公开(公告)号：US20220145873A1

公开(公告)日：2022-05-12

申请号：US17519294

申请日：2021-11-04

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Michele Alessio DELLUTRI ,  Fabio PASSANITI ,  Enrico Rosario ALESSI

IPC: F04B43/12 ,  F04B49/06

Abstract: Various embodiments provide a device for measuring the flow of fluid inside a tube moved by a peristaltic pump is provided with: a detection electrode arrangement coupled to the tube to detect an electrostatic charge variation originated by the mechanical action of the peristaltic pump on the tube; a signal processing stage, electrically coupled to the detection electrode arrangement to generate an electrical charge variation signal; and a processing unit, coupled to the signal processing stage to receive and process in the frequency domain the electrical charge variation signal to obtain information on the flow of a fluid that flows through the tube based on the analysis of frequency characteristics of the electrical charge variation signal.

公开(公告)号：US20210253419A1

公开(公告)日：2021-08-19

申请号：US17175410

申请日：2021-02-12

Applicant: STMicroelectronics S.r.l.

Inventor： Enrico Rosario ALESSI ,  Fabio PASSANITI

IPC: B81B7/00 ,  B81B7/02 ,  G06N3/08

Abstract: An analysis method of a device through a MEMS sensor is provided in which the MEMS sensor includes a control unit and a sensing assembly coupled to the device. The analysis method includes acquiring, through the sensing assembly, first data indicative of an operative state of the device. Testing is performed for the presence of a first abnormal operating condition of the device. If the first abnormal operating condition of the device is confirmed, a self-test of the sensing assembly is performed to generate a quantity indicative of an operative state of the sensing assembly. The self-test includes acquiring, through the sensing assembly, second data indicative of the operative state of the sensing assembly, generating a signature according to the second data, and processing the signature through deep learning techniques to generate said quantity.

公开(公告)号：US20210003524A1

公开(公告)日：2021-01-07

申请号：US16917285

申请日：2020-06-30

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Fabio PASSANITI ,  Enrico Rosario ALESSI

IPC: G01N27/04 ,  G01N33/00

Abstract: A method of operating a gas sensing device is described. The method includes receiving a signal indicative of a value of resistance of a gas sensing element, processing the signal received to compute a value of a gas concentration, performing a comparison of the value of gas concentration to a threshold, and, based on the outcome of a diagnosis procedure, setting the device to an alert signal issue state as a function of the outcome of the comparison. The diagnosis procedure includes computing a set of parameters indicative of the state of the gas sensor circuit, and classifying the gas sensor circuit in one of a first, a second and a third class based on the parameters.