DE237635C - - Google Patents
Info
- Publication number
- DE237635C DE237635C DENDAT237635D DE237635DA DE237635C DE 237635 C DE237635 C DE 237635C DE NDAT237635 D DENDAT237635 D DE NDAT237635D DE 237635D A DE237635D A DE 237635DA DE 237635 C DE237635 C DE 237635C
- Authority
- DE
- Germany
- Prior art keywords
- tip
- telephone
- calibration marks
- buzzer
- measuring
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 210000003284 Horns Anatomy 0.000 description 1
- 241001422033 Thestylus Species 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F17/00—Methods or apparatus for determining the capacity of containers or cavities, or the volume of solid bodies
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Herstellung der Eichstriche an Glasgefäßen erfolgt gewöhnlich in der Weise, daß der in die Wachsschicht schneidende Stichel mit einem Diopter verbunden ist, mit welchem auf das Niveau der Flüssigkeit eingestellt wird. In derselben Weise werden die später geätzten Eichstriche kontrolliert oder beim Gebrauch abgelesen.The production of the calibration marks on glass vessels is usually carried out in such a way that the graver cutting into the wax layer is connected to a diopter with which is adjusted to the level of the liquid. In the same way they will be later etched calibration marks checked or read during use.
Die vorliegende Erfindung ersetzt diesesThe present invention replaces this
ίο optische Verfahren, welches die Augen anstrengt, durch ein elektrisches.ίο optical procedures that strain the eyes, by an electric.
In Fig. ι stellt ν ein Stativ dar, auf welches das zu eichende Gefäß g gestellt wird. Auf der Säule des Stativs ist ein Bügel b zweckmäßig mit Hilfe einer Feinstellung verschiebbar, der einerseits einen Stichel oder eine Ablesespitze s, andererseits in derselben horizontalen Ebene eine Kontaktspitze d trägt. Letztere ist über eine Stromquelle e und ein Anzeigeinstrument α (Galvanometer o. dgl.) mit einer Elektrode t verbunden. Zur Einstellung auf das Flüssigkeitsniveau wird der Bügel gesenkt, und in dem Augenblicke, in welchem die Spitze d das Flüssigkeitsniveau berührt, wird dies durch den elektrischen Strom angezeigt, und es steht dann auch der Stichel an der richtigen Stelle.In Fig. Ι ν represents a stand on which the vessel g to be calibrated is placed. On the column of the stand, a bracket b is expediently displaceable with the aid of a fine adjustment, which on the one hand carries a graver or a reading tip s and on the other hand a contact tip d in the same horizontal plane. The latter is connected to an electrode t via a power source e and a display instrument α (galvanometer or the like). To adjust to the liquid level, the bracket is lowered, and the moment the tip d touches the liquid level, this is indicated by the electric current, and the stylus is then also in the right place.
Dieses Verfahren ist für Quecksilber, angesäuertes Wasser oder selbst Leitungswasser verwendbar, wenn die elektrische Anzeige7' vorrichtung einigermaßen empfindlich ist. Bei Verwendung von destilliertem Wasser empfiehlt sich jedoch die Anordnung nach Fig. 2. Der Strom wird dabei von der Sekundärwickelung eines Summers i geliefert, so daß er verhältnismäßig hohe Spannung besitzt, während er durch eine zweite Induktionsspule p für das Telephon t wieder auf niedrige Spannung gebracht wird. Das Telephon wird dabei zweckmäßig an der Wand angebracht und mit einem Schalltrichter versehen.This method can be used for mercury, acidified water or even tap water if the electrical display 7 'device is reasonably sensitive. When using distilled water, however, the arrangement according to FIG. 2 is recommended. The current is supplied by the secondary winding of a buzzer i , so that it has a relatively high voltage, while it is reduced to a low voltage by a second induction coil p for the telephone t is brought. The telephone is expediently attached to the wall and provided with a horn.
Die Kontaktspitze d besteht am besten aus einem in ein Glasrohr eingeschmolzenen Platindraht. Zweckmäßig ist auch die Elektrode t am Bügel b isoliert befestigt, jedoch von der Spitze d so weit entfernt, daß durch die Kapillarität kein Fehler entstehen kann.The contact tip d is best made of a platinum wire fused into a glass tube. Expediently, the electrode t is also attached to the bracket b in an insulated manner, but at a sufficient distance from the tip d that no error can arise due to the capillarity.
Claims (3)
Publications (1)
Publication Number | Publication Date |
---|---|
DE237635C true DE237635C (en) |
Family
ID=497220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT237635D Active DE237635C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE237635C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2757534A (en) * | 1953-09-15 | 1956-08-07 | Cabot Godfrey L Inc | Measurement of volumes |
US2763935A (en) * | 1954-06-11 | 1956-09-25 | Purdne Res Foundation | Determining depth of layers of fat and of muscle on an animal body |
-
0
- DE DENDAT237635D patent/DE237635C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2757534A (en) * | 1953-09-15 | 1956-08-07 | Cabot Godfrey L Inc | Measurement of volumes |
US2763935A (en) * | 1954-06-11 | 1956-09-25 | Purdne Res Foundation | Determining depth of layers of fat and of muscle on an animal body |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2741060C2 (en) | Method and device for detecting the change in state of a liquid | |
DE102014202839A1 (en) | hardness tester | |
DE237635C (en) | ||
EP0459441A3 (en) | Method and system for inspection of electroconductive film using eddy current and process and system for production of optical fibers using method and system | |
DE2502653C2 (en) | Circuit arrangement to compensate for the pitch error occurring during profile measurements | |
DE3136248A1 (en) | METHOD FOR CHECKING THE CONDITION OF POLAROGRAPHIC MEASURING ELECTRODES AND DEVICE FOR CARRYING OUT THE METHOD | |
DE1473242B2 (en) | Method and device for determining the melting point | |
DE2739975A1 (en) | Hose levelling device with electrical level indication - uses pressure detector arrangement for easy operation and error elimination (OE 15.5.77) | |
DE4439578C1 (en) | Coordinate measuring machine sensor head | |
DE19860487A1 (en) | Method and device for spatially measuring an inhomogeneity on a surface of a nuclear reactor component and application of the method for measuring an electrically practically non-conductive layer | |
DE3034390A1 (en) | PIEZOELECTRIC SWIVEL ELEMENT | |
DE435547C (en) | Device for measuring small pressures or small pressure differences | |
DE269480C (en) | ||
DE202013007376U1 (en) | Measuring device for immersion tests | |
DE559952C (en) | Tonometer | |
DE952943C (en) | Method for measuring distances by means of sound waves, in particular ultrasonic waves, and devices for practicing the method | |
DE1205305B (en) | Device for the continuous measurement of the fill level of a container containing a liquid by means of sound waves | |
DE4313418A1 (en) | Method and device for the digital determination and remote interrogation of filling levels and levels in liquids or media of limited high viscosity, using discrete sensor positions | |
DE524938C (en) | Strain gauge | |
CN109682502B (en) | Device for quantitatively evaluating residual stress change of conductive hairspring | |
EP0238522A1 (en) | Applanation tonometer | |
DE2205419B2 (en) | Measuring probe for liquid levels - gives continuous automatic measurement and indication of liquid level | |
DE1943214A1 (en) | Density measurement of liquids | |
Mayhew | On the time of reflex winking | |
Spaeth | A device for recording the physiological responses of single melanophores |