Design considerations and modifications on an optomechatronic load cell

Alma A. Camacho P.; Francisco Javier Martínez Serrano; Osvaldo M. García D.

doi:10.1117/12.913311

14 October 2011 Design considerations and modifications on an optomechatronic load cell

Alma A. Camacho P., Francisco Javier Martínez Serrano, Osvaldo M. García D.

Proceedings Volume 8287, Eighth Symposium Optics in Industry; 82870X (2011) https://doi.org/10.1117/12.913311
Event: Eighth Symposium Optics in Industry, 2011, Toluca de Lerdo, Mexico

Abstract

We have divided this project in stages the first being the construction of an optomechatronics load cell1, the operating principle is based on the fact that the application on a mechanical load produces a deformation on that element. This deformation causes a reduction in the distance between the transmitter and receiver, resulting in a change in the electrical signal. It should be noted that the distribution of light intensity varies between sender and receiver due to the displacement generated. In a load cell, it was adapted an infrared emitter whose signal is received by the detector at the other end. The second stage was the demonstration that our system is able to measure external loads on a mechanical device through an indirect method for measuring stresses, which we present results generated from the experimental trials with adequate mechanical equipment in the cited work. We have implemented a strain sensitive prototype. As a result of the first and second stages to implement the system is to test it on academic applications and then adapt it to industrial environment. Note that the third stage there was a validation of the optomecatronic load cell with ASTM E74-061-2 shows the result with the basic metrological characteristics of resolution, sensitivity, repeatability, which requires it. We are currently analyzing other mechanical design proposals to improve their elastic behavior and the efficiency of this measurement system, because they increase the range of load values at which the expected response should be linear.

Citation Download Citation

Alma A. Camacho P., Francisco Javier Martínez Serrano, and Osvaldo M. García D. "Design considerations and modifications on an optomechatronic load cell", Proc. SPIE 8287, Eighth Symposium Optics in Industry, 82870X (14 October 2011); https://doi.org/10.1117/12.913311

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KEYWORDS

Opto mechatronics

Prototyping

Sensors

Mechanical engineering

Standards development

Mechanical efficiency

Metrology

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