Vertical positioning surveillance by magnetostrictive transducer

• Autor(a) principal: Carvalho, Anderson da Silveira
• Data de Publicação: 2015
• Outros Autores: Lopes, Cristian, Pinto, Otávio de Oliveira, Nunes, Cristian Duarte, Borges, Marcelo Favaro, Strohaecker, Telmo Roberto
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFRGS
• Texto Completo: http://hdl.handle.net/10183/140697
• topic: Controlador programável; Transdutores ultrasônicos; Ensaios de impacto

This work purpose is to create a positioning automated system of a tailstock to perform impact resistance tests on silicone mammary implants. This system is capable to measure and oversight the positioning through interrelation between three main components: programmable logic controller, human-machine interface and magnetostrictive transducer. Together, these components form an operational closed loop that ensures an appropriate positioning for the impact device. The paper describes how the closed loop works and also the algorithm implemented in the programmable logic controller which surveys the positioning. As a last topic, the paper presents the operator work on the machine’s operation in conjunction with human-machine interface. The results were satisfactory and in accordance with the limits determined on ABNT NBR ISO 14607 for this method of tests.