Inexpensive microprocessor controlled programmable function generators for use in electrochemistry

1980 ◽  
Vol 52 (2) ◽  
pp. 367-371 ◽  
Author(s):  
A. M. Bond ◽  
A. Norris
Keyword(s):  
Function Generators

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

Five Position Synthesis of a Slider-Crank Function Generator

2011 ◽  
Author(s):  
Mark M. Plecnik ◽  
J. Michael McCarthy
Keyword(s):  
Full Range ◽  
Linear Actuator ◽  
Tolerance Zone ◽  
Function Generator ◽  
Front End ◽  
Input And Output ◽  
Function Generators ◽  
Synthesis Procedure ◽  
Position Synthesis ◽  
Branching Solutions

In this paper, we present a synthesis procedure for the coupler link of a planar slider-crank linkage in order to coordinate input by a linear actuator with the rotation of an output crank. This problem can be formulated in a manner similar to the synthesis of a five position RR coupler link. It is well-known that the resulting equations can produce branching solutions that are not useful. This is addressed by introducing tolerances for the input and output values of the specified task function. The proposed synthesis procedure is then executed on two examples. In the first example, a survey of solutions for tolerance zones of increasing size is conducted. In this example we find that a tolerance zone of 5% of the desired full range results in a number of useful task functions and usable slider-crank function generators. To demonstrate the use of these results, we present an example design for the actuator of the shovel of a front-end loader.

A New Methodology for Rapid Synthesis of Function Generators

1992 ◽  
Vol 206 (6) ◽  
pp. 391-398 ◽  
Author(s):  
J R McGarva ◽  
G Mullineux
Keyword(s):  
Harmonic Analysis ◽  
Optimization Technique ◽  
Performance Criteria ◽  
Performance Information ◽  
Rapid Synthesis ◽  
Single Degree Of Freedom ◽  
Performance Requirement ◽  
Single Degree ◽  
Function Generators ◽  
Fine Tune

This paper presents the application of a new methodology for the rapid synthesis of a single-degree-of-freedom function generating linkages. Harmonic analysis and normalization are used as a means of evaluating linkage performance. The performance information for a large number of linkage types and dimensional variants are stored in a software-based library. A means whereby this library can he searched for linkages to meet prescribed performance criteria is discussed. The use of an optimization technique to ‘fine tune’ the library selections is introduced. Finally, an example of the use of the methodology is given for the synthesis of a linkage required to reproduce a particular performance requirement.

Actuation of Model Phalanges by Ion Polymer Metal Compound

2012 ◽  
Vol 79 ◽  
pp. 69-74
Author(s):  
Tadashi Ihara ◽  
Taro Nakamura ◽  
Kinji Asaka
Keyword(s):  
Artificial Muscle ◽  
Fast Response ◽  
Metal Compound ◽  
Opening Angle ◽  
Prototype Model ◽  
Small Force ◽  
Polymer Metal ◽  
Function Generators ◽  
And Function ◽  
Contraction And Expansion

We have fabricated a prototype model artificial muscle that drives model phalanges in water with ion polymer metal compound (IPMC) which generates relatively large displacement with fast response but generates relatively small force. We have developed IPMC of greater thickness of up to 600 µm than conventional Nafion 117 based IPMC of 200 µm which enabled to generate greater force. In fabricating IPMC Nafion R-1100 resin was heat-pressed at 185 °C with 20-30 MPa. The thickness of IPMC could be adjusted by changing the amount of resin, pressure, and time to heat-press. Fabricated IPMC was then cut in shapes and an electrode was attached on the surface of IPMC. The device was used as an artificial muscle type actuator which was fabricated in a shape that bridges two conjoining bones, and controls opening angle of the bones that mimics contraction and expansion motion of the muscle. Bipolar power supply and function generators were used to drive IPMC membranes attached to the model phalanges.

Complete Solutions to Synthesis of Six-Link, Slider-Crank and Four-Link Mechanisms for Function, Path and Motion Generation Using Homotopy With M-Homogenization

1992 ◽  
Author(s):  
Anoop K. Dhingra ◽  
Jyun-Cheng Cheng ◽  
Dilip Kohli
Keyword(s):  
Group Theory ◽  
Matrix Method ◽  
Numerical Results ◽  
Path Generation ◽  
Link Function ◽  
Homotopy Methods ◽  
Motion Generation ◽  
The Matrix ◽  
Function Generators ◽  
Complete Solutions

Abstract This paper presents complete solutions to the function, motion and path generation problems of Watt’s and Stephenson six-link, slider-crank and four-link mechanisms using homotopy methods with m-homogenization. It is shown that using the matrix method for synthesis, applying m-homogeneous group theory, and by defining compatibility equations in addition to the synthesis equations, the number of homotopy paths to be tracked can be drastically reduced. For Watt’s six-link function generators with 6 thru 11 precision positions, the number of homotopy paths to be tracked in obtaining all possible solutions range from 640 to 55,050,240. For Stephenson-II and -III mechanisms these numbers vary from 640 to 412,876,800. For 6, 7 and 8 point slider-crank path generation problems, the number of paths to be tracked are 320, 3840 and 17,920, respectively, whereas for four-link path generators with 6 thru 8 positions these numbers range from 640 to 71,680. It is also shown that for body guidance problems of slider-crank and four-link mechanisms, the number of homotopy paths to be tracked is exactly same as the maximum number of possible solutions given by the Burmester-Ball theories. Numerical results of synthesis of slider-crank path generators for 8 precision positions and six-link Watt and Stephenson-III function generators for 9 prescribed positions are also presented.

Function Generators

1989 ◽  
pp. 133-140
Author(s):  
Anne Fischer Lent ◽  
Stan Miastkowski
Keyword(s):  
Function Generators
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