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Method of providing reference pressures

A technology of reference pressure and pressure, applied in the direction of measuring fluid pressure, measuring device, instrument, etc., can solve the problem of time-consuming calibration operation, and achieve the effect of avoiding the source of error

Inactive Publication Date: 2015-02-11
WLKA ALEXANDER WIEGAND SE & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Calibration operations are also time-consuming when, for example, the division of the measuring range and the calculation of the weight subdivision involve iterative processes

Method used

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  • Method of providing reference pressures
  • Method of providing reference pressures

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Experimental program
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Embodiment Construction

[0044] figure 1 A configuration comprising three pressure compensators labeled 1, 2, 3 is explained as an exemplary embodiment of the invention. Reference numeral 4 designates a mobile data processing device, which is preferably a so-called tablet computer including a touch-sensitive screen. The data processing means run an application called APP, which facilitates the provision of the reference pressure according to the claimed method. On the screen 41, a menu for selecting the number of the pressure compensator to be used is displayed. When the user has made his / her selection, the tablet connects to the Internet. Typically, a wireless local area network (WLAN) connection is established to a router (not shown), which in turn can connect to the FTP server 5 . Through this connection, the set of reference data assigned to the selected pressure compensator is automatically downloaded and stored in the tablet for at least the calibration function to be performed.

[0045] Fur...

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Abstract

A method of generating reference pressures by a pressure generator, which generates a reference pressure according to a mass applied to an end face of a piston using a mobile data processor including the steps of: selecting the standard instrument out of a plurality of standard instruments which are measured as regards characteristic properties and the characteristic properties of which are stored in the form of reference data at a central storage location; connecting the mobile data processor to the central storage location and automatically downloading the reference data of the selected standard instrument and storing the same in the mobile data processor; and for processing the reference data, each applied mass and the local environmental data in the measuring environment into the pressure values assigned to the masses applied in each case as the reference pressures of the standard instrument.

Description

technical field [0001] The present invention relates to a method of generating a reference pressure. The reference pressure is used to calibrate the manometer or pressure sensor. Background technique [0002] For high-precision calibration, it is fundamental to provide an accurate reference pressure, that is to say the reference pressure must be known exactly in order to obtain a reasonable relationship between the display of the instrument to be calibrated and the pressure actually prevailing in the measuring instrument. need. [0003] The device used to generate the reference pressure, also known as the standard device, is a pressure compensator. Since weight and dimensions can be determined with great accuracy, the pressure sensor utilizes a piston movably and hermetically housed in a vertical cylinder, the end face of which is loaded with a weight corresponding to the applied weight in the gas of the cylinder Or produce a very accurately determinable pressure in a flu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L27/00
CPCG01L27/002G01L19/12G01L19/02G01L27/005
Inventor 罗伯特·海因里希克里斯蒂安·埃尔伯特克里斯蒂安·埃伯特
Owner WLKA ALEXANDER WIEGAND SE & CO KG