A testbench system is disclosed. The system includes a network interface; a memory storage; a transducer; and one or more processors. The one or more processors are configured to operate in a first phase and: perform calibration of the transducer and generate calibration data; generate a unique identification (CTS-ID) for the transducer based on the calibration data; mark the transducer with the CTS-ID; and provide the CTS-ID and the calibration data to the network interface for transmission to a database

The invention relates to an installation (1) for detecting and locating a leak in at least one fluid transport circuit (Ps, Pt), notably an anemometer circuit of an aircraft, having a leak test apparatus (10) including means (12) for detecting a leak in the said at least one fluid transport circuit (Ps, Pt). In one example, the means for locating a leak includes injecting means (Pp, 14, Ev2) of a trace gas under pressure into the said at least one fluid transport circuit (Ps, Pt), which means are situated in the said leak test apparatus (10), and a trace-gas detection probe (30) intended to be moved along the said at least one fluid transport circuit (Ps, Pt) on the outside thereof, in order to locate the leak.

A pressure control valve system includes a pressure control valve, an electric actuator, an upstream pressure sensor, a downstream pressure sensor, and a controller. The electric actuator adjustably opens and closes the pressure control valve. The upstream pressure sensor measures pressure upstream of the pressure control valve and outputs a plurality of sequential upstream pressure signals over a plurality of successive periods in time. The downstream pressure sensor measures pressure downstream of the pressure control valve and outputs a plurality of sequential downstream pressure signals over the plurality of successive periods in time. The a controller receives the upstream and downstream pressure signals and outputs a plurality of sequential command signals to the electric actuator. Each sequential command signal is based on a respective one of the plurality of sequential downstream and upstream pressure signals for a respective one of the plurality of successive periods in time.

A method of monitoring microelectromechanical system (MEMS) pressure sensors arranged on a carrier includes: generating a first measurement value by a first MEMS pressure sensor arranged on the carrier; generating a second measurement value by a second MEMS pressure sensor arranged on the carrier; and determining, by an integrated circuit, whether the first measurement value of the first MEMS pressure sensor corresponds to the second measurement value of the second MEMS pressure sensor in accordance with a predefined criterion, wherein the integrated circuit is arranged on the carrier and is coupled to the first MEMS pressure sensor and the second MEMS pressure sensor.

The present disclosure illustrates a calibration circuit for a pressure sensing device. The calibration circuit, via at least one passive component installed in the pressure sensing device, obtains a calibration gain factor of at least one converter also installed in the pressure sensing device, and when the pressure sensing device is in a regular operating mode, the calibration gain factor can be used to calibrate the output of the converter, so that a sensing signal inputted into the pressure sensing device can be correctly converted to a relevant pressure value.

A pressure control system for an environment to be pressurized includes a controller configured to calculate at least one of: a calculated pressure sensor rate of change error; and a calculated pressure sensor error. The calculated sensor rate of change error is based on a plurality of first environment air pressure signals over a first time period; and the calculated sensor error is based, over a second period of time, a difference between ambient air pressure signals and second environment air pressure signals. A processor in communication with the controller is configured to compare at least one of: the calculated pressure sensor rate of change error with at least one pressure sensor rate of change error control limit; and the calculated pressure sensor error with at least one pressure sensor error control limit. The at least one pressure sensor rate of change error control limit is based on past pressure sensor rate of change errors; and the at least one pressure sensor error control limit is based on past pressure sensor errors.

A pressure sensor comprises a deformable substrate, at least one coil supported by the substrate and responsive to a changing coil drive signal to produce a changing magnetic field, a fluid chamber having a first wall formed by the substrate and a second wall formed by a conductive material and positioned proximate to the at least one coil so that the changing magnetic field produces eddy currents within the conductive material that generate a reflected magnetic field, and at least one magnetic field sensing element configured to detect the reflected magnetic field and produce a signal responsive to a distance between the magnetic field sensing element and the second wall. The substrate is deformable by fluid pressure within the fluid chamber and the deformation of the substrate changes the distance between the magnetic field sensing element and the second wall.

A contamination detector device may compute a cross-sensitivity of a pressure sensor based on an amount of pressure change sensed by the pressure sensor and an amount of acceleration change sensed by an acceleration sensor. The cross-sensitivity of the pressure sensor indicates a measure of sensitivity of the pressure sensor to acceleration. The contamination detector device may determine, based on the cross-sensitivity of the pressure sensor, whether the pressure sensor is contaminated. The contamination detector device may selectively perform a contamination action based on whether the pressure sensor is contaminated.

Embodiments include a wearable electronic device including a housing having an internal wall separating an internal chamber from an external chamber, an outer shell defining a port that connects the external chamber to an external environment, a membrane positioned at an opening in the internal wall and configured to equalize a pressure within the internal chamber with a pressure of the external environment, a first pressure-sensing device positioned in the internal chamber and configured to produce a first output, a second pressure-sensing device positioned in the external chamber and configured to produce a second output, and a processing unit configured to estimate the pressure of the external environment using the second output in accordance with a determination an accuracy condition satisfies a criteria and estimate the pressure of the external environment using the first output in accordance with a determination the accuracy condition does not satisfy the criteria.

An apparatus includes a sensor module, an offset diagnostic module, and a notification module. The sensor module is in operative communication with a cylinder pressure sensor and structured to acquire cylinder pressure data from the cylinder pressure sensor indicative of an actual in-cylinder pressure of a cylinder of an engine. The offset diagnostic module is structured to interpret the cylinder pressure data to determine an offset of the cylinder pressure sensor based on a reference in-cylinder pressure and the actual in-cylinder pressure. The notification module is structured to provide an offset error notification responsive to the offset being greater than a threshold offset.