Volumetric-flow measuring apparatus

A technology of volume flow and measuring instrument, which is applied in the direction of liquid/fluid solid measurement, volume/mass flow generated by mechanical effects, measurement flow/mass flow, etc., to achieve the effect of eliminating assembly steps

Inactive Publication Date: 2015-07-15
TESTO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This measurement error can be on the order of 50% or more of the measured value

Method used

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  • Volumetric-flow measuring apparatus
  • Volumetric-flow measuring apparatus

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Embodiment Construction

[0027] Commonly described below Figures 1 to 3 .

[0028] The volumetric flowmeter, identified as a whole with 1 , has a measuring cell 2 , known per se and not further shown here, for measuring the volumetric flow, which is arranged in a base body 3 . In this case, the measuring unit 2 can be removable or fixedly arranged in the base body 3 .

[0029] A measuring funnel 4 is arranged on the base body 3 .

[0030] The measuring funnel 4 is made of collapsible material and can be in the folded transport position ( figure 1 ) with the expanded usage position ( image 3 ) and between the use position and the transport position. here, figure 2 Intermediate positions in the conversion process are shown.

[0031] In the use position, the measuring funnel 4 opens out a funnel opening 5 which can be fitted in a manner known per se on an air supply or outlet of a building ventilation system for measuring the volume flow. The measuring funnel 4 is thus used to capture the air f...

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Abstract

A volumetric-flow measuring apparatus (1) is provided using a measuring funnel (4) and a flow straightener (6) from a foldable material, which is disposed in the measuring funnel (4), configured such that the measuring funnel (4) and the flow straightener (6) are convertible between a folded-up transport position and an unfolded use position.

Description

technical field [0001] The invention relates to a volume flowmeter with a base body accommodating a measuring cell and a measuring funnel made of foldable material mounted on the base body, wherein the measuring funnel can be moved from a transport position Switch to position of use. Background technique [0002] Such volume flow meters are known, for example, as volume flow hoods and are used to measure the volume flow through supply or outlet openings of building ventilation systems. [0003] For this purpose, the measuring funnel with the air inlet is fitted onto the air supply or outlet of the building ventilation system. The volume flow through the air supply opening or the air outlet opening can thus be measured by means of a measuring unit, for example an air flow meter. [0004] It is known to form the measuring funnel from a foldable material in order to fold the measuring funnel into the transport position. In this transport position, the measuring funnel takes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/00
CPCF24F13/08F24F2013/088G01F1/05F24F13/06
Inventor S·布鲁格M·罗姆巴赫
Owner TESTO AG
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