CN2144341Y - Mercury thermal potentiometer - Google Patents
Mercury thermal potentiometer Download PDFInfo
- Publication number
- CN2144341Y CN2144341Y CN 92243120 CN92243120U CN2144341Y CN 2144341 Y CN2144341 Y CN 2144341Y CN 92243120 CN92243120 CN 92243120 CN 92243120 U CN92243120 U CN 92243120U CN 2144341 Y CN2144341 Y CN 2144341Y
- Authority
- CN
- China
- Prior art keywords
- mercury
- potentiometer
- glass tube
- temperature
- resistance wire
- 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 - Lifetime
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Abstract
The utility model relates to a new-style potentiometer, especially a mercury thermal potentiometer, which is characterized in that the resistance wire and the electric contacts are arranged inside ordinary mercury thermometers. When the mercurial column varies according to environmental temperatures and then slides in the resistance wire accordingly, the voltage ratio of both sides of the resistance wire and the voltage between the electric contacts are altered continuously. The utility model is not only used as an ordinary thermometer, but also a temperature measurement detector to monitor long distance thermometer space or the temperature and humidity level of objects. The utility model can be used in various automatic temperature control devices.
Description
The utility model relates to a kind of novel potentiometer, many functions of particularly a kind of silver-colored thermometer that catchments, thermistor and three kinds of different components of potentiometer mercury temperature-sensitive potentiometer.
Existing mercurial thermometer mainly is made up of airtight hollow glass tube and scale that mercury is housed.This thermometer can be used for closely direct temperature measurement, carries out remote temperature measurement but can not be used as temperature probe, can not change voltage, electric current or the resistance of circuit with variation of ambient temperature, can not be used for automation control.
Existing thermistor is the non-linear element that utilizes materials such as semiconductor that the sensitiveness of temperature is made, its volume is little, can change voltage, electric current or the resistance of circuit with variation of ambient temperature, but, survey resistance scope and precision and be subjected to certain limitation owing to limit by material.In addition, it can not resemble to be used for the mercurial thermometer directly measuring and observe temperature.
Existing potentiometer is made up of resistance diaphragm, fixed electrical contact and sliding electric contact, when sliding electric contact slides on the resistance diaphragm, change the voltage ratio of resistance diaphragm both sides serially, thereby make output voltage between fixed electrical contact and the sliding electric contact also along with change.This potentiometer can be used to control the volume of electrical equipment such as broadcast receiver, television set ... but it does not have many functions of mercurial thermometer and thermistor, can not be used for thermometric and do automatic temperature-controlled.
Task of the present utility model is many functions new device that a kind of silver-colored thermometer that catchments, thermistor, three kinds of different components of potentiometer will be provided---a mercury temperature-sensitive potentiometer.This device not only can resemble the closely temperature of space and object of direct measurement the common mercurial thermometer, and can be incorporated with the circuit of display unit as temperature probe, monitor the temperature of dark ground temperature, deep water temperature and remote space and object, also can be used for automation control.It has purposes widely in weather forecast, earthquake prediction, volcano forecast and other field.
Task of the present utility model is finished with following technical scheme: the joint resistance wire of in the airtight hollow glass tube of mercurial thermometer, packing into, and resistance wire one end stretches in the mercury, and the other end is connected with the outer metal contacts of pipe; In the mercury storehouse, pack into outside joint wire and the extraction tube as another electric contact.When mercury changed with the ambient temperature lifting, it was done lifting continuously and slides on resistance wire, thereby makes two voltage, electric current or resistance between the electric contact that corresponding variation also take place.Its operation principle and potentiometer broadly similar, different is: the travelling arm of potentiometer is a human control, and the travelling arm of this device---mercury is by temperature control automatically.
Resistance wire of the present utility model can be made with main material and the technology of making the potentiometer resistance sheet, its the available thin glass yarn of end silk, thin nylon wire or other insulating material are made filament, coat carbon film, metal film or other resistance material on the filament, also can directly use the metallic resistance silk, its resistance can be made some ohm, some K ohms and some megohms multiple selected for the time spent.
Electric contact in this device mercury storehouse can be drawn from following or side, also can pass glass wall and draw from above.
For the ease of using in water He in the wet environment, the exposed part of metal contacts all covers in the sealing cap except that two solder joints.Also twist after two solder joints are burn-on and gone between and be connected on the sealing cap with seal cover.
For cover glass pipe safety, glass tube can be placed in the metal cap.
Be further described below in conjunction with the embodiment accompanying drawing.
Figure one is the schematic diagram of the utility model embodiment, and figure two is the utility model principle electrographs.
From figure one as can be seen, the resistance wire (2) of in the airtight hollow glass tube of mercurial thermometer (1), packing into, resistance wire (2) one ends stretch in the mercury (3), the other end and metal contacts (4), solder joint (5) is connected with lead-out wire (6), after wire electric contact (7) is drawn in mercury storehouse (8), pass glass wall (9), pass from the top of glass tube (1), be welded on the solder joint (11) of bakelite cap (10), bakelite cap (10) is enclosed within the top of glass tube (1), carry out bonding and sealing with cementation material (16), bakelite lid (13) is twisted by gong line (14) and is connected on the bakelite sealing cap (10), and a side of glass tube (1) is carved with temperature scale (15).
Claims (5)
1, one by airtight hollow glass tube (1), resistance wire (2), mercury (3), mercury storehouse (8), the mercury temperature-sensitive potentiometer that scale (15) is formed, it is characterized in that: A: the joint resistance wire (2) of in airtight hollow glass tube (1), packing into, resistance wire (2) one ends stretch in the mercury (3), the other end and metal contacts (4), solder joint (5) is connected with lead-out wire (6), B: metal contacts (7) is passed glass tube walls (9), one is stretched in the mercury storehouse (8), on the solder joint (11) that is fixed in sealing cap (10), and is connected with lead-out wire (12), C: sealing cap (10) is enclosed within the upper end of glass tube (1), and with insulating material (16) cementation, the upper end is connected D by spiral shell button (14) with seal cover (13): scale (15) is carved with in the side of glass tube (1).
2, according to claim 1 described mercury temperature-sensitive potentiometer, it is characterized in that: the metal contacts (7) in mercury storehouse (8) is to pass glass tube walls (9) to pass from the top of glass tube (1).
3, according to claim 1 described mercury temperature-sensitive potentiometer, it is characterized in that: the metal contacts (7) in mercury storehouse (8) directly passes from mercury storehouse (8) introversive any direction.
4, according to claim 1 described mercury temperature-sensitive potentiometer, it is characterized in that: whole potentiometer is packed in the protective cover.
5, according to claim 1 described mercury temperature-sensitive potentiometer, it is characterized in that: potentiometer is not packed in the protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92243120 CN2144341Y (en) | 1992-11-29 | 1992-11-29 | Mercury thermal potentiometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92243120 CN2144341Y (en) | 1992-11-29 | 1992-11-29 | Mercury thermal potentiometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2144341Y true CN2144341Y (en) | 1993-10-20 |
Family
ID=33782768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92243120 Expired - Lifetime CN2144341Y (en) | 1992-11-29 | 1992-11-29 | Mercury thermal potentiometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2144341Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310588A (en) * | 2021-06-15 | 2021-08-27 | 湖北工业大学 | Remote temperature detection device based on mercury thermometer |
-
1992
- 1992-11-29 CN CN 92243120 patent/CN2144341Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310588A (en) * | 2021-06-15 | 2021-08-27 | 湖北工业大学 | Remote temperature detection device based on mercury thermometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |