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Pressure measurement

A pressure, pressure sensor technology, applied in measurement devices, by measuring the rate of increase and decrease of fluids, using liquid/vacuum for liquid tightness measurement, etc., can solve expensive solutions, suction cup vacuum damage, increase cost and complexity and other issues to achieve the effect of reducing cost and complexity

Active Publication Date: 2018-11-09
AVAC VAKUUMTEKNIK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A vacuum source (such as an ejector) connected to multiple suction cups is usually a less expensive solution, but has the disadvantage that if at least one of the suction cups is not in proper contact with the object to be lifted, the vacuum of the other suction cups connected to the same vacuum source will also be destroyed
On the other hand, multiple vacuum sources each connected to one or a group of suction cups maintain vacuum in suction cups that are not connected to the same vacuum source as leaky suction cups, but this is a more expensive solution
Additionally, to measure the vacuum in the chuck, a sensor for each vacuum source is required, further increasing cost and complexity when multiple vacuum sources are used

Method used

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Embodiment Construction

[0023] Embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which certain embodiments are shown. However, other embodiments in many different forms are possible within the scope of this disclosure. Rather, the following embodiments are provided by way of example so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Like symbols refer to like elements throughout the specification.

[0024] Herein an example is given of a pressure source in the form of a vacuum port connected to a vacuum pump in the form of an ejector. However, the invention also relates to other pressure sources, including overpressure sources and other pumps, such as compressors for overpressure sources.

[0025] figure 1 An embodiment of a system 1 is shown comprising a vacuum ejector 2 for providing a pressure source 4 in the form of a vacuum port. A pressure source 3 of pre...

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Abstract

The present disclosure relates to a device for pressure measurement in a system 1. The device comprises a container 8 enclosing a volume, and a pressure sensor 7 arranged to detect a pressure in the enclosed volume. The container is provided with a plurality of openings, each opening being configured for allowing the enclosed volume to be in fluid communication with a respective pressure source 4.

Description

technical field [0001] The present disclosure relates to devices and methods for pressure measurement in systems. Background technique [0002] Ejectors (also called aspirators, Venturi pumps, ejector-jet pumps, eductor-jet pumps, syringes or A thermal compressor) can be used (usually via the Venturi effect) to draw gas out of the compartment to create a vacuum therein. The Venturi effect is the reduction in fluid pressure that occurs when fluid flows through a restricted section (or orifice) of a tube. This reduced pressure is used to pump out the gas. The fluid can be a liquid such as water (water aspirator) or a gas such as steam (steam injector / syringe) or compressed air. [0003] An ejector can be used to create a vacuum for one or more suction cups to lift and transport objects (eg in an industrial environment). The number of suction cups used depends on the size of the objects to be lifted, or on the number of objects to be lifted simultaneously (eg from a conveyo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/34B66C1/02G01M3/26
CPCB66C1/0256B66C1/0268G01M3/3272B66C1/0218G01M3/26G01M3/34
Inventor 拉尔斯·安德森
Owner AVAC VAKUUMTEKNIK