DE2840983A1 - Electrical humidity tester - has glass fibre reinforced printed probe and LED circuit requiring minimal power - Google Patents

Electrical humidity tester - has glass fibre reinforced printed probe and LED circuit requiring minimal power

Info

Publication number
DE2840983A1
DE2840983A1 DE19782840983 DE2840983A DE2840983A1 DE 2840983 A1 DE2840983 A1 DE 2840983A1 DE 19782840983 DE19782840983 DE 19782840983 DE 2840983 A DE2840983 A DE 2840983A DE 2840983 A1 DE2840983 A1 DE 2840983A1
Authority
DE
Germany
Prior art keywords
glass fibre
fibre reinforced
led circuit
humidity tester
minimal power
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.)
Withdrawn
Application number
DE19782840983
Other languages
German (de)
Inventor
Robert Griebel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19782840983 priority Critical patent/DE2840983A1/en
Publication of DE2840983A1 publication Critical patent/DE2840983A1/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/048—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Tests Of Electronic Circuits (AREA)

Abstract

The measuring probe of a one way humidity tester is produced similarly to a printed circuit, and the use of an LED together with a bC 307 transistor, makes an operating switch unnecessary, since the flow of current at rest is negligible. The probe may be enclosed in a glass fibre reinforced epoxy resin and the housing is an epoxy resin moulding. Unlike conventional humidity testers, this works effectively and requires no attention. In the household it can be used not only for checking plants and flowers but also or detecting various sources of damp.

Description

Beschreibung: Description:

Titel Elektrischer Einweg-Feuchtigkeitstester Anwendungsgehiet Die Erfindung betrifft einen Feuchtigkeitstester mit speziell auf den Haushalt abgestimmten Eigenschaften.Title Disposable Electric Moisture Tester Application Contains The The invention relates to a moisture tester with specially tailored to the household Properties.

Zweck Einen Feuchtigkeitstester zu bauen der jederzeit direkt einsatzfähig ist, also der dem II Finger in die Erde stecken II gleichkommt und eindeutig anzeigt in welcher Tiefe Feuchtigkeit vorhanden ist oder mit dem man auch einmal in unzugänglichen Ritzen oder einem Polster nach Feuchtigkeit suchen kann.Purpose To build a moisture tester that can be used immediately at any time is, so that is the II sticking finger in the ground and clearly indicates II at what depth the moisture is present or with which one can sometimes be in inaccessible Cracks or a cushion can look for moisture.

Stand der Technik und Kritik Es ist mir hekannt, daß es bereits elektrische Feuchtigkeitstester oder Feuchtigkeitsmesser gibt, jedoch sind das relativ komplizierte Geräte die auch nicht robust und in der Anwendung nicht einfach genug sind.State of the art and criticism I know that it is already electrical There are moisture testers or moisture meters, but they are relatively complicated Devices that are also not robust and not easy enough to use.

Außerdem unterliegen sie mechanischem Verschleiß an Verschlüssen, Kontakten und Schaltern. Zudem ist mit diesen Teilen die Abdichtung gegen Wasser kaum möglich. They are also subject to mechanical wear on closures, Contacts and switches. In addition, these parts are used to seal against water hardly possible.

Aufgabe Eine Meßeinrichtung zu entwickeln die wartungsfrei funktioniert und die man durch vergießen wasserdicht und robust machen kann.Task To develop a measuring device that works maintenance-free and which can be made waterproof and robust by potting.

Lösung Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Feuchtigkeitstester so stromsparend ausgeführt ist, daß er mit der im Gerät eingebauten Batterie sehr lange auskommt und dadurch ein Batteriewechsel nicht mehr nötig wird.Solution The object is achieved according to the invention in that the moisture tester is designed to be so energy-efficient that it is very efficient with the battery built into the device lasts a long time and therefore a battery change is no longer necessary.

Weitere Ausgestaltung der Erfindung Im übrigen hat die Schaltung des Einweg-Feuchtigkeitstesters einen sn niedrigen Ruhestrom, daß sie keinen Schalter zum abschalten des Gerätes bentigt.Further embodiment of the invention In addition, the circuit has the Disposable humidity testers have a sn low quiescent current that they do not have a switch required to switch off the device.

Außerdem hat das Gerät eine " gedruckte @ Meßspitze ( wie gedruckte Schaltung durch Platinenherstellungsverfahren erreicht.In addition, the device has a "printed probe tip (like printed Circuit achieved by circuit board manufacturing processes.

Erzielhare Vorteile Die Vorteile des Einweg-Feuchtigkeitstesters gegenüber herkömmlichen Fechtigkeitsmessern liegen in der Hauptsache darin, daß er betriebssicherer und wartungsfrei ist.Achievable Advantages The advantages of the disposable moisture tester over conventional fencing knives are mainly in the fact that he is more reliable and is maintenance-free.

Außerdem ist er überall einsetzhar ( durch flexible Meßspitze ), griffbereit ( dadurch, daß Ein-und Ausschalten sich erübrigt ) und wesentlich kleiner und leichter als herkömmliche Geräte.In addition, it can be used anywhere (thanks to the flexible measuring tip), ready to hand (because switching on and off is not necessary) and much smaller and lighter than conventional devices.

Dadurch wird das Gerät für den universellen Gebrauch im Haushalt interessant, denn man kann es nicht nur zum gezielten ßlumengießen verwenden, sondern auch versteckte Nässe aufspüren und Schimmeln und Stocken verhindern.This makes the device interesting for universal use in the household, because you can use it not only for targeted lumen pouring, but also for hidden ones Detect moisture and prevent mold and stagnation.

Ausführungsbeispiel Durch die Verwendung einer Leuchtdiode ( LED) in Verbindung ( Fig. 1 ) mit dem Transistor ( SC-307 ) wird in diesem Fall der geringe Stromverbrauch gewährleistet.Embodiment By using a light emitting diode (LED) in connection (Fig. 1) with the transistor (SC-307) becomes the low one in this case Electricity consumption guaranteed.

Außerdem fließt, durch die " offene " Basis ( Luftwiderstand zwischen Basis und Kollektor ) am OC-307, ein vernachlässigbar niedriger Ruhestrom über die Emitter-@ollektorstrecke, wodurch ein ßetriebsschalter überflüssig wird Die Spitze ist hier aus Glasfaserverstärktem Epoxydharz, das doppelseitig kaschiert ist In addition, through the "open" base (air resistance between Base and collector) on the OC-307, a negligibly low quiescent current across the Emitter @ collector path, which makes an operating switch superfluous. The tip is here made of glass fiber reinforced epoxy resin, which is laminated on both sides

Claims (1)

Patentansprüche: -----------------Oberbegriff: Feuchtigkeitstester mit speziell auf den Haushalt abgestimmten Eigenschaften. Claims: ----------------- General term: moisture tester with properties specially tailored to the household. Bennzeichnender Teil Dadurch gekennzeichnet, daß der Feuchtigkeitstester so str@msparend ausgeführt ist, daß ar mit der im Gerät eingebauten Satterie sehr lange auskommt und dadurch ein Batteriewechsel nicht mehr nötig wird.Named part characterized by the fact that the moisture tester is designed so energy-saving that ar very much with the battery built into the device lasts a long time and therefore a battery change is no longer necessary. Oberbegriff Schaltung nach Anspruch 1 des ersten Unteranspruchs Kennzeichnender Teil des ersten Untsransprochs Dadurch gekennzeichnet, daß ihr Ruhestrom so niedrig ist, daß sie keinen Schalter benötigt.Preamble circuit according to claim 1 of the first subclaim characterizing Part of the first conversation characterized by the fact that their quiescent current is so low is that it doesn't need a switch. Oberbegriff des zweiten Unteranspruchs Meßspitze d25 Feuchtigkeitstesters nach Anspruch 1 Kennzeichnender Teil des zweiten Unteranspruchs Dadurch gekennzeichnet, daß er eine"gedruckte" Meßspitze ( uie Platinenherstellungsverfahren ) hat.Preamble of the second sub-claim measuring tip d25 moisture tester according to claim 1 characterizing part of the second sub-claim characterized in that, that it has a "printed" probe tip (uie circuit board manufacturing process).
DE19782840983 1978-09-21 1978-09-21 Electrical humidity tester - has glass fibre reinforced printed probe and LED circuit requiring minimal power Withdrawn DE2840983A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19782840983 DE2840983A1 (en) 1978-09-21 1978-09-21 Electrical humidity tester - has glass fibre reinforced printed probe and LED circuit requiring minimal power

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782840983 DE2840983A1 (en) 1978-09-21 1978-09-21 Electrical humidity tester - has glass fibre reinforced printed probe and LED circuit requiring minimal power

Publications (1)

Publication Number Publication Date
DE2840983A1 true DE2840983A1 (en) 1980-04-03

Family

ID=6049972

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19782840983 Withdrawn DE2840983A1 (en) 1978-09-21 1978-09-21 Electrical humidity tester - has glass fibre reinforced printed probe and LED circuit requiring minimal power

Country Status (1)

Country Link
DE (1) DE2840983A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991018286A1 (en) * 1990-05-11 1991-11-28 Luis Lopez Rayado Domestic watering indicator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991018286A1 (en) * 1990-05-11 1991-11-28 Luis Lopez Rayado Domestic watering indicator

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee