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Integrated total air temperature probe and electronics

A technology for electronic instruments and total temperature, which is used in instruments, scientific instruments, temperature measurement of moving fluids, etc., and can solve the problems of interconnecting cables being easily affected by electrical noise, interfering signals, and complex interface requirements.

Inactive Publication Date: 2011-05-25
ROSEMOUNT AEROSPACE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, signal loss tends to occur on interconnecting cables
In addition, interconnecting cables are susceptible to electrical noise, which can interfere with transmitted signals
also, the interface requirements between the interconnect cables and the flight data computer are relatively complex

Method used

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  • Integrated total air temperature probe and electronics
  • Integrated total air temperature probe and electronics
  • Integrated total air temperature probe and electronics

Examples

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Embodiment Construction

[0014] refer to figure 1 , shows a simplified assembly diagram of an exemplary total air temperature (TAT) sensor 10 according to one embodiment of the present invention. The TAT sensor 10 includes a probe 12 and an electronics package 14 . In one embodiment, probe 12 is integrated with electronics package 14 .

[0015] The probe 12 includes an air inlet 16 , a main outlet passage 18 , a sensor channel 20 , and a sensor assembly 22 that includes a thermometer or temperature sensing element 24 that senses air temperature within the sensor channel 20 . Heater 26 is embedded in housing 30 of probe 12 . In one embodiment, heater 26 is used as a de-icing heater. The temperature sensed by sensing element 24 may be affected by heater 26 . Accordingly, a radiation shield 32 (eg, a thermal shield) is provided around the sensing element 24 to reduce sensing errors. Part of the air entering the air inlet 16 exits the main outlet channel 18 , while another part of the air enters the ...

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Abstract

A total air temperature sensor includes a probe secured to a first side of a vehicle surface. The probe includes an air inlet and a temperature sensing element. Air flows into the air inlet and passes by the temperature sensing element. The temperature sensing element produces a temperature sensing element electrical signal as a function of a temperature of the air. The total air temperature sensor also includes an electronics package secured to a second side of the vehicle surface. Electronics in the electronics package receive the temperature sensing element electrical signal from the temperature sensing element and determine a total air temperature as a function of the temperature sensing element electrical signal.

Description

[0001] This application claims the benefit of US Provisional Application No. 60 / 870,716, filed December 19, 2006, which is hereby incorporated by reference. Background technique [0002] The invention relates to sensors for determining total air temperature. It obtains a specific application in combination with a total air temperature sensor including an integrated probe and integrated electronics and will be described with a specific reference. It will be appreciated, however, that the invention is also feasible for other applications. [0003] Total air temperature (TAT) sensors are used on aircraft, such as airplanes, to determine, for example, the total temperature, true air speed, Mach number, etc. of the aircraft as it passes through an air mass. Current distributed flight data structures rely on TAT sensors with analog (resistive) outputs that interface with an air data computer at a remote location on the aircraft. In addition to calculating the overall temperature, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K13/02
CPCG01K13/02G01K13/028
Inventor M·L·桑纳斯G·奥斯丁M·J·比恩茨D·泰根W·威廉斯
Owner ROSEMOUNT AEROSPACE
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