CN101509794A - Capacitance probe of vortex flow transducer - Google Patents

Capacitance probe of vortex flow transducer Download PDF

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Publication number
CN101509794A
CN101509794A CNA2009100303639A CN200910030363A CN101509794A CN 101509794 A CN101509794 A CN 101509794A CN A2009100303639 A CNA2009100303639 A CN A2009100303639A CN 200910030363 A CN200910030363 A CN 200910030363A CN 101509794 A CN101509794 A CN 101509794A
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CN
China
Prior art keywords
vortex flow
capacitance probe
electrode
moving electrode
flow sensors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2009100303639A
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Chinese (zh)
Inventor
王开悦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Huahai M & C Technology Ltd
Original Assignee
Jiangsu Huahai M & C Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Huahai M & C Technology Ltd filed Critical Jiangsu Huahai M & C Technology Ltd
Priority to CNA2009100303639A priority Critical patent/CN101509794A/en
Publication of CN101509794A publication Critical patent/CN101509794A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a capacitive probe of a vortex flow transducer. The capacitive probe includes a moving electrode (2), a fixed electrode (3), a pedestal ring (1) and a pressure plate (5). The moving electrode (2) with a cavity (8) is installed at the bottom of the pedestal ring (1); the pressure plate (5) is installed on the pedestal ring (1); the fixed electrode (3) installed in the cavity of the moving electrode (2) is fixed on the pressure plate (5) through a spacer (4); and the tail end of the moving electrode (2) is welded with an end enclosure. The capacitive probe has simple structure, low cost, convenient use, stable operation and wide suitability.

Description

The capacitance probe of vortex flow sensors
Technical field
The present invention relates to a kind of probe of the sensor that is used for liquid in the measuring channel, gas medium flow, be specifically related to a kind of capacitance probe of vortex flow sensors.
Background technology
Since vortex flow sensors comes out, because its range ability is wide, measurement lower limit is low, movable member simple in structure, no, do not have that machinery weares and teares, the pressure loss is little, production cost is low and more and more paid close attention to by people, but vortex flow sensors in the past adopts the piezoelectricity conversion regime more, because the technical indicator of piezoelectric element influence, make the temperature of measured medium be no more than 350 ℃, and anti-seismic performance is very poor; Existing capacitance probe all is that differential mode is worked, and fixed electrode all is to use stupalith and enclosure material stainless steel difference too big, causes shock resistance undesirable, and the manufacturing process complexity, and cost is very high, never popularization and application.
Summary of the invention
The objective of the invention is to: a kind of capacitance probe of the vortex flow sensors that is used for liquid in the measuring channel, gas medium flow is provided, simple in structure, with low cost, easy to use, stable operation, wide adaptability.
Above-mentioned purpose is to realize by following technical scheme: this capacitance probe comprises moving electrode, fixed electrode, seat ring and pressing plate, moving electrode at the bottom of seat ring mounting strap cavity, the top installation pressing plate of seat ring, be installed in fixed electrode in the moving electrode cavity by spacers on pressing plate, the tail end of moving electrode welding end socket.
In the capacitance probe of vortex flow sensors of the present invention, the outlet of fixed electrode is installed in the sheath.
In the capacitance probe of vortex flow sensors of the present invention, the fixed electrode of the capacitance probe of described vortex flow sensors and the gap between the moving electrode are 0.05~0.1mm.
This technical scheme has following beneficial effect:
1, this probe shock resistance is good, highly sensitive, and is steady in a long-term reliable, can measure 500 ℃ high temperature fluid.
2, do not have the rapid wear material, simple in structure, cost is low, and application prospect is good.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, seat ring, 2, moving electrode, 3, fixed electrode, 4, pad, 5 pressing plates, 6, sheath, 7, trip bolt, 8 cavitys
Embodiment
As shown in Figure 1, this capacitance probe comprises moving electrode 2, fixed electrode 3, seat ring 1 and pressing plate 5, moving electrode 2 at the bottom of seat ring 1 mounting strap cavity 8, the top of seat ring 1 installed pressing plate 5 by trip bolt 7, the fixed electrode 3 that is installed in moving electrode 2 cavitys 8 is fixed on the pressing plate 5 by pad 4, the tail end of moving electrode 2 welding end socket.
In the capacitance probe of vortex flow sensors of the present invention, the outlet of fixed electrode 3 is installed in the sheath 6.
In the capacitance probe of vortex flow sensors of the present invention, the fixed electrode 3 and the gap between the moving electrode 2 of the capacitance probe of described vortex flow sensors are 0.05~0.1mm.

Claims (3)

1. the capacitance probe of vortex flow sensors, this capacitance probe comprises moving electrode (2), fixed electrode (3), seat ring (1) and pressing plate (5), moving electrode (2) at the bottom of seat ring (1) mounting strap cavity (8), the top installation pressing plate (5) of seat ring (1), the fixed electrode (3) that is installed in moving electrode (2) cavity (8) is fixed on the pressing plate (5) by pad (4), the tail end of moving electrode (2) welding end socket.
2. the capacitance probe of vortex flow sensors according to claim 1, it is characterized in that: the outlet of fixed electrode (3) is installed in the sheath (6).
3. the capacitance probe of vortex flow sensors according to claim 1, it is characterized in that: the gap between fixed electrode of the capacitance probe of described vortex flow sensors (3) and the moving electrode (2) is 0.05~0.1mm.
CNA2009100303639A 2009-03-20 2009-03-20 Capacitance probe of vortex flow transducer Pending CN101509794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2009100303639A CN101509794A (en) 2009-03-20 2009-03-20 Capacitance probe of vortex flow transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2009100303639A CN101509794A (en) 2009-03-20 2009-03-20 Capacitance probe of vortex flow transducer

Publications (1)

Publication Number Publication Date
CN101509794A true CN101509794A (en) 2009-08-19

Family

ID=41002264

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2009100303639A Pending CN101509794A (en) 2009-03-20 2009-03-20 Capacitance probe of vortex flow transducer

Country Status (1)

Country Link
CN (1) CN101509794A (en)

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Open date: 20090819