Heat measuring apparatus and method thereof

Abstract

The testing device comprises the controllable thermal sensor, hot type sensor, differential pressure sensor, multichannel A / D,Dú»A converters and control set, fan module. Configuration of typical circuit board of analog communication device for the controllable thermal sensor is installed on the analog single board. The hot type sensor and differential pressure sensor through socket joint mode are installed on the single board. The tested signals of the hot type sensor and differential pressure sensor and the control signal of the controllable thermal sensor through the linker on the analog single board and multichannel Aú»D,Dú»A converters are connected to the control device. Since no uniformity of wind speed on surface of PCB is tested at multiple test points in the invention, measuringerror of hand held devices is reduced. Thus, the invention can simulates heat dispersion status and test and validate fortified heat dispersion effect directly.

Description

technical field [0001] The invention relates to a thermal testing device and a testing method thereof, in particular to a thermal testing device and a testing method thereof for simulating the internal flow of air-cooled electronic communication equipment. Background technique [0002] With the increase of power consumption of electronic communication equipment and the decrease of structural volume, heat dissipation has become an important issue in product design. Thermal testing has become an important part of product design verification. However, in the prototype stage, sometimes due to imperfect product functions, the power consumption of the equipment cannot reach the maximum level, and the heat dissipation index cannot be tested and verified in time. After the product development is completed, the test and verification often requires replacing the fan or changing the structure. It will cause problems such as increased noise and delay the product development cycle. [0...

AI Technical Summary

Problems solved by technology

However, these types of anemometers cannot well satisfy the internal flow field simulation and distribution testing of electronic communication equipment.

The reason is that electronic communication equipment mostly adopts the form of front-mounted plug-in panels, such as figure 1 As shown, the single-board panels of each printed circuit board are vertically inserted into the machine slot facing forward, so if the existing tester is used, the single-board panels must be removed, but the removal of the single-board panels will cause the air volume in the air duct to decrease. However, the processing and testing process holes on the panel not only need to be processed separately, but also the test point is relatively single, which cannot accurately test the distribution of the wind speed field in the slot. At the same time, if the single board panel is covered with connectors, the product This kind of test verification can't be done at all in operation

In particular, the existing wind speed tester with a hand-held probe cannot accurately test the wind speed, wind pressure and other indicators of the required test points; it cannot accurately and comprehensively verify whether the pressure and wind speed distribution in the system meet the design requirements; it cannot accurately judge Whether the working point of the fan is appropriate

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