Device and method for checking a probe for measuring the pressure of a flow

摘要

A device is provided for checking a probe for measuring the pressure of a flow, the probe comprising an internal volume and at least one orifice communicating with the outside of the volume. The device comprises: an acoustic transmitter and an acoustic receiver; connection means to connect the device to the probe, such that the transmitter transmits an acoustic signal propagated in the internal volume, and such that the receiver picks up an acoustic signal observed in the internal volume; processing means suitable for comparing the observed signal to a reference signal. The connection means are configured in such a way that an incorrect connection of the probe disturbs the propagation in the internal volume of an acoustic signal transmitted by the transmitter. The processing means are configured to detect an incorrect connection of the probe by comparing the acoustic signal observed in the internal volume with the reference signal.

主权项

1. A device for checking a probe for measuring the pressure of a flow; the probe comprising an internal volume and at least one orifice communicating with the outside of the volume; the device comprising:
an acoustic transmitter and an acoustic receiver, connection means intended to connect the device to the probe, in such a way that the transmitter transmits an acoustic signal that is propagated in the internal volume and in such a way that the receiver picks up an acoustic signal observed in the internal volume, and processing means suitable for comparing the observed signal to a reference signal; the connection means being configured in such a way that an incorrect connection of the probe disturbs the propagation in the internal volume of an acoustic signal transmitted by the transmitter, and the processing means being configured to detect an incorrect connection of the probe by comparing the acoustic signal observed in the internal volume with the reference signal; wherein the connection means comprise a sleeve open at a first end and comprise an abutment intended to come into contact with the probe when correctly connected to the device; and wherein the sleeve comprises at least one detection hole passing through the sleeve positioned in proximity to the abutment, intended to be blocked by the probe when correctly connected to the device; the at least one detection hole not being blocked in the case of an incorrect connection with the probe so as to disturb the propagation in the internal volume of an acoustic signal transmitted by the transmitter.