Mecánica Aplicada

Velocidad del sonido en sólidos



Principle

The velocity of sound in acrylics shall be determined by time of flight reflection technique with an ultrasonic echoscope. The measurements are done by reflection method, on three cylinders of different length. Two measurement series are carried out with ultrasonic probes ...

Ecografía con ultrasonido (A-Scan)



Principle

An ultrasonic wave transmitted in a sample will be reflected at discontinuities (defects, cracks). From the relationship between the time of flight of the reflected wave and the sound velocity, the distance between ultrasonic transducer and defects (reflector) can be ...

Ecografía por ultrasonidos (B-Scan)

Principle

The fundamental principles concerning the generation of ultrasonic B-scan images (brightness representation of the reflection amplitudes) are demonstrated with the aid of a simple test ob-ject. The experiment is executed with an ultrasonic echoscope in the pulse-echo-mode and the ...

Detección de discontinuidades

Principle
The experiment demonstrates the application and performance of various non-destructive test methods with the aid of ultrasound. A test object with different types of discontinuities is used to perform various detection methods. First, the test object is scanned in order to determine ...

Tomografía computarizada ultrasónica

Principio

El experimento explica los principios fundamentales de la formación de imagen con un algoritmo CT. Un simple objeto de prueba se usa para crear una tomografía de atenuación y una tomografía de tiempo de vuelo seguido con una discusión de las ...

Superficie de líquidos en rotación

Un recipiente que contiene el líquido se hace girar alrededor de un eje. Las formas de la superficie del líquido un paraboloide de rotación, los parámetros de las cuales se determinarán en función de la velocidad ...

Determinación de la longitud y posición de un objeto oculto

This experiment provides training in determining the length and position of an object based on an X-ray image. A metal pin that is embedded in a wooden block is used as the model. This experiment is also an excellent preparatory exercise for demonstrating the principle of computed ...

Patrón de difracción Debye-Scherrer con tres redes cúbicasde Bravais (geometría Bragg-Brentano)

Principle

Polycrystalline powder samples, which crystallize in the three cubic Bravais types, simple, face-centered and body-centered, are irradiated with the radiation from a Roentgen tube with a copper anode. A swivelling Geiger-Mueller counter tube detects the radiation that is ...

Patrón de difracción Debye-Scherrer de muestras de polvoscon estructura de diamante (geometría Bragg-Brentano)

Polycrystalline powder samples, which crystallize in the three cubic Bravais types, simple, face-centered and body-centered, are irradiated with the radiation from a Roentgen tube with a copper anode. A swivelling Geiger-Mueller counter tube detects the radiation that is ...

Patrón de difracción Debye-Scherrer de muestras de polvoscon estructura cristalina hexagonal (geometría Bragg-Brenta- no)

Principle

A polycrystalline powder sample of zinc is irradiated with the radiation from a X-ray tube with a copper anode. A Geiger-Mueller counter tube is automatically swivelled to detect the radiation that is constructively reflected from the various lattice planes of the crystallites. ...

Patrón de difracción Debye-Scherrer de muestras de polvoscon estructura cristalina tetragonal (geometría Bragg-Bren- tano)

A polycrystalline powder sample of lead dioxide is irradiated with the radiation from a X-ray tube with a copper anode. A Geiger-Mueller counter tube is automatically swivelled to detect the radiation that is constructively reflected from the various lattice planes of the ...

Patrón de difracción Debye-Scherrer de muestras de polvoscon estructura cristalina cúbica (geometría Bragg-Brentano)

A cubic crystalline powder sample is irradiated with the radiation from a X-ray tube with a copper anode. A Geiger-Mueller counter tube is automatically swivelled to detect the radiation that is constructively reflected from the various lattice planes of the crystallites. The ...

Medición de difracción para la determinación de intensidadde reflejos de Debye-Scherrer en una muestra de polvo cúbica (geometría Bragg-Brentano)

Principle

A polycrystalline, cubic face-centered crystallizing powder sample is irradiated with the radiation from a Roentgen tube with a copper anode. A Geiger-Mueller counter tube is automatically swivelled to detect the radiation that is constructively reflected from the various lattice ...

Difractometría Debye-Scherrer para el estudio de la textura de chapas laminadas

Principle

A polycrystalline, cubic face-centered crystallizing copper powder sample and a thin copper sheet are separately irradiated with the radiation from a Roentgen tube with a copper anode. A Geiger-Mueller counter tube is automatically swivelled to detect the radiation that is ...

Espectroscopía con el detector de energía de rayos X

Principle

Various metal samples are subjected to polychromatic X-rays. The resulting fluorescence radiation is analysed with the aid of a semiconductor detector and a multi-channel analyser. The maxima of intensity of the corresponding characteristic X-ray lines are determined. The ...