Wire Recorded Magnetic Pulse Timing Circuit

1950 ◽  
Vol 21 (2) ◽  
pp. 142-144 ◽  
Author(s):  
C. R. Emigh
Keyword(s):  
Magnetic Pulse ◽  
Timing Circuit ◽  
Pulse Timing

A Pulse Timing Circuit for Cosmic‐Ray Research

1947 ◽  
Vol 18 (5) ◽  
pp. 271-278 ◽  
Author(s):  
Harold K. Ticho
Keyword(s):  
Cosmic Ray ◽  
Timing Circuit ◽  
Pulse Timing

Testing Pulse Timing Devices Using Arbitrary Function Generators

2020 ◽  
Vol 54 (5) ◽  
pp. 466-473
Author(s):  
V. A. Bespal’ko ◽  
I. Burak ◽  
A. S. Rybakov
Keyword(s):  
Arbitrary Function ◽  
Pulse Timing ◽  
Function Generators

Rhythmic Pattern Generation in Invertebrates

2018 ◽  
pp. 390-400
Author(s):  
Astrid A. Prinz
Keyword(s):  
Central Pattern Generators ◽  
Pattern Generation ◽  
Rhythmic Pattern ◽  
Neuronal Circuit ◽  
Neuronal Circuits ◽  
Timing Circuit ◽  
Core Components ◽  
Pattern Generators

This chapter begins by defining central pattern generators (CPGs) and proceeds to focus on one of their core components, the timing circuit. After arguing why invertebrate CPGs are particularly useful for the study of neuronal circuit operation in general, the bulk of the chapter then describes basic mechanisms of CPG operation at the cellular, synaptic, and network levels, and how different CPGs combine these mechanisms in various ways. Finally, the chapter takes a semihistorical perspective to discuss whether or not the study of invertebrate CPGs has seen its prime and what it has contributed—and may continue to offer—to a wider understanding of neuronal circuits in general.

scholarly journals Speeds of Sound in Methanol at Temperatures from 233.33 to 353.21 K at Pressures up to 20 MPa

2021 ◽  
Vol 42 (5) ◽  
Author(s):  
Christian W. Scholz ◽  
Roland Span
Keyword(s):  
Equation Of State ◽  
Path Length ◽  
Speeds Of Sound ◽  
Pulse Timing ◽  
Combined Uncertainty ◽  
Pulse Echo

AbstractWe report experimental speeds of sound in methanol. Measurements were conducted at temperatures from 233 to 353 K with pressures up to 20 MPa using the double-path length pulse-echo technique. The relative expanded combined uncertainty (k = 2) in measurement was estimated to vary from 0.012 to 0.014%, considering contributions from temperature, pressure, path length calibration, pulse timing, and purity of the sample. Experimental speeds of sound gained in the scope of this work were compared with the equation of state by de Reuck and Craven, as well as with further data from literature.

Magnetic pulse welding of aluminum to steel tubes using a field-shaper with multiple seams

2021 ◽  
Vol 65 ◽  
pp. 214-227
Author(s):  
Ziqin Yan ◽  
Ang Xiao ◽  
Xiaohui Cui ◽  
Yuanzheng Guo ◽  
Yuhong Lin ◽  
...  
Keyword(s):  
Magnetic Pulse ◽  
Steel Tubes ◽  
Magnetic Pulse Welding ◽  
Pulse Welding

Experimental investigation and optimization on field shaper structure parameters in magnetic pulse welding

2021 ◽  
pp. 095440542110148
Author(s):  
Yingzi Chen ◽  
Zhiyuan Yang ◽  
Wenxiong Peng ◽  
Huaiqing Zhang
Keyword(s):  
Magnetic Field ◽  
High Speed ◽  
Light Metal ◽  
Magnetic Pulse ◽  
Cross Sectional ◽  
Magnetic Pulse Welding ◽  
Pulse Welding ◽  
Sectional Shape ◽  
Welding System ◽  
The Magnetic Field

Magnetic pulse welding is a high-speed welding technology, which is suitable for welding light metal materials. In the magnetic pulse welding system, the field shaper can increase the service life of the coil and contribute to concentrating the magnetic field in the welding area. Therefore, optimizing the structure of the field shaper can effectively improve the efficiency of the system. This paper analyzed the influence of cross-sectional shape and inner angle of the field shaper on the ability of concentrating magnetic field via COMSOL software. The structural strength of various field shapers was also analyzed in ABAQUS. Simulation results show that the inner edge of the field shaper directly affects the deformation and welding effect of the tube. So, a new shape of field shaper was proposed and the experimental results prove that the new field shaper has better performance than the conventional field shaper.

scholarly journals Investigation of Bipolar Plate Forming with Various Die Configurations by Magnetic Pulse Method

Metals ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 453 ◽  
Author(s):  
Wang ◽  
Wang
Keyword(s):  
Major Part ◽  
Capacitor Bank ◽  
Pulse Method ◽  
Bipolar Plate ◽  
Magnetic Pulse ◽  
Percentage Increase ◽  
Bipolar Plates ◽  
Draft Angle ◽  
Die Surface ◽  
Primary Current

Bipolar plates are a major part of fuel cells, which are a clean and recyclable energy source. This study was carried out with two dies for a bipolar plate forming investigation with the magnetic pulse method: a bipolar plate die and a 10-channel die. With the bipolar plate die, the forming of bipolar plates with a Cu110 sheet and a Grade 2 Ti sheet indicated that the bipolar plate die needed optimization for a full replication. The obtained maximum average depth percentage was 86% for a Cu110 sheet, while it was 54% for a Grade 2 Ti sheet in this study. A further increase of the depth percentage is possible but requires a much higher capacitor bank energy. The increase of the capacitor bank energy would result in severe tearing, while the depth percentage increase was little. The primary current and flyer velocity were measured at various capacitor bank energies. With the 10-channel die, the die parameters’ effect on metal sheet forming was investigated with a Cu110 sheet and an SS201 sheet. The draft angle had a significant effect on the replication of the die surface. The full replication was achieved for channels with proper parameters with both a Cu110 sheet and an SS201 sheet. Therefore, the bipolar plate die could be optimized based on the 10-channel die results.

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