FEEDBACK PROTECTION OF PRESSURE MEASUREMENT DEVICES
First Claim
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1. An apparatus for measuring a pressure of an environment, comprising:
- a pressure measuring device coupled to a first end portion of an elongated channel, the elongated channel having an exit aperture spaced apart from the pressure measuring device and coupled to the environment; and
an obstruction detection assembly, including;
a transmitter configured to transmit a transmission signal along the elongated channel;
a receiver configured to receive a reflection signal propagating back along the elongated channel; and
an obstruction detection module operatively coupled to the receiver and being configured to analyze the reflection signal to determine if an obstruction exists in the channel.
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Abstract
Systems and methods for feedback protection of pressure measurement devices are disclosed. In one embodiment, a transmitter inside a pressure measurement device transmits a transmission signal directly or indirectly toward an ambient opening of the pressure measurement device. A reflection of the transmission signal is then received at a receiver and data associated with the transmission signal and the reflection of the transmission signal are examined to determine if an obstruction exists in the pressure measurement device.
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Citations
20 Claims
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1. An apparatus for measuring a pressure of an environment, comprising:
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a pressure measuring device coupled to a first end portion of an elongated channel, the elongated channel having an exit aperture spaced apart from the pressure measuring device and coupled to the environment; and an obstruction detection assembly, including; a transmitter configured to transmit a transmission signal along the elongated channel; a receiver configured to receive a reflection signal propagating back along the elongated channel; and an obstruction detection module operatively coupled to the receiver and being configured to analyze the reflection signal to determine if an obstruction exists in the channel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method, comprising:
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transmitting a transmission signal from inside a pressure measurement device at an ambient opening of the pressure measurement device; receiving a reflection of the transmission signal; and examining data associated with the transmission signal against data associated with the reflection of the transmission signal to determine if an obstruction exists in the pressure measurement device. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. One or more computer readable media having stored thereon computer executable instructions that, when executed by one or more processors, causes the one or more processors to:
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direct a transmitter to transmit a transmission signal from inside a pressure measurement device towards an ambient opening of the pressure measurement device; direct a receiver to receive a reflection of the transmission signal; and examine data associated with the transmission signal against data associated with the reflection of the transmission signal to determine if an obstruction exists in the pressure measurement device. - View Dependent Claims (17, 18, 19, 20)
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Specification