PAIRED INTERMEDIATE FREQUENCY (IF) SAMPLING FOR PULSE TRANSIT TIME LEVEL SENSORS

摘要

According to one embodiment, the invention discloses a pulse transit time level sensor which comprises a sampling device for sampling an IF signal at discrete points in time and for converting sampling values into digital sampling values and a digital signal processing device for subsequent processing of the digital sampling values by calculating at least one new value, which characterises the IF curve, from respectively two digital sampling values.