Measurement Chamber Temperature Conditioning Element
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Solution Overview
Problem
Existing measurement systems face challenges in accurately and efficiently achieving target temperatures at a device under test, especially under extreme conditions, due to the inefficiency of fluid temperature conditioning and potential damage to constructive parts like seals and bearings.
Innovation Solution
A measurement chamber with an integrated temperature conditioning element, which is configured to condition fluids both entering and leaving the chamber, ensuring accurate and efficient temperature control without damaging constructive parts. This chamber can be designed as an anechoic chamber for over-the-air measurements and includes a thermally isolated space for precise temperature management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a feedthrough assembly with a pipe is used to transport fluid into the anechoic chamber, then fluid can be transported into the chamber, but radio frequency radiation leaks through the pipe
Solution Approach 1:
The patent introduces a temperature conditioning element as an intermediary component inside the anechoic chamber that conditions the fluid temperature without requiring the fluid to travel through the chamber via a pipe. This eliminates the pipe penetration that causes RF leakage while still achieving the desired temperature control of the device under test.
Solution Approach 2:
The temperature conditioning function is extracted from the external feedthrough assembly and placed inside the anechoic chamber as a separate temperature conditioning element. This separates the fluid transport function (through the feedthrough assembly) from the temperature conditioning function (inside the chamber), eliminating the need for temperature-conditioned pipes penetrating the chamber wall.
2Quantity of substance
If fluid is conditioned in a defined manner by an environmental conditioning device outside the anechoic chamber, then fluid can be conditioned, but achieving target temperature at the device under test is inaccurate and inefficient
Solution Approach 1:
The fluid is pre-conditioned in temperature outside the anechoic chamber before entering through the feedthrough assembly. This preliminary temperature conditioning reduces the temperature difference that needs to be compensated inside the chamber, improving the accuracy and efficiency of achieving the target temperature at the device under test.
Solution Approach 2:
The patent employs temperature sensors to monitor the actual temperature of the device under test and feeds this information back to control the temperature conditioning element. This closed-loop feedback system continuously adjusts the temperature conditioning to achieve the precise target temperature, improving measurement precision.
3Temperature
If extreme temperatures are applied to achieve target temperature at the device under test, then temperature control is achieved, but constructive parts such as seals or bearings are damaged
Solution Approach 1:
The patent applies different temperature conditions to different parts of the system: the device under test is subjected to extreme temperatures for accurate measurement, while the constructive parts (seals, bearings) are protected from extreme temperatures through thermal management. This localized temperature control achieves measurement accuracy without damaging reliable components.
Solution Approach 2:
The patent introduces thermal management measures beforehand to protect constructive parts from extreme temperature damage. By pre-conditioning the fluid temperature and using temperature conditioning elements, the system cushions the vulnerable components against thermal shock and extreme temperature exposure while still enabling accurate temperature measurement of the device under test.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution allows for precise and efficient achievement of target temperatures at the device under test, while preventing damage to seals and bearings, even under extreme temperature conditions, thereby enhancing measurement accuracy and reliability.
Implementation Method 1
a temperature conditioning element arranged inside the measurement chamber. In this context, the temperature conditioning element is configured to be temperature-effective with respect to the inlet and/or inlet guide according to a first temperature and/or to be temperature-effective with respect to the outlet and/or outlet guide according to a second temperature
Implementation Method 2
a thermally isolated space inside the measurement chamber for surrounding the device under test
Data Source
AI summary
A measurement chamber for performing measurements with respect to a device under test, especially under different temperature conditions, is provided. Said measurement chamber comprises an inlet and/or inlet guide for intake of a fluid, especially a temperature pre-conditioned fluid, into the measurement chamber, an outlet and/or outlet guide for out-take of the fluid from the measurement chamber, and a temperature conditioning element arranged inside the measurement chamber. In this context, the temperature conditioning element is configured to be temperature-effective with respect to the inlet and/or inlet guide according to a first temperature and/or to be temperature-effective with respect to the outlet and/or outlet guide according to a second temperature.