DE7027706U - PH AND MILLIVOLTMETERS WITH DIGITAL DISPLAY. - Google Patents
PH AND MILLIVOLTMETERS WITH DIGITAL DISPLAY.Info
- Publication number
- DE7027706U DE7027706U DE19707027706 DE7027706U DE7027706U DE 7027706 U DE7027706 U DE 7027706U DE 19707027706 DE19707027706 DE 19707027706 DE 7027706 U DE7027706 U DE 7027706U DE 7027706 U DE7027706 U DE 7027706U
- Authority
- DE
- Germany
- Prior art keywords
- digital display
- millivoltmeters
- measured
- millivolt meter
- change
- 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
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
20.7.1970July 20, 1970
pH- und Millivoltmeter mit digitaler AnzeigepH and millivolt meter with digital display
Die Neuerung betrifft pH- und Millivoltmeter mit digitaler Anzeige. Derartige Geräte führen sich in neuerer Zeit weitgehend in die Messtechnik ein, wail die fehlerfreie Ablesung der Messwerte sehr einfach ist und auch vou ungeschultem Personal vorgenommen werden kann. Schwierigkeiten treten bei der digitalen Anzeige aber auf, wenn Messwerte abgelesen werden sollen, deren Grosse sich kurzfristig, nach beider Richtungen, ändert. Im Gegensatz zur analogen Messung lassen sich infolge der dann übereinander springenden Ziffern weder Einzelwerte ablesen noch ermitteln, ob die Messwerte fallende oder steigende Tendenz haben. Aus diesem Grunde ist z.B. eine Titration mit digital anzeigenden Messgeräten unmöglich.The innovation concerns pH and millivoltmeters with digital displays. In recent times, such devices have become widely used in measurement technology because it is very easy to read the measurement values without errors and can also be carried out by untrained personnel. Difficulties arise with the digital display, however, when measured values are to be read, the size of which changes in the short term both directions, changes. In contrast to the analog measurement, leave it As a result of the digits jumping over one another, you can neither read individual values nor determine whether the measured values are falling or rising Have tendency. For this reason, e.g. a titration with digitally indicating measuring devices is impossible.
Gegenstand der Neuerung ist es, diesen Nacliteil zu beheben.
Nach der Feuerung ist zusätzlich zum digitalen Ablesesystem an dem pH- und Millivoltmeter ein analog wirkendes Anzeigesystem vorgesehen,
welches differentiell die Änderung der Messwertgrösse anzeigt, so dass
sich Qmkehrpunkte, z. B. bei einer Titration, die digital nicht feststellbar
sind, erkennen lassen.
Die Neuerung ist anhand der Fig. erläutert.The object of the innovation is to remedy this nacli part. After firing, in addition to the digital reading system on the pH and millivoltmeter, an analog display system is provided which differentially displays the change in the measured value so that there are reversal points, e.g. B. in a titration that cannot be determined digitally, can be recognized.
The innovation is explained with reference to the figure.
Die Frontplatte 1 eines pH- und Millivoltmeters, mit den verschiedenen Regulier knöpf en 2 ausgestattet, trägt zur digitalen Ablesung die Ziffern-Tafel 3. Daneben befindet sich nach der Neuerung z. B. ein ebenfalls von den Messwerten gesteuertes Zeigerinstrument 4, an dem der Nullpunkt einer sich ändernden Spannung und deren steigende oder fallende Tendenz zu erkennen sind.The front panel 1 of a pH and millivoltmeter, with the various Equipped with regulating buttons 2, the number board is used for digital reading 3. Next to the innovation z. B. a pointer instrument 4, also controlled by the measured values, at which the zero point a changing voltage and its rising or falling tendency can be recognized.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19707027706 DE7027706U (en) | 1970-07-23 | 1970-07-23 | PH AND MILLIVOLTMETERS WITH DIGITAL DISPLAY. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19707027706 DE7027706U (en) | 1970-07-23 | 1970-07-23 | PH AND MILLIVOLTMETERS WITH DIGITAL DISPLAY. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE7027706U true DE7027706U (en) | 1970-12-03 |
Family
ID=6613235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19707027706 Expired DE7027706U (en) | 1970-07-23 | 1970-07-23 | PH AND MILLIVOLTMETERS WITH DIGITAL DISPLAY. |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE7027706U (en) |
-
1970
- 1970-07-23 DE DE19707027706 patent/DE7027706U/en not_active Expired
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