Measurement for tactile sensation
Fei Shao
Poster
Last modified: 2008-05-13
Abstract
The feel of films, wrapping paper, cardboards and other packaging materials are important to the commercial success of foods wrapped in them. It is known from people’s self-report study that different surfaces do provoke different subjective responses. There are several mechanical parameters, including friction, vibration, compliance and thermal properties, which are important with respect to the sensory feel. This paper describes the design, construction and use of a novel measurement system for tactile sensation that can be used to evaluate the feel of different packaging materials. Experiments were conducted by sliding or pressing an artificial fingertip with embedded sensors against the surfaces of different samples which were fixed on a force table. The friction coefficients, frequencies of vibration, compliance and rates of change of temperature were obtained. Further, 30 volunteers were invited to touch the samples and complete questionnaires about how they felt about them. Strong correlations were found between the people feelings and the physical measurements.