DE29916252U1 - Displacement transducer - Google Patents

Displacement transducer

Info

Publication number
DE29916252U1
DE29916252U1 DE29916252U DE29916252U DE29916252U1 DE 29916252 U1 DE29916252 U1 DE 29916252U1 DE 29916252 U DE29916252 U DE 29916252U DE 29916252 U DE29916252 U DE 29916252U DE 29916252 U1 DE29916252 U1 DE 29916252U1
Authority
DE
Germany
Prior art keywords
displacement transducer
less
housing
elevations
capacitive
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.)
Expired - Lifetime
Application number
DE29916252U
Other languages
German (de)
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.)
RECHNER IND ELEKTRONIK GmbH
Original Assignee
RECHNER IND ELEKTRONIK GmbH
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 RECHNER IND ELEKTRONIK GmbH filed Critical RECHNER IND ELEKTRONIK GmbH
Priority to DE29916252U priority Critical patent/DE29916252U1/en
Publication of DE29916252U1 publication Critical patent/DE29916252U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/265—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/24—Housings ; Casings for instruments
    • G01D11/245—Housings for sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/268—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors mounting arrangements of probes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (1)

Kapazitiver oder induktiver Wegaufnehmer mit einem elektrischen Sensor, dessen aktives Element von einem Gehäuse umgeben ist, dadurch gekennzeichnet, daß die Gehäuseaußenfläche (8, 10) mit einer hydrophoben Mikrostruktur (20) mit Erhebungen (22) versehen ist, deren maximale Höhe kleiner als etwa 0,1 mm und deren mittlerer Abstand kleiner als etwa 0,2 mm ist.Capacitive or inductive displacement transducer with an electrical sensor, the active element of which is surrounded by a housing, characterized in that the housing outer surface ( 8 , 10 ) is provided with a hydrophobic microstructure ( 20 ) with elevations ( 22 ), the maximum height of which is less than approximately 0.1 mm and their average distance is less than about 0.2 mm.
DE29916252U 1999-09-17 1999-09-17 Displacement transducer Expired - Lifetime DE29916252U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29916252U DE29916252U1 (en) 1999-09-17 1999-09-17 Displacement transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29916252U DE29916252U1 (en) 1999-09-17 1999-09-17 Displacement transducer

Publications (1)

Publication Number Publication Date
DE29916252U1 true DE29916252U1 (en) 2000-02-10

Family

ID=8078962

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29916252U Expired - Lifetime DE29916252U1 (en) 1999-09-17 1999-09-17 Displacement transducer

Country Status (1)

Country Link
DE (1) DE29916252U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040180B4 (en) * 2000-08-17 2007-07-26 Vega Grieshaber Kg Level or pressure measuring sensors with dirt-repellent and / or self-cleaning properties
EP3577345A4 (en) * 2017-02-03 2020-11-25 Flow Control LLC. Bilge pump having outside sensing surface with ribs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10040180B4 (en) * 2000-08-17 2007-07-26 Vega Grieshaber Kg Level or pressure measuring sensors with dirt-repellent and / or self-cleaning properties
EP3577345A4 (en) * 2017-02-03 2020-11-25 Flow Control LLC. Bilge pump having outside sensing surface with ribs

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20000316

R150 Term of protection extended to 6 years

Effective date: 20021129

R157 Lapse of ip right after 6 years

Effective date: 20060401