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A novel, simple and high accuracy dual slope direct digital converter suitable for differential capacitive sensors is presented in this work. The proposed technique provides a linear digital output proportional to the parameter being sensed by differential capacitive sensors irrespective of the fact that the sensor could possess either a linear or an inverse characteristic. In the proposed technique,...
Today, quality control is a nodal point in many industries, and in the glass one in particular; in most cases the human control does not catch up with the pressing market requirements, therefore computer vision inspection systems are preferable to reduce costs and to improve the product quality, but several problems must be solved. In this paper a prototype system, able to reproduce all the functionalities...
Applications of modern automotive electronics often rely on data from various electronic control units (ECUs). A widespread communication system to enable the data exchange is the Controller Areas Network (CAN), implementing a priority-based media access scheme. Assessing important aspects of data transmission is done in both the early phase of system design by means of simulation or analytical evaluation...
This paper describes a service-oriented sensor data interoperability architecture for Institute of Electrical and Electronics Engineers (IEEE) 1451 smart transducers. A sensor data interoperability prototype system based on the proposed architecture is presented. A case study of reading sensor data is provided to illustrate sensor data interoperability between the IEEE 1451 smart transducers and Open...
This paper describes the Sensor Alert Web Service (SAWS) for the Institute of Electrical and Electronics Engineers (IEEE) 1451-based sensor networks developed at the National Institute of Standards and Technology (NIST). The SAWS consists of the Sensor Alert Notification Producer Service (SANPS) and Sensor Alert Notification Consumer Service (SANCS). The SANPS and SANCS are described in the Web Service...
Traditional wireless sensors rely on monolithic transceivers optimizing cost but offering a very low flexibility. On the other hand, microwaves in the GHz range are used for displacement and position sensing. In this work a new architecture for wireless sensors, called wireless ultra smart sensor, is introduced. The new sensor architecture is built using software defined radio concepts and it has...
In this work a novel inertial sensor is presented, which can be used as a low band accelerometer, a vibration sensor or an inclinometer. The device consists of a glass plate filled with deionized water surrounding a small volume of ferrofluid; a permanent magnet is used to fix the position of the ferrofluidic mass in a compliant position. The effect of an external stimulus can be estimated by measuring...
An Electromagnetic Tomography (EMT) prototype system based on integrated impedance analyzer is proposed and developed in this paper. In the prototype system the excitation signal generation and measurement signal demodulation are both realized by using an integrated impedance analyzer IC controlled by an embedded microcontroller. The sensor is constructed with a parallel excitation layer, which is...
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