Title :
An integrated smart sensor for flow and temperature with I2 C bus interface: FTS2
Author :
Hogenbirk, Erik J. ; Verhoeven, Huibert-Jan ; Huijsing, Jshan H.
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands
fDate :
30 Apr-3 May 1995
Abstract :
A fully integrated smart sensor for flow and temperature has been realized. The sensor is able to communicate with a simple microcontroller using an I2C serial data bus interface. The flow rate is obtained by determining the power needed to maintain a constant temperature difference above the flow temperature. The absolute temperature is measured using a bipolar PTAT circuit and a sigma-delta A-D converter. On-chip sensor settings can be programmed by the microcontroller. All digital processing needed to measure flow and temperature is realized on the chip
Keywords :
flow measurement; intelligent sensors; microcontrollers; peripheral interfaces; temperature measurement; FTS2; I2C bus interface; absolute temperature; bipolar PTAT circuit; constant temperature difference; flow measurement; integrated smart sensor; microcontroller; on-chip sensor settings; serial data bus interface; sigma-delta A-D converter; temperature measurement; Capacitors; Clocks; Delta-sigma modulation; Intelligent sensors; Microcontrollers; Registers; Semiconductor device measurement; Temperature control; Temperature measurement; Temperature sensors;
Conference_Titel :
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2570-2
DOI :
10.1109/ISCAS.1995.523870
