| 摘要 |
PROBLEM TO BE SOLVED: To provide fluid flow rate sensors which can more accurately and quickly determine the flow rate, and which are self-calibrated and temperature-compensated.SOLUTION: A fluid flow rate sensor includes a detection circuit which generates a first signal corresponding to an output voltage of a bridge circuit, and a second signal corresponding to a fluid temperature. A control module can more accurately and quickly determine the fluid flow rate on the basis of the first signal, the second signal, and a look-up table. The look-up table includes a plurality of curves plotted according to data, indicating relationship among the fluid temperature, the output voltage and the fluid flow rate. The fluid flow rate sensor is inherently temperature-compensated and has a shorter response time. |
