Review of Reconfigurable Virtual Instrumentation and It Implementation in Cameroon Labs

Current software development directions open up a world of possibilities, especially in the engineering field. Present paper is meant to highlight the advantages and in particular the ease of using virtual instrumentation facilities, with a proper and adequate design and implementation of desired instrument. In this idea we bring into discussion a design for virtual instrument which can be used for data acquisition that can be stored for further simulations according to the needs required by the process in discussion.

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Hitting the IT-Implementation Trifecta

SSRN Electronic Journal ◽

10.2139/ssrn.2243314 ◽

2013 ◽

Author(s):

Robert Zafft

Keyword(s):

It Implementation

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Two-stage segment linearization as part of the thermocouple measurement chain

Measurement and Control ◽

10.1177/0020294020986833 ◽

2021 ◽

Vol 54 (1-2) ◽

pp. 141-151

Author(s):

Dragan Živanović ◽

Milan Simić

Keyword(s):

Transfer Functions ◽

Approximation Error ◽

Linearization Method ◽

Linear Segment ◽

Virtual Instrumentation ◽

Memory Consumption ◽

Thermocouple Measurement ◽

Two Stage ◽

Approximation Errors ◽

Input Range

An implementation of a two-stage piece-wise linearization method for reduction of the thermocouple approximation error is presented in the paper. First, the whole thermocouple measurement chain of a transducer is described, and possible error is analysed to define the required level of accuracy for linearization of the transfer characteristics. Evaluation of linearization functions and analysis of approximation errors are performed by the virtual instrumentation software package LabVIEW. The method is appropriate for thermocouples and other sensors where nonlinearity varies a lot over the range of input values. The basic principle of this method is to first transform the abscissa of the transfer function by a linear segment look-up table in such a way that significantly nonlinear parts of the input range are expanded before a standard piece-wise linearization. In this way, applying equal-segment linearization two times has a similar effect to non-equal-segment linearization. For a given examples of the thermocouple transfer functions, the suggested method provides significantly better reduction of the approximation error, than the standard segment linearization, with equal memory consumption for look-up tables. The simple software implementation of this two-stage linearization method allows it to be applied in low calculation power microcontroller measurement transducers, as a replacement of the standard piece-wise linear approximation method.

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Virtual Instrumentation based Prototype for Evaluation of the Cardiac Systolic Function

2020 International Symposium on Electronics and Telecommunications (ISETC) ◽

10.1109/isetc50328.2020.9301047 ◽

2020 ◽

Author(s):

Liliana Matiu-Iovan ◽

Valentin Ordodi ◽

Raul Ionel ◽

Daniel Bonciog

Keyword(s):

Systolic Function ◽

Virtual Instrumentation ◽

Cardiac Systolic Function

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Medical Virtual Instrumentation for Ambient Assisted Living: Part 1 Concepts

Measurement and Control ◽

10.1177/0020294015569262 ◽

2015 ◽

Vol 48 (6) ◽

pp. 167-177 ◽

Cited By ~ 2

Author(s):

Olufemi Adeluyi ◽

Jeong-A Lee

Keyword(s):

Assisted Living ◽

Ambient Assisted Living ◽

Virtual Instrumentation

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Virtual Instrumentation Based Analysis of Induction Motor

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.984-985.970 ◽

2014 ◽

Vol 984-985 ◽

pp. 970-976

Author(s):

Memala W. Abitha ◽

V. Rajini

Keyword(s):

Induction Motor ◽

Life Time ◽

Open Circuit ◽

Virtual Instrumentation ◽

Repair Work ◽

Three Phase ◽

Stationary Reference Frame ◽

Stator Fault ◽

Motor Failure ◽

Vector Approach

The three phase induction motor is a popularly used machine in many of the industries, which is well known for its robustness, reliability, cost effectiveness, efficient and safe operation. The unnoticed manufacturing failure, mistakes during repair work, exceeding life time may be some of the causes of the induction motor failure, which may lead to the unknown shut down time of the industry. The condition monitoring plays important role as it has the influence on the production of materials and profit. In our work, the induction motor is modelled using stationary reference frame and analysed for single phasing stator fault. The techniques used in detecting the single phasing (open circuit) failures are Park’s vector approach and Fast Fourier Transform (FFT). Park’s vector approach is used for detecting the faults occurring at various phases and FFT is used for detecting the faults of the induction motor working under no load and varying loading conditions.

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