Trading Off Test Coverage and False Reject Risk of Self-Calibrating Self-Test Systems

2012 ◽  
Author(s):  
Hans Martin von Staudt ◽  
Frank Schwiderski
Keyword(s):  
Test Coverage ◽  
Test Systems ◽  
Self Test

Software-Based Self-Test for Reliable Applications in Railway Systems

2012 ◽  
pp. 198-220 ◽  
Author(s):  
Alfredo Benso ◽  
Stefano Di Carlo ◽  
Alessandro Savino
Keyword(s):  
Test Solution ◽  
Test Coverage ◽  
High Quality ◽  
Basic Principles ◽  
Safety Standards ◽  
Railway Systems ◽  
Railway System ◽  
On Line ◽  
Self Test

The very strict safety standards, which must be guaranteed in a railway system, make the testing of all electronic components a unique and challenging case study. Software-based self-test represents a very attractive test solution to cope with the problem of on-line and off-line testing of microprocessor-based systems. It makes it possible to deeply test hardware components without introducing extra hardware and stressing the system in its operational condition. This chapter overviews the basic principles of software-based self-test techniques, focusing on a set of best practices to be applied in writing, verifying and computing the final test coverage of high-quality test programs for railway systems.

scholarly journals Desenvolvimento de equipamento de autoteste para defeitos em placas de potência de lavadoras de roupas

2020 ◽  
Vol 42 ◽  
pp. 37
Author(s):  
Ronaldo Barcelos e Silva ◽  
Glauber Rodrigues de Quadros ◽  
Lucinéia Fabris ◽  
Lucas Tavares Cardoso ◽  
Jocenir Boita ◽  
...  
Keyword(s):  
Test System ◽  
Electrical Signal ◽  
Test Equipment ◽  
Washing Machine ◽  
Reliable Test ◽  
Test Systems ◽  
Washing Machines ◽  
Self Test ◽  
The Cost

In this work a test equipment called RBS was developed to monitor the operation of a washing machine power board. The RBS identify  the main defects of Brastemp and Consul washing machines. The developed RBS equipment verifies that the machine's power plate is sending electrical signal to its peripherals such as valve 1, the drainage pump, the clockwise motor and the counterclockwise motor. The operation of each machine peripherals is represented by an LED on the circuit. The defect in the board can be verified by the LED that does not light up in the circuit. Thus, through RBS it is possible to save time in identifying washing machine problems and to obtain a reliable test system after repairing them. Additionally, it is important to note that the cost of the equipment developed is approximately R$ 26.00, while commercial self-test systems cost approximately two hundred reais.

Evaluating the resistance of test systems to small scale cheating

2009 ◽  
Author(s):  
Jing Guo ◽  
Louis Tay ◽  
Fritz Drasgow
Keyword(s):  
Small Scale ◽  
Test Systems

Exploratory assessment of automated hearing test systems

1979 ◽  
Author(s):  
Ronald M. Robertson ◽  
James W. Greene ◽  
Donald W. Maxwell ◽  
Carl E. Williams
Keyword(s):  
Test Systems ◽  
Hearing Test

AGGLUTINATION INHIBITION REACTIONS FOR THE DETERMINATION OF GONADOTROPHINS

1969 ◽  
Vol 62 (1_Suppl) ◽  
pp. S95-S112 ◽  
Author(s):  
A. H. W. M. Schuurs
Keyword(s):  
Immune System ◽  
Quantitative Determination ◽  
Haemagglutination Inhibition ◽  
Latex Agglutination ◽  
Literature Survey ◽  
New Method ◽  
Test Fluid ◽  
Main Application ◽  
Test Systems

ABSTRACT Various techniques for sensitising erythrocytes and latex particles with gonadotrophins, particularly with HCG, are described. The haemagglutination inhibition reactions are generally interpreted by means of »erythrocyte settling patterns«. By a new method of evaluating these patterns a relatively precise quantitative determination is possible. Latex agglutination inhibition reactions on slides are particularly suitable as rapid qualitative tests. In cases where the maximum attainable sensitivity of the agglutination inhibition tests is insufficient, e. g. for determining LH concentrations in urine, the hormone in the test fluid has to be concentrated or extracted. An alternative method is a modified haemagglutination inhibition test for large volumes which is applicable to unconcentrated urine. Due to non-specific inhibitions the above-mentioned tests cannot be applied to unprocessed serum. Agglutination inhibition tests with HCG are already well advanced, pregnancy diagnosis being their main application. Now that highly purified HCG is available, a satisfactory specificity for these tests can be attained. If the immune system for HCG is used for estimating LH, it has to meet additional specificity requirements. Furthermore, the measure of cross-reaction and the choice of standard merit special attention. Finally, a literature survey is given of test systems in which LH and FSH were used as antigens.

Application of commercial test-systems to identify gram-negative facultatively anaerobic bacteria

2016 ◽  
Vol 3 (1) ◽  
pp. 43-48 ◽  
Author(s):  
V. Patyka ◽  
L. Butsenko ◽  
L. Pasichnyk
Keyword(s):  
Erwinia Amylovora ◽  
Anaerobic Bacteria ◽  
Biochemical Properties ◽  
Test System ◽  
Phytopathogenic Bacteria ◽  
Gram Negative ◽  
Test Systems ◽  
Facultatively Anaerobic ◽  
Microbiological Methods

Aim. To validate the suitability of commercial API 20E test-system (bioMerieux) for the identifi cation and characterization of facultative gram-negative phytopathogenic bacterial isolates. Methods. Conventional mi- crobiological methods, API 20E test-system (bioMerieux) according to the manufacturer’s instructions. Re- sults. The identifi cation results for Erwinia amylovora, Pectobacterium carotovorum and Pantoea agglome- rans isolates were derived from the conventional and API 20E test systems, which, were in line with the literature data for these species. The API 20E test-system showed high suitability for P. agglomerans isolates identifi cation. Although not all the species of facultatively anaerobic phytopathogenic bacteria may be identi- fi ed using API 20E test-system, its application will surely allow obtaining reliable data about their physiologi- cal and biochemical properties, valuable for identifi cation of bacteria, in the course of 24 h. Conclusions. The results of tests, obtained for investigated species while using API 20E test-system, and those of conventional microbiological methods coincided. The application of API 20E test-system (bioMerieux) ensures fast obtain- ing of important data, which may be used to identify phytopathogenic bacteria of Erwinia, Pectobacterium, Pantoea genera.

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