Experimental method for measuring classical negativity of generic beam shapes

A method for measuring shapes of anatomical surfaces.

In the course of a study of biomechanical aspects of carpal tunnel syndrome, a threedimensional point encoder was built to record surface geometries of hand-wrist structures. The point encoder shown in Fig. 1 consists of a pointer that slides axially and rotates in perpendicular planes. The encoder is instrumented with a LVDT (linear voltage differential transformer) and with two potentiometers...

An experimental method for measuring transfer functions of acoustic tubes

This work proposes an experimental method for direct measurement of transfer functions of acoustic tubes. The method obtains a pressure-to-velocity transfer function from measurement of input volume velocity and output pressures of a target tube. Steady sinusoidal waves from 100 Hz to 5 kHz with a 10-Hz increment were used as a source signal. Experimental results compared with transmission line...

A New Method for Measuring the Angle of Hallux Valgus

Objectives. The aim of this study is to introduce a new way and assign its reliability and validity in measuring the angle of hallux valgus. Methods. In this method, we have proceeded to introduce a simple way for measuring the angle of hallux valgus by using ruler and mathematical formulas. For doing this study, we selected 25students and measured their angle of hallux valgus with new way ...

Measuring the Orientability of Shapes

An orientability measure determines how orientable a shape is; i.e. how reliable an estimate of its orientation is likely to be. This is valuable since many methods for computing orientation fail for certain shapes. In this paper several existing orientability measures are discussed and several new orientability measures are introduced. The measures are compared and tested on synthetic and real...

Development of Measuring Method for 3D Shapes and Dimensions of Micro-components