Manometer, especially gauge blood pressure, procedure for determining pressure values, method of calibrating a gauge and computer program for implementing these procedures

摘要

Gauge (100; 700) for determining at least one pressure value (122) describing a pressure of a fluid flowing in a pulsed in a phase of the pulsating flow, which comprises the following features: a characterizing pulse wave ( 110) is designed to obtain information propagation time (112) describing a propagation time of a pulse wave between a first location and a second location, and amplitude information (114) describing a variation of a measuring signal, which is based on the pulse wave, between two phases of the pulse wave; and determiner pressure values ​​(120) that is designed to obtain a first pressure value (132) describing a fluid pressure in a first phase of the pulsating flow based on the information propagation time (112) and using a first reproduction (134) that reproduces the propagation time of the pulse wave at the first pressure value and to obtain a second pressure value (136) describing a fluid pressure in a second phase of the pulsating flow based on the first pressure value (132) and amplitude information (114) using a second mapping (138) describing the second reproduction ratio, under the first pressure value (132) between the first pressure value (132) , the second pressure value (136) and amplitude information (114).