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Related Concept Videos

Rectangular and Triangular Pulse Function01:19

Rectangular and Triangular Pulse Function

The unit rectangular pulse function is mathematically represented by a rectangular function centered at the origin with a height of one unit. This function is defined by two parameters: T, which specifies the center location of the pulse along the time axis, and τ, which determines the pulse duration.
For example, consider a rectangular pulse with a 5V amplitude, a 3-second duration, and centered at t=2 seconds. This pulse can be expressed using the rectangular function, written as,
Half wave rectifier01:20

Half wave rectifier

A half-wave rectifier is a fundamental circuit in electronics, designed to convert alternating current (AC) voltage into a unidirectional voltage. It utilizes the simplest form of diode rectification, where the circuit comprises a single diode in series with a load resistor and an AC power source.
Clipper Circuit01:18

Clipper Circuit

A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
Bewley Lattice Diagram01:12

Bewley Lattice Diagram

The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
Voltage Doubler Circuit01:23

Voltage Doubler Circuit

A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.

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Related Experiment Video

Updated: Jul 2, 2026

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies
09:38

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies

Published on: January 3, 2018

Reversing rectangular pulse generator applicable to transient electric birefringence.

H Asai1, N Watanabe, T Okuyama

  • 1Department of Physics, Waseda University, Shinjuku, Tokyo 160, Japan.

The Review of Scientific Instruments
|February 1, 1978
PubMed
Summary
This summary is machine-generated.

A new electronic pulse generator was built for studying electric birefringence in macromolecular solutions. This device offers fast pulse switching, enabling detailed analysis of molecular behavior.

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Last Updated: Jul 2, 2026

Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies
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Area of Science:

  • Physical chemistry
  • Biophysics
  • Materials science

Background:

  • Electric birefringence is a key technique for studying macromolecular solutions.
  • Accurate and fast pulse generation is crucial for transient electric birefringence experiments.

Purpose of the Study:

  • To construct an electronic reversing rectangular pulse generator for electric birefringence experiments.
  • To evaluate the performance of the constructed pulse generator.

Main Methods:

  • Construction of an electronic reversing rectangular pulse generator using thyratron tubes (2D21 or 1G50 type).
  • Testing the generator's performance, including pulse reversing time.
  • Demonstration of transient electric birefringence using tobacco mosaic virus (TMV) samples.

Main Results:

  • The constructed pulse generator demonstrated satisfactory performance.
  • Achieved a pulse reversing time of less than 50 ns.
  • Successfully demonstrated transient electric birefringence for common and HR strains of TMV.

Conclusions:

  • The developed electronic pulse generator is suitable for electric birefringence studies.
  • The fast switching time facilitates precise measurements in transient experiments.
  • The generator provides a valuable tool for investigating macromolecular dynamics.