[특허]Water depth measuring device

Water depth measuring device 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01R-027/26
출원번호	US-0609019 (1975-08-29)
발명자 / 주소	Overall, Wilson W. Waldman, Jerry R.
출원인 / 주소	Surface Systems, Inc.
대리인 / 주소	Koenig, Senniger, Powers and Leavitt
인용정보	피인용 횟수 : 46 인용 특허 : 0

초록 ▼

A device for use in determining the depth of water accumulating on the surface of a pathway, such as an airport runway or the like. A block of electrically insulative material is embedded in a pathway with the top surface of the block being substantially flush with the pathway surface and exposed to atmospheric precipitation. A sensor comprising first and second capacitors, each of which has first and second coplanar spaced apart electrodes, is positioned within the block with the electrodes of the first capacitor positioned adjacent to and inclined with respect to the top surface of the block and with the electrodes of the second capacitor being positioned a substantially greater distance from the top surface of the block whereby an accumulation of water on the surface of the block affects the dielectric, capacitance and conductance of the first capacitor without substantially affecting the dielectric, capacitance and conductance of the second. Time-varying out-of-phase electrical signals are applied to the first electrodes of the capacitors as the input to the sensor. An output circuit commonly connected to the second electrodes of the aforesaid capacitors supplies an electrical output signal relative to electrical ground from the sensor. At least one electrical conductor within the block is connected to electrical ground with a portion thereof exposed to the atmosphere at the top surface of the block. Accumulation of water on the surface of the block affects the capacitance and conductance between the output circuit and electrical ground whereby the amplitude of the electrical output signal of the sensor is a function of the depth of water accumulating on the surface of the pathway.

대표청구항 ▼

1. A device for use in determining the depth of water accumulating on the surface of a pathway, such as an airport runway or the like, comprising: a block of electrically insulative material adapted to be embedded in a pathway with the top surface of the block being substantially flush with the pathway surface and exposed to atmospheric precipitation; a sensor comprising first and second capacitors each of which has first and second coplanar spaced apart electrodes, said sensor being positioned within said block with the electrodes of the first cacpacitor positioned adjacent to and inclined with respect to the top surface of the block and the electrodes of the second capacitor being positioned a substantially greater distance from the top surface of the block whereby an accumulation of water on the surface of the block affects the dielectric, capacitance and conductance of the first capacitor without substantially affecting the dielectric, capacitance and conductance of the second; means for applying respective out-of-phase time-varying electrical signals to the first electrodes of the afore-said capacitors as the input to the sensor; output means commonly connected to the second electrodes of the aforesaid capacitors for supplying an electrical output signal relative to electrical ground from the sensor; and at least one electrical conductor within the block adapted to be connected to electrical ground with one portion thereof exposed to atmospheric precipitation at the top surface of the block whereby accumulation of water on the surface thereof affects the capacitance and conductance between the output means and electrical ground whereby the amplitude of the electrical output signal of the sensor is a function of the depth of water accumulating on the surface of the pathway. 2. A device as set forth in claim 1 wherein the sensor is so inclined with respect to the top surface of the block that the first electrode of the first capacitor is nearer to the top surface of the block than the second electrode thereof, and the electrodes of the second capacitor are positioned parallel to and substantially in registry with said electrodes of the first capacitor. 3. A device as set forth in claim 2 wherein the electrodes of the first and second capacitors are respectively interdigitated. 4. A device as set forth in claim 3 wherein the electrodes of the first capacitor are positioned on one surface of an electrically insulative substrate and the electrodes of the second capacitor are positioned on the opposite surface thereof. 5. A device as set forth in claim 1 wherein the signal supplying means and the output means include a plurality of shielded electrical conductors, the shielding of said conductors being connected to electrical ground. 6. A device as set forth in claim 1 further including a plurality of electrical conductors within the block each of which is adapted to be connected to electrical ground and have one portion thereof exposed to the atmosphere at the top surface of the block, said exposed portions being laterally spaced from and positioned about the sensor whereby the capacitance and conductance between the output means and electrical ground is so affected when water accumulates on the surface of the block that the amplitude of the electrical output signal varies monotonically with water depth over a preselected range thereof. 7. Apparatus as set forth in claim 6 wherein a portion of the plurality of electrical cnductors are positioned between the first and second electrodes of the first and second capacitors and insulated therefrom. 8. A device as set forth in claim 1 further including means for convertng the electrical ouput signal from the sensor to a d.c. voltage the amplitude of which is representative of the depth of water accumulating on the surface of the pathway. 9. A device as set forth in claim 8 further including means responsive to the d.c. voltage to provide a visual indication of the depth of water accumulating on the surface of the pathway, the water depth indicated being a function of the amplitude of said voltage. 10. A device as set forth in claim 9 wherein the water depth indicator includes at least one signal lamp adapted to be illuminated in response to the amplitude of the voltage exceeding a predetermined level thereby to represent a predetermined water depth. 11. A device as set forth in claim 9 further including a conductivity sensor attached to the block and comprising first and second spaced apart electrodes adapted to be exposed to atmospheric precipitation, one of which electrodes is adapted to be connected to electrical ground. 12. A device as set forth in claim 11 further including means responsive to the conductance of the conductivity sensor when the water accumulating on the surface of the pathway contains contaminants, the presence of which adversely effects the accuracy with which water depth can be sensed, to preclude the water depth indicator from responding to the d.c. voltage thereby to prevent erroneous water depth indications. 13. A device as set forth in claim 12 wherein the means for precluding erroneous water depth indications includes means for producing a voltage the amplitude of which is a function of the conductance of the conductivity sensor, means for comparing the aforesaid voltage amplitude with that of a reference voltage representative of the conductance of the conductivity sensor when contaminant-containing water is present on the conductivity sensor, and means responsive to the comparison means for disabling the visual indication means when the water on the surface of the pathway contains contaminants. 14. A device as set forth in claim 13 which further includes means for applying an a.c. voltage to the ungrounded electrode of the conductivity sensor, and means for rectifying the resulting a.c. voltage across the conductivity sensor to produce a d.c. voltage the amplitude of which is a function of the conductance of the conductivity sensor. 15. A device as set forth in claim 14 wherein the means for disabling the visual indication means comprises a semiconductor device.

이 특허를 인용한 특허 (46)

Briggs Donald E. (St. Louis County MO), Apparatus and method for detecting wet and icy conditions on the surface of a pathway.
상세보기
Preikschat Fritz K. (16020 Lake Hills Blvd. Bellevue WA 98008), Apparatus and method for providing separate conductivity, dielectric coefficient, and moisture measurements of particula.
상세보기
Whitener Miles B. (St. Louis MO), Apparatus and methods for detecting wet and icy conditions.
상세보기
Rogers John O. (St. Louis County MO) Gregory Robert O. (St. Louis County MO), Apparatus for detecting wet and icy surface conditions.
상세보기
Koontz Harry S. (Penn Hills Township ; Allegheny County PA) Wilson James F. (Worthington PA), Capacitive coupled moisture sensor.
상세보기
Waldron Wesley K. (Scotia NY), Capacitive touch-pad devices with dynamic bias.
상세보기
Chase Lee, Compact high resolution under wire water weight sensor array.
상세보기
Zhou, Yonghong, Device and method for detecting characteristics of a material occupying a volume with capactive sensing of mirrored plates.
상세보기
Gothe Diethard (North Eltham AUX) Nuske Jeffrey J. (Diamond Creek AUX) Friedrich Jrgen (Ringwood AUX), Device for the capacitive level height measurement of liquids or solids.
상세보기
Kowalski Jacek (Trets FRX), Device to detect the depassivation of an integrated circuit.
상세보기
Raymond Leonard S. (Tucson AZ), Dielectric measuring systems.
상세보기
Walsh John E. (Box 264 Bradford VT 05033), Electrical moisture sensor.
상세보기
Chase Lee ; Goss John ; Walford Graham V., Electromagnetic field perturbation sensor and methods for measuring water content in sheetmaking systems.
상세보기
Heaven E. Michael,CAX ; Hagart-Alexander Claud,CAX ; Chase Lee ; Goss John D. ; Watson David,CAX, Fast CD and MD control in a sheetmaking machine.
상세보기
Bossen David A. ; Heaven E. Michael,CAX ; Goss John D., Fast basis weight control for papermaking machine.
상세보기
Jones Thaddeus M., Floor condition sensor.
상세보기
Chase Lee ; Goss John D. ; Walford Graham V. ; Preston John, High resolution system and method for measurement of traveling web.
상세보기
Shearer, Jon Douglas; Periyathamby, Sabeshan Sean, Liquid level sensing system.
상세보기
Periyathamby, Sabeshan Sean; Shearer, Jon; Lei, Martin; Harr, John A.; Mackulin, Bryan J., Liquid level sensing systems.
상세보기
Berberich Reinhold,DEX, Method for determining the moisture impinging on a resistive rain sensor.
상세보기
Hu Hung-Tzaw ; Tu Francis, Method for monitoring and controlling water content in paper stock in a paper making machine.
상세보기
Kim, Daehee; Song, Joonkeol; Kim, Sunghwan, Method of controlling air conditioner based on level of condensed water.
상세보기
Brandelik Alexander,DEX ; Hubner Christof,DEX, Method of determining the volumetric proportion of liquid water and the density of snow and a device for carrying out the method.
상세보기
Schmitt, Alvin P., Moisture sensing devices.
상세보기
Wieczorek, Mark T.; Dringenburg, Dean H.; Kallurwar, Rahul B., Multi-conductor water in fuel sensor for fill rate detection.
상세보기
Wieczorek, Mark T.; Dringenburg, Dean H.; Kallurwar, Rahul B., Multi-conductor water in fuel sensor for fill rate detection.
상세보기
Hagart-Alexander Claud,CAX ; Hu Hung-Tzaw ; Watson David,CAX, Paper stock shear and formation control.
상세보기
Hagart-Alexander Claud,CAX ; Hu Hung-Tzaw ; Watson David,CAX ; Preston John, Paper stock shear and formation control.
상세보기
Watson John David,CAX ; Hu Hung-Tzaw ; Hagart-Alexander Claud,CAX ; Chase Lee ; Goss John D., Paper stock zeta potential measurement and control.
상세보기
Oladeinde, Dada O., Radiator cap having readout capabilities.
상세보기
Leonhardt, Patrick A., Roadway freezing point monitoring system and method.
상세보기
Leonhardt,Patrick A., Roadway freezing point monitoring system and method.
상세보기
Yamanoue Kouichi (Okazaki JPX) Kitagawa Junji (Okazaki JPX) Akita Shigeyuki (Okazaki JPX) Kuno Akira (Oobu JPX), Sensing apparatus.
상세보기
Hu Hung-Tzaw ; Chase Lee ; Goss John ; Preston John, System and method for sheet measurement and control in papermaking machine.
상세보기
Hu Hung-Tzaw ; Chase Lee ; Goss John ; Preston John, System and method for sheet measurement and control in papermaking machine.
상세보기
[ What is claimed is:] [2.] A method for intraventricular revascularization and perfusion of a myocardium ; comprising the steps of:(a) introducing at least one pump into a ventricle of a heart ; sai, System and method for sheet measurement and control in papermaking machine.
상세보기
Chase Lee, System for producing paper product including a compact high-resolution under wire water weight sensor array.
상세보기
Deram, Brian; Cinquino, Nick; Klimah, Paul, Thermoconductimetric analyzer for soldering process improvement.
상세보기
Weinstein Leonard M., Thickness measurement device for ice, or ice mixed with water or other liquid.
상세보기
Allen James D. (Rochester NY) McVay David M. (Rochester NY), Toner concentration monitor.
상세보기
Whitener Miles B. (St. Louis County MO), Ultrasonic depth measurement apparatus and methods.
상세보기
Hu Hung-Tzaw ; Hagart-Alexander Claud,CAX ; Chase Lee ; Goss John D. ; Watson David,CAX, Underwire water weight turbulence sensor.
상세보기
John D. Goss ; Lee Chase, Water weight sensor array imbedded in a sheetmaking machine roll.
상세보기
Preston John ; Chase Lee ; Hu Hung-Tzaw ; Goss John D., Weight measurement and measurement standardization sensor.
상세보기
Watson John David,CAX ; Hagart-Alexander Claud,CAX ; Goss John D. ; Preston John G. ; Hu Hung-Tzaw ; Dudas Laslo, Wet end control for papermaking machine.
상세보기
Medzius Joseph (Mt. Lebanon PA), Windshield moisture sensor.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Water depth measuring device 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (46)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

Water depth measuring device 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (46)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트