twice the maximum information signal frequency. ...
... at a rate of Nyquist’s sampling frequency. □ Nyquist’s Sampling Theorem : The original information signal can be reconstructed at the receiver with minimal distortion if the sampling rate in the pulse modulation system equal to or greater than twice the maximum information signal frequency. ...
Intro-to-Signal-Generators-Fact
... Waveform Modulation Amplitude Modulation: A type of analog modulation in which amplitude variations embed lower-frequency information into a carrier signal of higher frequency. Frequency Modulation: A type of analog modulation in which frequency variations embedded lower-frequency information in ...
... Waveform Modulation Amplitude Modulation: A type of analog modulation in which amplitude variations embed lower-frequency information into a carrier signal of higher frequency. Frequency Modulation: A type of analog modulation in which frequency variations embedded lower-frequency information in ...
Performance Enhanced High Speed UWB GPR System for Buried Rebar Detection Tian Xia, Anbu Venkatachalam, Yu Zhang Dylan Burns, Dryver Huston
... Fourier transform has been widely used for signal spectrum analysis. Main limitation: the signal time information is lost in transforming to frequency domain. GPR operation involves subsurface features inspection which change with time leading to non‐stationary reflection signals ...
... Fourier transform has been widely used for signal spectrum analysis. Main limitation: the signal time information is lost in transforming to frequency domain. GPR operation involves subsurface features inspection which change with time leading to non‐stationary reflection signals ...
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).