Contents
What is meant by pulse generation?
A pulse generator is either an electronic circuit or a piece of electronic test equipment used to generate rectangular pulses. Pulse generators are used primarily for working with digital circuits, related function generators are used primarily for analog circuits.
Where is a pulse generator most commonly found?
Pulse generators produce two-level signals like clocks, but all the parameters of the waveform are generally variable. Pulse generators are most commonly found in equipment for electronic testing.
How are laser pulses generated?
They are pumped with rather short electric pulses. Gain-switched semiconductor lasers are suitable for nanosecond or picosecond pulses with relatively low energy (→ picosecond diode lasers). Relatively long pulses can be generated e.g. with laser diodes in quasi-continuous-wave operation.
What is meant by pulse in electronics?
A pulse is a burst of current, voltage, or electromagnetic-field energy. In practical electronic and computer systems, a pulse may last from a fraction of a nanosecond up to several seconds or even minutes. In digital circuits, pulses can make the voltage either more positive or more negative.
How do pulse generators work?
The high-voltage supply and the pulse generator use a circuit where capacitors are charged in parallel from a low-voltage source such as a 12-V battery, then discharged in series to gain a voltage multiplication and produce a high-voltage pulse.
Which circuit does not produce pulses?
Astable Multivibrator
An Astable Multivibrator is such a circuit that it automatically switches between the two states continuously without the application of any external pulse for its operation. As this produces a continuous square wave output, it is called as a Free-running Multivibrator. The dc power source is a common requirement.
Which is used for generation of laser pulse?
Nd – YAG laser is used for the generation of laser pulse.
How to generate a continuous pulse train with on the fly?
While in a loop for continuous pulse train generation, make two calls to Counter Set Attribute.vi to set the values for “pulse spec 1” (constant 14) and “pulse spec 2” (constant 15). Following these calls you would make a call to Counter Control.vi with the control code set to “switch cycle” (constant 7).
How to generate a continuous pulse train in LabVIEW?
LabVIEW : While in a loop for continuous pulse train generation, make two calls to Counter Set Attribute.vi to set the values for “pulse spec 1” (constant 14) and “pulse spec 2” (constant 15). Following these calls you would make a call to Counter Control.vi with the control code set to “switch cycle” (constant 7).
How to generate digital pulse train with variable frequency?
Refer to the link below “LabWindows/CVI: Digital Pulse Train with a Variable Frequency” for a full working example. Note: In this example it is setup so that the data acquisition runs in a separate thread from the UI so the UI can be updated during acquisition, so some knowledge of using thread pools in CVI is needed to interpret the code.
Can a pulse train be updated on value change?
As frequency is a defined configuration property, identical frequency values cannot be sent to the DAQmx Write function in concurrent loop iterations; therefore, a case structure must be implemented to update the frequency value only on value change. In this example, a user may dynamically update the frequency property of the pulse train.