In recent years, automotive companies have tried to implement in their vehicles devices that supply renewable energy to the electromechanical systems that make them up, giving rise to well know hybrid and electric cars. The main idea to produce this kind of energy is focused on taking advantage of resources that in the past were useless due to the lack of technology. This work presents a preliminary system of electrical charge from the use of sun heat that is stored in the front panel of the car while it is parked in such a way that the solar radiation falls directly on it. The system uses inversely a Peltier cell, an electronic element that is composed of plates of semiconductor material that has the property of generating heat or cold depending on the polarity that is applied to the plates, for this case one of the cell faces is used to capture the heat energy through the vehicle front windshield. This work presents a system of heat conversion in electrical energy using a Peltier cell, preliminary experimental results obtained are discussed.
The design and implementation of an electronic system to real-time capture and processing speckle interference patterns is presented. Because of the random and instability speckle patterns nature, is very useful a system wich allows obtaining and visualizing interference speckle patterns in the shortest time possible. Proposed system captures the first speckle pattern as steady image while captures subsequent patterns from the same source. Images are electronically transformed separately into value arrays and subtracted to obtain real-time interference speckle patterns, these patterns are automatically archived for later analysis. System consist of a CCD camera, a computer interface that makes capturing, a transparent object and a 4f interferometric system whose source is a laser that passes through diffuser glass in order to obtain speckle effect. Experimental results and analytic explanation is showed bellow.
Proc. SPIE. 10209, Image Sensing Technologies: Materials, Devices, Systems, and Applications IV
KEYWORDS: Gas sensors, Detection and tracking algorithms, Sensors, Calibration, Bioalcohols, Data acquisition, Signal processing, Microcontrollers, Sensing systems, Resistors, Data conversion, Sensor calibration, Electromechanical design
It have been proposed different solutions to the problem of gas leak detection one being the use of mobile systems. An autonomous system equipped with a gas sensor (ethanol) and controlled by a microcontroller and an algorithm designed to follow the trace of smell in terms of concentration that existed in the place of taking the reading by the sensor built without considering brownouts only taken the arrangement proposed by the sensor, thus the location of the source is made and direct the system directly. In this paper the results of location system made in different workspaces, focusing primarily on the acquisition of sensor data with an analog-digital conversion 10 bits are presented whose resolution would be 4.8 mV per bit against the standard 19 mV commercial resolution. Experimental results and analytic explanation is showed below.