In this paper, the construction of a wireless data acquisition system is described. The system enable us monitoring process that are developed in hazardous environments, or other physical phenomena that must be realized far away the laboratory. Three basic units compose the system: analogic to digital converter with transmitter, receiver, and the PC with application software.

In this work, we describe a practical and simple system to control the operation of a diode laser in a specific frequency using an external optical cavity. We show that fixing the current and temperature, the laser can oscillate selectively at different frequencies by controlling the longitude of the external cavity. This system laser was used with success in an experiment of absorption saturated spectroscopy at the line D2 of cesium.

En este trabajo, describimos un sistema simple y practico para controlar la operación de un diodo láser en una frecuencia específica mediante el uso de una cavidad óptica externa. Nosotros mostramos que para una corriente y temperatura fijas, el láser puede oscilar selectivamente en frecuencias diferentes controlando la longitud de la cavidad externa. Este sistema láser fue utilizado con éxito en un experimento de espectroscopia de absorción saturada en la línea D2 del cesio.

En este artículo se describe la construcción de un sistema inalámbrico. El sistema permite el monitoreo de procesos que se desarrollan en ambientes corrosivos u otros fenómenos físicos que se realizan lejos del laboratorio. El sistema se compone de tres partes principales: el conversor analógico a digital con su transmisor, el receptor y la computadora con software de aplicación.

In this work, we describe a practical and simple system to control the operation of a diode laser in a specific frequency using an external optical cavity. We show that fixing the current and temperature, the laser can oscillate selectively at different frequencies by controlling the longitude of the external cavity. This system laser was used with success in an experiment of absorption saturated spectroscopy at the line D2 of cesium.

In this paper, the construction of a wireless data acquisition system is described. The system enable us monitoring process that are developed in hazardous environments, or other physical phenomena that must be realized far away the laboratory. Three basic units compose the system: analogic to digital converter with transmitter, receiver, and the PC with application software.