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Vol. 60, Issue 10, October 2005, pp. 432-438

 

Bullet

 

Intelligent Digital Pressure Sensors and Transducers Based on

Universal Frequency-to-Digital Converter (UFDC-1)

 

 

Sergey Y. YURISH

Institute of Computer Sciences and Technologies, National University Lviv Polytechnic

Bandera str., 12, 79013 Lviv, UA

Tel.: +380502280003, fax: +380 32 2971641

E-mail: syurish@mail.lviv.ua

 

Received: 3 August 2005   Accepted: 15 October 2005   Published: 24 October 2005

 

Abstract: The application specific paper describes a design approach for digital pressure sensors and transducers. Practical realizations are based on the Universal Frequency-to-Digital Converter (UFDC-1). By eliminating the need for ADC, the frequency (duty-cycle or PWM)-to-digital conversion schemes reduce the systems complexity. The results of such design approach are high-performance single-chip pressure sensors with truly digital output (RS-232 interface) or bus output (SPI or I2C) at significant reduction of production cost, time-to-market and simplification of the design process. Practical examples of direct interfacing of frequency, PWM and duty-cycle output pressure sensors and transducers to the UFDC-1 are given.

 

Keywords: pressure sensors, digital sensors, intelligent sensor, universal frequency-to-digital converter, frequency output, duty-cycle, UFDC-1

 

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