CN110440943A - A kind of temp measuring method - Google Patents
A kind of temp measuring method Download PDFInfo
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- CN110440943A CN110440943A CN201910607170.9A CN201910607170A CN110440943A CN 110440943 A CN110440943 A CN 110440943A CN 201910607170 A CN201910607170 A CN 201910607170A CN 110440943 A CN110440943 A CN 110440943A
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- measuring method
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/32—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable
- G01K5/34—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable the body being a capsule
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K5/00—Measuring temperature based on the expansion or contraction of a material
- G01K5/32—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable
- G01K5/46—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable with electric conversion means for final indication
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses a kind of temp measuring methods, include the following steps: S1, thermometric fluid media (medium) is placed in container, and are arranged on container and change the liquid level linkage mechanism being connected with the liquid level of thermometric fluid media (medium)；S2, by liquid level linkage mechanism by thermometric fluid media (medium) because the variation of liquid level caused by expanding with heat and contract with cold is converted to the change in displacement of liquid level linkage mechanism；S3, change in displacement value caused by liquid level linkage mechanism is detected by displacement sensor；S4, corresponding temperature signal is converted by change in displacement value and is exported.Temp measuring method provided by the invention detects the volume change of thermometric fluid media (medium) using mechanical liquid level linkage mechanism, to obtain temperature signal, temperature measurement accuracy is higher, and temperature measurement stability is preferable, is not easily susceptible to such environmental effects.
Description
Technical field
The invention belongs to the technical fields of temperature measurement, and in particular to a kind of temp measuring method.
Background technique
Currently, two class of body temperature measuring devices Main physical formula thermometer and digital temperature meter, wherein physically thermometer
Mainly there are mercurial thermometer, alcohol thermometer etc., digital temperature meter mainly has infrared body temperature rifle, thermocouple digital display thermometer
Deng.
In numerous clinical thermometers, physically thermometer is at low cost with it, accuracy is high has obtained being widely recognized as people,
But physically the time of measuring of thermometer is partially long and has significant limitation in terms of digital applications.Although digital body thermometer
Have great progress in terms of property easy to use, digital applications scalability, but due to its accuracy of measurement vulnerable to environment because
The influence of plain aspect and it is not fully up to expectations.
China Patent Publication No. CN1051636C discloses a kind of temperature sensor, is examined by liquid level displacement sensor
Temperature signal is switched to electric signal by the liquid-column height for surveying expansion type liquid, and this temperature sensor uses contactless liquid level
Displacement sensor detects liquid level, and since non-contact detection mode precision is lower, stability is also poor, therefore the temperature sensing
The performance of device is to be improved.
Summary of the invention
At least one of to solve above-mentioned technical problem, the present invention proposes a kind of temp measuring method.
The purpose of the present invention is achieved through the following technical solutions:
A kind of temp measuring method is provided, is included the following steps:
S1, thermometric fluid media (medium) is placed in container, and is arranged on container and changes with the liquid level of thermometric fluid media (medium)
The liquid level linkage mechanism being connected；
S2, by liquid level linkage mechanism by thermometric fluid media (medium) because the variation of liquid level caused by expanding with heat and contract with cold is converted to liquid level
The change in displacement of linkage mechanism；
S3, change in displacement value caused by liquid level linkage mechanism is detected by displacement sensor；
S4, corresponding temperature signal is converted by change in displacement value and is exported.
As a further improvement, it is provided on the container and generates reciprocal liquid because expanding with heat and contract with cold with thermometric fluid media (medium)
The liquid level of position variation changes chamber, and the liquid level linkage mechanism is that the liquid level changed in chamber with liquid level changes the reciprocating liquid being connected
Position linkage mechanism.
As a further improvement, the container includes vessel shell, and the inside of vessel shell is formed with cavity, the thermometric stream
Body medium is placed in cavity, and the liquid level variation chamber is the push rod barrel chamber being arranged on vessel shell, push rod barrel chamber inner end
Be connected to cavity, outer end is connected to the external world, the liquid level linkage mechanism include flexible restoring organ and be arranged in push rod barrel chamber
And the push rod that can be moved axially along push rod barrel chamber, it is slidingly sealed between the periphery of the inner end of the push rod and the wall surface of push rod barrel chamber
Cooperation, the flexible restoring organ connect with push rod and keep push rod mobile to inner end.
As a further improvement, in step s 2, change in displacement caused by liquid level linkage mechanism is the axial direction of push rod
Change in displacement, in step s3, institute's displacement sensors are used to detect the axial displacement changing value of push rod.
As a further improvement, in step s 4, by the temperature conversion module that is connect with displacement sensor by push rod
Axial displacement changing value be converted into corresponding temperature signal, then the display module by being connected with temperature conversion module will be warm
Spend signal output display.
As a further improvement, institute's displacement sensors are capacitor grid transducer or grating sensor or magnetic induction sensor.
As a further improvement, the capacitor grid transducer is absolute type capacitor grid transducer；Alternatively, the grating sensor
For absolute optical gate sensor；Alternatively, the magnetic induction sensor is absolute type magnetic induction sensor.
As a further improvement, it is provided with that inner end is connected to cavity, outer end is connected to extraneous overflow on the vessel shell
Flow cartridge chamber, the overflow piston that can be moved axially along overflow barrel chamber is provided in the overflow barrel chamber, and the overflow piston be connected with
The overflow spring for moving inward overflow piston.
As a further improvement, the outer end of the overflow barrel chamber is threaded with end cap, and guiding is provided on the end cap
Slot is fixedly installed the guide rod for being pierced by the guide groove on the overflow piston, and the overflow spring is set on guide rod,
And the both ends of overflow spring push up be located between overflow piston and end cap respectively.
As a further improvement, the body shape of the vessel shell be flat hexahedron, the vessel shell it is interior
Portion is formed with thermally conductive grid.
Temp measuring method provided by the invention includes the following steps: S1, thermometric fluid media (medium) is placed in container, and
It is arranged on container and changes the liquid level linkage mechanism being connected with the liquid level of thermometric fluid media (medium)；S2, it is incited somebody to action by liquid level linkage mechanism
Thermometric fluid media (medium) is converted to the change in displacement of liquid level linkage mechanism because of the variation of liquid level caused by expanding with heat and contract with cold；S3, pass through position
Displacement sensor detects change in displacement value caused by liquid level linkage mechanism；S4, corresponding temperature letter is converted by change in displacement value
Number and export.Temp measuring method provided by the invention detects the volume of thermometric fluid media (medium) using mechanical liquid level linkage mechanism
Variation, to obtain temperature signal, temperature measurement accuracy is higher, and temperature measurement stability is preferable, is not easily susceptible to such environmental effects.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is the flow diagram of temp measuring method of the invention.
Fig. 2 is the three-dimensional assembling structure schematic diagram for realizing the temperature measuring equipment of temp measuring method of the present invention.
Fig. 3 is the partial cross perspective view for realizing the vessel shell of temperature measuring equipment of temp measuring method of the present invention.
Fig. 4 is the dress of the overflow piston for realizing the temperature measuring equipment of temp measuring method of the present invention, overflow spring, end cap, guide rod
Distribution structure schematic diagram.
Fig. 5 is the three-dimensional dress of the push rod for realizing the temperature measuring equipment of temp measuring method of the present invention, bearing shell, constant pressure ventilated membrane, sleeve
Distribution structure schematic diagram.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to make those skilled in the art more fully understand technical solution of the present invention
Applying example, the present invention is described in further detail, it should be noted that in the absence of conflict, embodiments herein and
Feature in embodiment can be combined with each other.
In conjunction with shown in Fig. 1 to Fig. 5, the embodiment of the present invention provides a kind of temp measuring method, includes the following steps:
S1, thermometric fluid media (medium) is placed in container, and is arranged on container and changes with the liquid level of thermometric fluid media (medium)
The liquid level linkage mechanism being connected.Specifically, be provided on the container with thermometric fluid media (medium) generated because expanding with heat and contract with cold it is past
The liquid level of multiple liquid level variation changes chamber, and the liquid level linkage mechanism is reciprocal to be connected with the liquid level variation in liquid level variation chamber
Formula liquid level linkage mechanism.More specifically, the container includes vessel shell, and the inside of vessel shell is formed with cavity, the thermometric stream
Body medium is placed in cavity, and the liquid level variation chamber is the push rod barrel chamber being arranged on vessel shell, push rod barrel chamber inner end
Be connected to cavity, outer end is connected to the external world, the liquid level linkage mechanism include flexible restoring organ and be arranged in push rod barrel chamber
And the push rod that can be moved axially along push rod barrel chamber, it is slidingly sealed between the periphery of the inner end of the push rod and the wall surface of push rod barrel chamber
Cooperation, the flexible restoring organ connect with push rod and keep push rod mobile to inner end.
S2, by liquid level linkage mechanism by thermometric fluid media (medium) because the variation of liquid level caused by expanding with heat and contract with cold is converted to liquid level
The change in displacement of linkage mechanism.Specifically, the axial displacement that change in displacement caused by liquid level linkage mechanism is push rod changes.
S3, change in displacement value caused by liquid level linkage mechanism is detected by displacement sensor, specifically, the displacement passes
Sensor is used to detect the axial displacement changing value of push rod, and institute's displacement sensors are capacitor grid transducer or grating sensor or magnetic grid
Sensor.
S4, corresponding temperature signal is converted by change in displacement value and is exported.Specifically, by being connect with displacement sensor
Temperature conversion module convert corresponding temperature signal for the axial displacement changing value of push rod, then by with temperature conversion module
Temperature signal is exported and is shown by the display module being connected.
Temp measuring method provided in an embodiment of the present invention is when implementing, since the variation of temperature can be such that thermometric fluid media (medium) generates
Thermal expansion and cold contraction effect, when the volume expansion of thermometric fluid media (medium), thermometric fluid media (medium) releases push rod through push rod barrel chamber, when thermometric stream
The volume contraction of body medium, flexible restoring organ make pusher retracted, and the variation of such temperature can make push rod generate corresponding displacement
Variation, then pass through the displacement that displacement sensor accurately detects push rod, displacement is converted temperature change by temperature conversion module
Signal, then pass through temperature output module output temperature signal.Temp measuring method provided in an embodiment of the present invention uses mechanical liquid
Position linkage mechanism detects the volume change of thermometric fluid media (medium), to obtain temperature signal, temperature measurement accuracy is higher, thermometric is steady
It is qualitative preferable, it is not easily susceptible to such environmental effects.
As further preferred embodiment, institute's displacement sensors are capacitor grid transducer or grating sensor or magnetic grid
Sensor.Capacitor grid transducer, grating sensor, magnetic induction sensor measurement accuracy can reach 0.01mm-0.001mm, can adopt
Small change in location is measured with relative type motor capacitor grid transducer, absolute position can also be measured using absolute type capacitor grid transducer.
When the opposite capacitor grid transducer or grating sensor or magnetic induction sensor that displacement sensor used is increment type, after power-off,
Liquid level changes after displacement sensor is unable to measure power-off, at this time if to re-start temperature measurement, need to reset liquid
The corresponding relationship of position height and a certain initial temperature, it is preferred that initial temperature is maximum range corresponding temperature, resets corresponding position
For maximum level height.For this purpose, institute's displacement sensors are provided with can be touched when the push rod is located at push rod barrel chamber outermost end
The reset aligning key of hair.Since institute's displacement sensors have a reset aligning key, when mechanical structure touches reset calibration
It when key, that is, can produce a reset calibration signal, initial temperature resetting carried out by built-in control program, realizes and resets calibration.This
Embodiment is set as when the push rod is located at push rod barrel chamber outermost end, and resetting aligning key can be triggered to transmit and reset calibration letter
Number.
As further preferred embodiment, the capacitor grid transducer is absolute type capacitor grid transducer；Alternatively, the light
Gate sensor is absolute optical gate sensor；Alternatively, the magnetic induction sensor is absolute type magnetic induction sensor.Displacement sensor is adopted
With absolute type capacitor grid transducer or absolute optical gate sensor or absolute type magnetic induction sensor, displacement height can be directly measured
Value, it is no longer necessary to reset calibration structure, also not need sensor and be persistently powered, the only energization when needing to measure can be saved greatly
Battery capacity is saved, extends and uses the time.
Temp measuring method to realize the present invention, the embodiment of the present invention also provide a kind of temperature measuring equipment, and temperature measuring equipment includes holding
Device shell 1 is formed with cavity 2 inside the vessel shell 1.The vessel shell 1 is canister shell, and vessel shell 1 uses metal material,
Preferred material is that the high steel alloy such as stainless steel of heat transfer efficiency can since the thermal conductivity of metal material is far longer than glass material
It realizes efficient heat transfer, guarantees rapid survey.The body shape of the vessel shell 1 is flat hexahedron, preferably flat
Flat rectangular parallelepiped structure improves the contact area with testee as far as possible in this way under identical volume, improves heat transfer effect
Rate.The inside of the vessel shell is formed with thermally conductive grid, and cavity is divided into multiple interconnected sub- cavities by thermally conductive grid, will
By forming grid in the inside of the vessel shell, thermal conduction rate can be further increased, while thermally conductive lattice structure can increase
The rigidity of the strong container, further lift structure safety.Thermometric fluid media (medium) is filled in the cavity 2, thermometric fluid is situated between
Matter is liquid metal or liquid metal alloy, such as mercury or gallium-indium alloy, and the hot coefficient of cubical expansion of liquid metal is common
Within the temperature range of it is extremely stable, it is ensured that measurement accuracy.It is provided with inner end on the vessel shell 1 and is connected to cavity 2, outer end company
Extraneous push rod barrel chamber 3 is passed to, the push rod 4 that can be moved axially along push rod barrel chamber 3 is provided in the push rod barrel chamber 3, it is described to push away
Cooperation is slidingly sealed between the periphery of the inner end of bar 4 and the wall surface of push rod barrel chamber 3.The push rod 4, which is connected with, makes push rod 4 to inner end
The displacement sensor 6 of mobile flexible restoring organ 5 and the displacement for detecting push rod 4.Institute's displacement sensors 6 connect
There is the temperature conversion module 7 for converting displacement to temperature change signal, the temperature conversion module 7 is connected with for defeated
The temperature output module 8 of temperature signal out, institute's displacement sensors 6, temperature conversion module 7, temperature output module 8 are connected with electricity
Source 9, power supply 9 are powered displacement sensor 6, temperature conversion module 7, temperature output module 8.Wherein, temperature output module 8
It can be display such as Matrix LED screen or liquid crystal display, with displays temperature；Temperature output module may be voice prompting device such as loudspeaking
Device etc., to carry out voice broadcast temperature, temperature signal can also be sent to by temperature output module 8 by way of wireless transmission
Third party device.
The temperature measuring equipment of the present embodiment at work, expands with heat and contract with cold since the variation of temperature can be such that thermometric fluid media (medium) generates
Effect, when the volume expansion of thermometric fluid media (medium), thermometric fluid media (medium) releases push rod through push rod barrel chamber, when thermometric fluid media (medium)
Volume contraction, flexible restoring organ make pusher retracted, and the variation of such temperature can make push rod generate corresponding change in displacement, then lead to
The displacement that displacement sensor accurately detects push rod is crossed, displacement is converted temperature change signal by temperature conversion module, then leads to
Excess temperature output module output temperature signal.Temperature measuring equipment provided by the invention detects thermometric fluid Jie using mechanical mechanism
The volume change of matter is not easily susceptible to such environmental effects to obtain temperature signal, and performance is stablized, high reliablity, safety
It is high.
As further preferred embodiment, the vessel shell 1 is fixed on a bottom plate 10, is provided on the bottom plate 10
Along the symmetrically arranged two rows of positioning columns 11 of 3 length direction of push rod arrangement, being provided between the two rows positioning column 11 can be in bottom plate
Along the leading truck 12 of push rod length direction sliding on 10, the flexible restoring organ 5 is the multiple torsion for being fixed on leading truck 12
Spring, each torque spring all have two free ends, and two free ends are corresponding with one in two rows of positioning columns 11 respectively
Positioning column abuts against, and under the action of torque spring, one end of the leading truck 12 and the outer end of the push rod 4 are abutted against.It adopts
With the resetting-mechanism of multiple torque springs, the elastic reset power for acting on leading truck and push rod can be made more balanced, in this way, temperature
Variation can make thermometric fluid media (medium) generate thermal expansion and cold contraction effect caused by volume ratio variation it is more linear, measurement result is more
Precisely.
As further preferred embodiment, be arranged on the bottom plate 10 the restricted push rod 4 slide into outward it is pre-
It positions the push rod position-limit mechanism 13 set and limits the leading truck position-limit mechanism that the leading truck 12 slides into predetermined position outward
14.Push rod position-limit mechanism 13 and leading truck position-limit mechanism 14 can anti-throw-out lever 4 gone out from push rod barrel chamber 3, guarantee safety.
As further preferred embodiment, the capacitor grid transducer or grating sensor or magnetic induction sensor include fixed
Grid 61 and moving grid piece 62, the fixed grid piece 61 and bottom plate 10 are relatively fixed, and the moving grid piece 62 is fixedly mounted on leading truck 12
On.Outer cover 15 is installed, the fixed grid piece 61 is fixed on the inner surface of outer cover 15 on the bottom plate 10.In this way, moving grid piece can
Mobile with push rod, when push rod generates axial displacement, moving grid piece and fixed grid piece also generate opposite displacement, to detect push rod
Displacement.In addition, outer cover and bottom plate are formed by space for vessel shell, leading truck, push rod position-limit mechanism, leading truck position restrainer
Structure, torque spring, positioning column, displacement sensor, temperature conversion module etc. wrap up, and can play protective action.
As further preferred embodiment, it is provided with that inner end is connected to cavity 2, outer end is connected on the vessel shell 1
Extraneous overflow barrel chamber 16 is provided with the overflow piston 17 that can be moved axially along overflow barrel chamber 16, institute in the overflow barrel chamber 16
It states overflow piston 17 and is connected with the overflow spring 18 for moving inward overflow piston 17.Overflow barrel chamber is generally cylindrical, overflow
Cooperation is slidingly sealed between the outer peripheral surface of piston and the wall surface of overflow barrel chamber, overflow spring applies certain overflow to overflow piston
Pressure, overflow barrel chamber, overflow piston, overflow spring form a flow structure, are more than overflow pressure when thermometric object temperature transfinites
When power, extra thermometric fluid media (medium) can will not flow out to the external world automatically into overflow barrel chamber, prevent media Containers from failing, and protect
Protect temperature measuring device.
As further preferred embodiment, the outer end of the overflow barrel chamber 16 is threaded with end cap 19, the end cap
It is provided with guide groove on 19, the guide rod 20 for being pierced by the guide groove, the overflow bullet are fixedly installed on the overflow piston 17
Spring 18 is set on guide rod 20, and the both ends of overflow spring 18 push up be located between overflow piston 17 and end cap 19 respectively.It is above-mentioned
In structure, by rotary end cover, position of the end cap in overflow barrel chamber is adjusted, lives to adjust overflow spring and be applied to overflow
The elastic force of plug, and then play the effect for adjusting oil pressure relief.
As further preferred embodiment, the inner end of the overflow barrel chamber 16 and the push rod barrel chamber 3 are close to outer end
One section is connected.In above structure, only when test object temperature over-range, temp measuring method first reaches maximum range, i.e. push rod
It is moved to outermost end, overflow barrel chamber just passes through push rod barrel chamber and is connected with cavity to realize that overflow acts on, extra thermometric fluid
Medium just can be automatically into overflow barrel chamber.In this way, it is possible to reduce test object is in proper testing temperature range, flow structure pair
The swelling volume of thermometric fluid media (medium) and the influence of retraction volume.
As further preferred embodiment, the inner end of the push rod 4 is provided with constant pressure ventilated membrane 21, and the constant pressure is ventilative
The medial surface of film 21 is in contact with the thermometric fluid media (medium), the specially polytetrafluoroethylmicroporous microporous membrane of constant pressure ventilated membrane 5, and poly- four
Vinyl fluoride microporous membrane (PTFE film) is using polytetrafluoroethylene (PTFE) as raw material, using special process, through calendering, extrusion, biaxial tension
The methods of made of capillary film.PTFE film has fibrinogen shape microcellular structure, and 85% or more porosity is every square centimeter to have
1400000000 micropores, 0.02 μm -15 μm of pore diameter range.Polytetrafluoroethylmicroporous microporous membrane is ventilative but does not allow thermometric fluid media (medium) logical
It crosses.Connection 5 lateral surface of constant pressure ventilated membrane and extraneous air slot 22 are provided on the push rod 4.Specifically, the push rod 4
Inner end is arranged with the sleeve 23 that cooperation is slidingly sealed between the wall surface of the push rod barrel chamber 3, the bottom surface setting of the sleeve 23
There is venthole 24, the constant pressure ventilated membrane 21 is arranged on the inner bottom surface of the sleeve 23.Constant pressure ventilated membrane 21 passes through venthole
24 are in contact with thermometric fluid media (medium).For the setting convenient for air slot, it is provided in sleeve 23 in the inner end of the push rod 4
Bearing shell 25, the air slot 22 is opened on the bearing shell 25, and air slot 22 is corresponding with the position of venthole 24, described to push away
The outer diameter of bar 4 is less than the diameter of the push rod barrel chamber 3.At work, volume is generated when the thermometric fluid media (medium) in cavity 2 is heated
When expansion, air extra in cavity 2 is compressed, pressure increases to atmospheric pressure or more, and gas is saturating by venthole 24, constant pressure
Be discharged outside in the air slot 22 on bearing shell 25 after air film 21, thermometric fluid media (medium) squeezes sleeve 23 again, sleeve 23 by
To pressure, driving push rod 4 is moved in a straight line.In this way, can be arranged the air sucked in container chamber when carrying out temperature measurement
It removes, maintains the stabilization of container chamber pressure, maintain the accuracy of measured temperature.
Many details are elaborated in above description to facilitate a thorough understanding of the present invention, still, the present invention can be with
Implemented using other than the one described here other modes, it is thus impossible to be interpreted as limiting the scope of the invention.
In short, although the present invention lists above-mentioned preferred embodiment, although it should be noted that those skilled in the art
Member can carry out various change and remodeling, unless such change and modification deviate from the scope of the present invention, otherwise should all wrap
It includes within the scope of the present invention.
Claims (10)
1. a kind of temp measuring method, which comprises the steps of:
S1, thermometric fluid media (medium) is placed in container, and is arranged on container and is connected with the variation of the liquid level of thermometric fluid media (medium)
Dynamic liquid level linkage mechanism；
S2, by liquid level linkage mechanism by thermometric fluid media (medium) because the variation of liquid level caused by expanding with heat and contract with cold is converted to liquid level linkage
The change in displacement of mechanism；
S3, change in displacement value caused by liquid level linkage mechanism is detected by displacement sensor；
S4, corresponding temperature signal is converted by change in displacement value and is exported.
2. a kind of temp measuring method according to claim 1, it is characterised in that: be provided on the container and be situated between with thermometric fluid
Matter generates the liquid level variation chamber of reciprocal liquid level variation because expanding with heat and contract with cold, and the liquid level linkage mechanism is to change in chamber with liquid level
Liquid level changes the reciprocating liquid level linkage mechanism being connected.
3. a kind of temp measuring method according to claim 2, it is characterised in that: the container includes vessel shell, vessel shell
Inside is formed with cavity, and the thermometric fluid media (medium) is placed in cavity, and the liquid level variation chamber is to be arranged on vessel shell
Push rod barrel chamber, push rod barrel chamber inner end is connected to cavity, outer end is connected to the external world, and the liquid level linkage mechanism includes that elasticity is multiple
Position mechanism and be arranged in push rod barrel chamber and can along the push rod of push rod barrel chamber axial movement, the periphery of the inner end of the push rod with push away
Cooperation is slidingly sealed between the wall surface of bar barrel chamber, the flexible restoring organ connect with push rod and keeps push rod mobile to inner end.
4. a kind of temp measuring method according to claim 3, it is characterised in that: in step s 2, liquid level linkage mechanism is produced
Raw change in displacement is that the axial displacement of push rod changes, and in step s3, institute's displacement sensors are used to detect the axial direction of push rod
Change in displacement value.
5. a kind of temp measuring method according to claim 4, it is characterised in that: in step s 4, by with displacement sensor
The axial displacement changing value of push rod is converted corresponding temperature signal by the temperature conversion module of connection, then by with temperature transition
Temperature signal is exported and is shown by the display module that module is connected.
6. a kind of temp measuring method according to any one of claim 1 to 5, it is characterised in that: institute's displacement sensors are
Capacitor grid transducer or grating sensor or magnetic induction sensor.
7. a kind of temp measuring method according to claim 6, it is characterised in that: the capacitor grid transducer is absolute type capacitive grating biography
Sensor；Alternatively, the grating sensor is absolute optical gate sensor；Alternatively, the magnetic induction sensor is absolute type magnetic grid biography
Sensor.
8. a kind of temp measuring method according to any one of claim 3 to 5, it is characterised in that: be arranged on the vessel shell
There is inner end to be connected to cavity, outer end is connected to extraneous overflow barrel chamber, being provided in the overflow barrel chamber can be along overflow barrel chamber axis
To mobile overflow piston, the overflow piston is connected with the overflow spring for moving inward overflow piston.
9. a kind of temp measuring method according to claim 8, it is characterised in that: the outer end of the overflow barrel chamber is threaded with
End cap is provided with guide groove on the end cap, the guide rod for being pierced by the guide groove is fixedly installed on the overflow piston, described
Overflow spring is set on guide rod, and the both ends of overflow spring push up be located between overflow piston and end cap respectively.
10. a kind of temp measuring method according to any one of claim 3 to 5, it is characterised in that: the main body of the vessel shell
Shape is flat hexahedron, and the inside of the vessel shell is formed with thermally conductive grid.
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| CN112461384A (en) * | 2020-11-17 | 2021-03-09 | 江苏金风扬电气有限公司 | Bus duct system for power supply |
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