SU1449836A1 - Thermal transducer - Google Patents

Description

one

The invention relates to this technique and would be able to measure linear measurements. Objects or gaps in .iiacTHx technology.

Heater A; by means of electroxodes-5, it is connected to the corresponding power source. The thermosensitive element 7 is included in a resistance measurement circuit or in a voltage divider circuit. After heating the heater 4, the temperature-sensitive element 7 appears in its temperature field. If this element 7, when moving in the direction to the heater 4, falls into a region with a temperature of, for example, + 60 ° C, then in the film of vanadium dioxide occurs

The purpose of the invention is to expand the functional capabilities by means of a linear displacement fragment in a wide 10 Range and with increased accuracy, i. In FIG. 1 shows a sensor; in fig. 2 - sensor calibration characteristic. phase transition from dielectric

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Ment 7 is made of vanadium dioxide, or another material, characterized by the presence of a phase transition of a meta-conductor, at which the specific 30 I resistance of the material changes

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several orders of magnitude, which ensures a high sensitivity of this: e-element. Element 7 is installed with the possibility of movement relative to: heater 4 in a direction perpendicular to its plane. The sensor works as follows.

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nor in the temperature-sensitive element in the working range of the measured displacements are excluded. The outer diameter of the sensor housing is 10 mm, the inner diameter of the housing is 6 mm, the height of the housing is 17 mm, the length of the heater film made of magnetite (Fe, 04) is 5 mm, the heater film width is 2 mm, the length of the OA of the Vanadium dioxide film is 5 mm, width Rina 2 mm. The sensitivity of the thermal sensor provides high measurement accuracy in the range of 3-6 mm.

6

Heater A; by means of electroxodes-5, it is connected to the corresponding power source. The thermosensitive element 7 is included in a resistance measurement circuit or in a voltage divider circuit. After heating the heater 4, the temperature-sensitive element 7 appears in its temperature field. If this element 7, when moving in the direction to the heater 4, falls into a region with a temperature of, for example, + 60 ° C, then in the film of vanadium dioxide occurs

phase transition from dielectric

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jumps. and

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 C1 T-Gx v jj.

nor in the temperature-sensitive element in the working range of the measured displacements are excluded. The outer diameter of the sensor housing is 10 mm, the internal diameter of the housing is 6 mm, the height of the housing is 17 mm, the length of the heater film made of magnetite (Fe, 04) is 5 mm, the heater film width is 2 mm, the length C of the Vanadium dioxide film is 5 mm wide Rina 2 mm. The sensitivity of the thermal sensor provides high measurement accuracy in the range of 3-6 mm.

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Claims (1)

THERMAL SENSOR comprising a housing and a parallel film heater and vanadium dioxide film thermosensitive element arranged one above the other, characterized in that, in order to expand the functionality by measuring linear displacements in a wide range with increased accuracy, the thermosensitive element is installed with the possibility of movement relative to film heater in a direction perpendicular to its plane. 1 C © oo 05