• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Improved humidity sensor consisting of a capacitive humidity sensor, a temperature sensor, a frequency division multiplexer of the electrical signals of the humidity and temperature sensors and a microcomputer that digitizes the said electrical signals of the humidity sensors and temperature by an electrical connection compatible with rs485, whose communication protocol is compatible with modbus, and a heat generating source controlled by the aforementioned microcomputer, all the above components together with their corresponding electrical and data wiring are arranged inside of a hollow cylinder of plastic material, said cylinder has in one of its walls a through hole that communicates the inside of said cylinder with the external environment, said orifice is closed by a waterproof membrane and permeable to water vapor of a mix of cellulose, plastic and stainless steel. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2608901A1
    申请号:ES201630987
    申请日:2016-07-20
    公开日:2017-04-17
    发明作者:Ricardo FERNÁNDEZ CUEVAS；José HIDALGO CENALMOR；Diego JIMÉNEZ AMO；Roberto GÓMEZ HIDALGO
    申请人:Auscultacion Y Taller De Ingenieria S A；Auscultacion Y Taller De Ingenieria Sa；
    IPC主号:
    专利说明:

    Improved humidity sensor 5 Object of the invention
    The object of the present invention is a novel environmental humidity sensor capable of operating with a pressure of 80 m of water column, to withstand in optimum conditions a humidity of 100%, that the distance between the sensor and the unit from
    10 reading of the signals it emits is greater than 100 m. Background of the invention
    One of the types of humidity sensors is capacitive sensors whose operation15 is based on the change in capacity that a condenser undergoes in the presence of moisture.
    Among the disadvantages of the existing capacitive humidity sensors on the market, the following can be mentioned: their prolonged exposure to an environment of humidity greater than 95% destroys them or seriously damages them, they usually do not support their
    20 immersion in water, so they cannot be used in civil engineering works such as dams, embankments or biological filters, and the distance between the sensor and its corresponding reading unit is small due to the characteristics of the digitized signals they generate .
    The present invention recommends a capacitive humidity sensor that solves the above inconveniences in a simple and economical way. Description of the invention
    The improved humidity sensor object of the present invention consists of a capacitive humidity sensor, a temperature sensor, a frequency division multiplexer of the electrical signals coming from the humidity and temperature sensors and a microcomputer that digitizes the signals electrical sources from the aforementioned humidity and temperature sensors via an electrical connection compatible with RS485 and
    35 whose communications protocol is compatible with Modbus, and a source generating


    heat controlled by said microcomputer. All the above components, together with their corresponding electrical and data cabling, are arranged inside a hollow cylinder of plastic material. Said cylinder has in one of its walls a through hole that communicates the interior of said cylinder with the external means. Saying
    5 hole is closed by a waterproof and water vapor permeable membrane made of a mixture of cellulose, plastic and stainless steel. Brief description of the figures
    10 Figure 1: shows a perspective view of the hollow cylinder. Preferred embodiment
    A preferred embodiment of the improved humidity sensor, which is the object of the
    The present description consists of a capacitive humidity sensor; a temperature sensor; a frequency division multiplexer of the electrical signals from the humidity and temperature sensors in a single wire and therefore can measure with only three wires and at a distance greater than 100 m between the sensor and its corresponding reading unit ; and a microcomputer that digitizes said signals
    20 electrical from the aforementioned humidity and temperature sensors by an electrical connection compatible with RS485, which can be interrogated from a distance greater than one kilometer, and whose communications protocol is compatible with Modbus, in the case of using the Digitized signals are needed four output wires, both power and two RS485, these signals are compatible with the signals
    25 analogs generated by the multiplexer, therefore requiring the use of five wires and a heat generating source controlled by said microcomputer.
    The components described in the previous paragraph, together with their corresponding electrical and data wiring, are arranged inside a hollow cylinder (1) of plastic material, said cylinder has in one of its walls a through hole that communicates the inside said cylinder with the outside means, said hole (2) is closed by a water-impermeable and water-permeable membrane (3) made of a mixture of cellulose, plastic and stainless steel, whereby the humidity sensor perfected can work submerged in water and subjected to a pressure of up to 80 meters of


    water column, and is able to continue functioning after being subjected to 100% humidity environments for long periods of time.

    权利要求:
    Claims (1)
    [1]
    1. Improved humidity sensor characterized in that it consists of a capacitive humidity sensor, a temperature sensor, a frequency division multiplexer 5 of the electrical signals coming from the humidity and temperature sensors and a microcomputer that digitizes said signals electrical sources from the aforementioned humidity and temperature sensors by an electrical connection compatible with RS485 and whose communications protocol is compatible with Modbus, and a heat generating source controlled by said microcomputer, all the above components together
    10 with its corresponding electrical and data wiring are arranged inside a hollow cylinder of plastic material, said cylinder has in one of its walls a through hole that communicates the interior of said cylinder with the external means, said hole is closed by a water impermeable and water vapor permeable membrane made of a mixture of cellulose, plastic and stainless steel.

    Figure 1
    类似技术:
    公开号 | 公开日 | 专利标题
    ES2099612T3|1997-05-16|INDOOR CLIMATE CONTROLLER.
    JP6194301B2|2017-09-06|Extendable wireless soil measuring device
    DE60116003D1|2006-01-26|Determination of the dehydration state by measuring bioelectrical impedance
    DE60100053T2|2003-07-31|Sensor for measuring the play by means of multi-stage wear
    AT132722T|1996-01-15|ULTRASONIC SENSING BY MEANS OF THE EYE-TUBE PROBE
    CY1107947T1|2013-09-04|LIQUID PRESSURE SENSOR BOX
    ECSP045359A|2005-01-03|ISOXAZOLINAS 5 METILOXIMETIL REPLACED BY 3-HETEROARILO USED WITH HERBICIDES
    DE60045056D1|2010-11-18|Device for gas concentration measurement with error compensation of the output signal
    ES2608901A1|2017-04-17|Moisture sensor perfected |
    IT7848826D0|1978-04-10|MEASUREMENT TRANSDUCER FOR DETERMINING THE LIQUID LEVEL BY CAPACITIVE WAY
    IT1132779B|1986-07-02|SENSOR FOR MEASURING LIQUID LEAKS
    KR101434337B1|2014-08-29|Apparatus for measuring water level
    AT341810B|1978-02-27|PROBE FOR DETERMINING ORGANIC LIQUIDS
    ES2036822T3|1993-06-01|DEVICE FOR MEASURING OPTICAL FIBER, GIOMETER AND CENTRAL NAVIGATION AND STABILIZATION.
    RU2180746C1|2002-03-20|Moisture meter measuring moisture content in wood
    KR200408229Y1|2006-02-07|soil humidity observation device
    AT318396T|2006-03-15|ARRANGEMENT FOR MOUNTING A HOUSING CONTAINING A MEASUREMENT, CONTROL OR CONTROL, AT THE HOUSING OF A WATER HEATER
    KR102121968B1|2020-06-11|Soil moisture sensor that could measure moisture according to depth
    ES2028453T3|1992-07-01|MEASURING PROBE USABLE FOR THE ESTABLISHMENT OF THE TOPOGRAPHIC LAYOUT OF A TUBE NOT FREELY ACCESSIBLE.
    CN207816903U|2018-09-04|A kind of degree of splitting monitoring device in dam safety crack
    ES2171319T3|2002-09-01|WATER SWITCH.
    ES2739186T3|2020-01-29|Device for measuring the moisture of the pulp material located on a sieve belt
    CN206440824U|2017-08-25|A kind of laser range finder
    ES2592960B1|2017-11-20|INDICATOR OF THE WATER STATE OF THE LAND AND METHOD OF MEASUREMENT OF THE WATER STATE OF THE LAND
    SE532198C2|2009-11-10|moisture meter
    同族专利:
    公开号 | 公开日
    ES2608901B1|2018-01-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5816704A|1996-06-04|1998-10-06|Decagon Devices, Inc.|Water activity and dew point temperature measuring apparatus and method|
    WO2000060558A1|1999-04-06|2000-10-12|Thornton Associates, Inc.|Multiplexing sensor signals|
    US20080105035A1|2006-11-07|2008-05-08|Urs Rothacher|Device for determining soil moisture content|
    法律状态:
    2018-01-26| FG2A| Definitive protection|Ref document number: 2608901 Country of ref document: ES Kind code of ref document: B1 Effective date: 20180126 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201630987A|ES2608901B1|2016-07-20|2016-07-20|Improved humidity sensor|ES201630987A| ES2608901B1|2016-07-20|2016-07-20|Improved humidity sensor|
    [返回顶部]