Unlock instant, AI-driven research and patent intelligence for your innovation.

Distance measuring device

A measuring device and distance technology, applied in the field of measuring devices, can solve problems such as poor resolution and small signal swing, and achieve the effect of improving resolution and large signal swing

Inactive Publication Date: 2012-08-22
FESTO AG & CO KG
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also disadvantageous are the relatively small signal swing and poor resolution

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Distance measuring device
  • Distance measuring device
  • Distance measuring device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] figure 1 The distance measuring device shown in is used to measure the distance a between a pressure nozzle (Staudüse) 10 and an object 11. Through the supply pressure connection 12 the supply pressure P V It is supplied to the pressure nozzle 10 via the injector 13 . Such injectors 13 —also referred to as injection pumps—are described in detail in the prior art mentioned at the outset. It has a lateral suction connection 14 through which air is sucked in when air or another gaseous medium flows through the injector 13 . This creates a low pressure P at the suction connection 14 E . A differential pressure sensor 15 is connected both to the supply pressure connection 12 and to the suction connection 14, thereby obtaining a difference equal to P V -P E The differential pressure ΔP. This differential pressure ΔP is supplied as an electrical signal to the evaluation device 16 , where it is converted into a distance value a and, if necessary, stored, printed or displ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A measuring device is disclosed, for recording the distance (a) between a pressurised pilot nozzle (10) and an object (11) by means of an ejector (13) arranged between the above and a supply pressure connector (12), provided with an analytical device (16) for recording the distance (a) depending on the difference signal (deltaP) between the pressure value recorded at the suction connector (14) of the ejector (13) and a value dependent on the supply pressure (Pv). A measured signal with increased amplitude and improved resolution in comparison to the conventional pressure balance is achieved.

Description

technical field [0001] The invention relates to a measuring device for measuring the distance between a pressure nozzle supplied with pressure and an object by means of an injector arranged between the pressure nozzle and a supply pressure connection, wherein at the suction connection of the injector is obtained The pressure value of is used to find the distance. Background technique [0002] Such a device with an injector is known, for example, from DE 20004783 U, in which the pressure value obtained at the suction connection of the injector is used directly as the evaluation signal. A disadvantage is the position of the injector characteristic curve, which lies between the supply pressure and the maximum low pressure. [0003] A similar distance measuring device is also known from DE-A-2921989, in which the ratio between the pressure value at the injector suction connection and the supply pressure value is used to determine the distance. Although this results in a measur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01B13/12
CPCG01B13/12G01B7/023G01N21/01G01N2021/0162
Inventor P·赫特G·科勒
Owner FESTO AG & CO KG