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METHOD AND DEVICE FOR MEASURING RESISTORS BY MEANS OF A DIRECT INTERFACE CIRCUIT
WO21044071
The use of various types of sensors has become one of the paradigms of the current world. There is practically no field of human activity where the information provided by these devices has not already become essential. One of the most widely used types of sensors are resistive sensors. These base their operation on the measurement, by an electronic system, of the resistivity of a certain element that constitutes the essential part of the sensor. The simplicity of the electronics required for the measurement and the speed with which it is carried out are decisive for improving the usability of resistive sensors. In this invention, the electronic circuit that is built for the measurement of resistive sensors is very simple, and can be directly connected with programmable electronic devices such as microprocessors or FPGAs, which allows obtaining the information already digitized and with great precision. . The use of an innovative reading system allows the circuit to carry out measurements faster than known proposals.
The invented system allows obtaining digital information from a resistive sensor with minimal hardware and at a higher speed than the circuits used up to now. Invention belonging to the field of electronics. Its use is susceptible in any application in which it is necessary to read information from a resistive sensor, and especially, if the information has to be digital. Thus, any application that needs Strain Gauges, Thermoresistors, Magnetoresistors, Hygrometers, Gas Sensors, etc., can use this invention.