DE1648306C - Measuring device with a temperature sensor for the measurement and optical display of high temperatures in numerical form. Eliminated from: 1270834 - Google Patents

Description

realize that it is possible to use as a number carrier serving film tape 22 to accommodate a large number of numerical values and thus also to be displayed visually, without requiring a lot of space for this number carrier and its adjustment device.

The film tape can e.g. B. by a metal band

be replaced in which the measured values are milled or

are etched.

It is also possible, instead of the two-phase motor 10, to use a direct current motor with separate excitation to use. In this case, an amplifier for direct current must be provided.

1 sheet of drawings

Claims (1)

table display of high temperatures in numerical form, Claim: which contains a compensation measuring bridge, whose Potentiometer is adjusted by a motor and Measuring device with a temperature sensor for the non-linear relationship between the measurement and the optical display of high temperatures 5 measured temperatures and the temperature temperatures in numerical form, which (measuring device) contains a sensor supplied voltages through appropriate compensation measuring bridge, whose Poten- number arrangement on a projectionable tiometer is adjusted by a motor and figures are taken into account,
at which (compensation measuring bridge) the The inventor set himself the task at non-linear relationship between the very many measuring measurements To accommodate temperatures and the temperature values on the number carrier, what sensor tensions delivered by either in those practical cases in which the Talking number arrangement (or number measuring range should be large, may be desirable as distribution) to a projectable number - even in those practical cases in which carrier is taken into account, thereby marked 15 within a given measuring range a very draws, the number carrier (22) can be attached for subdividing the measured values into space economical inclusion of many numerical values a long band with two associated winding- This object was achieved by the inventor, coils (21) consists of the motor (10) that the number carrier for space-saving recording Compensation measuring bridge are driven. 20 many numerical values from a long band with two associated winding bobbins, which are driven by the motor of the compensation measuring bridge.
An embodiment of the invention is presented Hand of Figs. 1 and 2 of the drawing below 35 explained. In Fig. 1, 1 is a temperature sensor in the form of a thermocouple, with 2 a There is already a Schaliungsa.iordnung known, stabilized auxiliary power source, with 7 a Eichwiderin which stood the one supplied by a thermocouple and with 8 a resistance for suppression Tension by means of a zero gtuvanometer 30 from the zero point. At 20 the potentiometer is holding Compensation measuring bridge is measured, the resistance of the compensation measuring bridge is called, which in turn is adjusted by a motor. A chopper is denoted by 9 and a verin the measuring bridge included contact wire potentiometer with 19. There is a two meter to the amplifier is directly connected to the tempo-phased motor 10 to be measured, which via its temperature values calibrated (F. Lieneweg »temperature 35 shaft 11 the sliding contact of the potentiometer temperature measurement«, Leipzig, 1950, p. 45, and German resistance disguised. The motor 10 also drives Patent 553 309). still a winding spool 21 for a film tape 22 on It is also already known, on the extent to which the numerical values to be reproduced rotatable drum located numerical values are brought, which in turn according to FIG. 2 by means to make visible by projection in such a way, 4 ° of a light source 14, a lens 15, a diaphragm 16 that the drum circumference is perpendicular to the projection point and a further lens 17 on a projection shifts to the projection beam path. area 18 can be projected. It is thus the respective, in the projection beam- The arrangement according to FIGS. 1 and 2 works in current numerical value in a wi projection-following way. screen made visible (German Auslegeschrift 45 First, the compensation circuit 1, 2, 7, 8, I 046 894). 20 fixed by means of the calibration resistor 7, and You can with this latter device, although depending on the thermocouple used 1 and non-linear relationship between the desired measuring range. The chopper 9, on appropriate measured variable, which in turn, through its input, the difference in the voltages of the Longitudinal shift of the scale is shown, 50 thermocouple 1 and that of the potentiometer and the voltage tapped from the measuring resistor 20 lies with the numerical values to be projected size by appropriate division on the projected amplifier 19, whose output with a phase take into account capable payment carriers. of the two-phase motor 10 is connected. The second There is also a measuring device the input of an object with this object a voltage of the chopper becomes zero,
Ruler-like .Strichscale (first grid) firmly connected to each position of the potentiometer resistor 20 is, which in turn corresponds to the mentioned object, so a certain temperature and that reciprocated and at which measuring device 60 film tape 22 is simultaneously over by the motor by means of a second grid, which in turn adjusts the winding reel 21, d. H. that those of the Temseinen Grid lines make a small angle with the number corresponding to the temperature in the projection grid lines of the first grating, the optical path also appears, with the non-linear Vcr intermediate values the tick marks of the first grid to the ratio between the measured temperatures and Display can be brought (German interpretation 65 the voltages supplied by the thermocouple 1 schr.; t I 060 609). due to the non-linear division on the film tape The invention is based on a measuring device which is also taken into account.
a temperature sensor for measurement and op- The described embodiment already leaves