CN207937386U - A kind of device measuring metal material specific heat capacity using pulse laser - Google Patents
A kind of device measuring metal material specific heat capacity using pulse laser Download PDFInfo
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- CN207937386U CN207937386U CN201721591928.7U CN201721591928U CN207937386U CN 207937386 U CN207937386 U CN 207937386U CN 201721591928 U CN201721591928 U CN 201721591928U CN 207937386 U CN207937386 U CN 207937386U
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- laser
- insulating box
- pulse laser
- specific heat
- heat capacity
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Abstract
The utility model is related to laser fields, and in particular to a kind of device measuring metal material specific heat capacity using pulse laser.The device includes insulating box, the pulse laser equipment for emission pulse laser beam, pulse laser equipment is arranged outside insulating box, workbench is provided in insulating box, metal cavity is installed, metal cavity outer surface is provided with temperature sensor on workbench, the outer surface of metal cavity is provided with the hatch frame of pulse laser beam entrance, metal cavity is internally provided with the catoptric arrangement of reflection laser beam, and the through-hole that pulse laser beam enters insulating box is provided in insulating box.By to the laser energy for injecting certain energy in metal cavity, measuring the temperature change of some key points, to calculate the case where it absorbs heat, and then the energy absorbed after temperature is integrally increased after calculating laser input energy, and then utilize（Wherein：Q is the energy of laser input, and t is temperature, and m is quality）Calculate its specific heat capacity.
Description
Technical field
The utility model is related to laser fields, and metal material specific heat is measured using pulse laser more particularly, to a kind of
The device of appearance.
Background technology
Currently, the measurement that metal specific heat holds, generally use cooling method, high-temperature heat conductivity mensuration, commonsense method heating are surveyed
Amount method etc., there are no a kind of devices using laser measurement.We are fixed using the pulsed laser energy of pulse laser output
Feature, export fixed several laser pulses, the certain laser energy of metal to be measured actually inputed to, when to be measured
After metal fully absorbs pulsed laser energy, utilize（Wherein：Q is the energy of laser input, and t is temperature, and m is matter
Amount）Calculate its specific heat capacity.Entirety after laser input energy can also be immersed in certain adiabatic isothermal liquid, wait its whole
Temperature stabilizes after rising, and recycles formula Q=cm Δs t（Wherein：Q is the energy of laser input, and Δ t is temperature variation, m
For the quality of metal to be measured）Specific heat capacity is calculated by measuring temperature.
Utility model content
The purpose of the utility model is to provide a kind of devices measuring metal material specific heat capacity using pulse laser.
In order to solve the above technical problems, the technical solution adopted in the utility model is：It is a kind of to measure gold using pulse laser
Belong to the device of material specific heat capacity, including insulating box, the pulse laser equipment for emission pulse laser beam, the laser equipment are set
It sets outside insulating box, workbench is provided in the insulating box, metal cavity, described is installed on the workbench
Metal cavity outer surface is provided with temperature sensor, and the outer surface of the metal cavity is provided with opening for pulse laser beam entrance
Mouth structure, the metal cavity are internally provided with the catoptric arrangement of reflection laser beam, pulse are provided in the insulating box
Laser beam enters the through-hole of insulating box.
The setting of insulating box can be such that metal material is maintained on certain temperature value, prevent metal material from occurring with extraneous
Heat exchange influences measurement of the device to metal material specific heat capacity heat；The hatch frame of the outer surface setting of metal cavity, it is convenient
Laser beam is injected into metal cavity；The temperature sensor of the outer surface setting of metal cavity, is conducive to the temperature to metal cavity
Degree is constantly monitored；The laser reflection structure being arranged inside metal cavity, is conducive to laser and is reflected inside wire chamber,
Improve absorptivity of the metal cavitg body to laser energy.
Preferably, the catoptric arrangement is arcuate structure, and the catoptric arrangement is arranged in the bottom of metal cavity, described
Catoptric arrangement face described in hatch frame.Catoptric arrangement is arcuate structure, and catoptric arrangement is arranged in the bottom of metal cavity,
And it is right against the hatch frame that pulse laser enters metal cavity, be conducive to reflect pulse laser.
Preferably, the laser equipment is provided with laser head, the position face through-hole of the laser head.Laser head face
With the through-hole, all energy for being conducive to laser are injected into metal cavity.
Preferably, temperature indicating device, the temperature indicating device and the temperature are provided on the insulating box
Sensor is spent to be connected.Temperature indicating device is provided with conducive to the temperature for facilitating accurate observation with recording metal cavity.
Preferably, control switch, control switch and the laser equipment phase are provided on the insulating box
Even.Control switch is provided with conducive to the progress of work of control laser equipment in time.
Preferably, supply unit, the supply unit and the laser equipment phase are provided with outside the insulating box
Even.The setting of supply unit is to provide energy to laser equipment.
Compared with prior art, the utility model has the beneficial effects that：
The utility model is a kind of device measuring metal material specific heat capacity using pulse laser, by giving in metal cavity
Certain pulsed laser energy is injected, the temperature change of certain key point is measured, to calculate its specific heat capacity；Metal material makes
At metal cavity, be conducive to be absorbed the laser energy of input by metal cavity；Laser reflection structure is provided in metal cavity,
Improve absorptivity of the metal cavity to laser energy；It is measured by the temperature change of temperature sensor measurement some key points
The specific heat capacity of some known metal materials carrys out construct mathematical model, and then measures the specific heat capacity of unknown material.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for the device measuring metal material specific heat capacity using pulse laser.
Specific implementation mode
The utility model is further described With reference to embodiment.Wherein, being given for example only property of attached drawing
Illustrate, expression is only schematic diagram rather than pictorial diagram, should not be understood as the limitation to this patent；In order to which this reality is better described
With novel embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To ability
For field technique personnel, the omitting of some known structures and their instructions in the attached drawings are understandable.
The same or similar label correspond to the same or similar components in the attached drawing of the utility model embodiment；In this practicality
In novel description, it is to be understood that if there is the orientation or positional relationship of the instructions such as term "upper", "lower", "left", "right" to be
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore retouched in attached drawing
The term for stating position relationship only for illustration, should not be understood as the limitation to this patent, for the common skill of this field
For art personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment
Fig. 1 is a kind of first embodiment for the device measuring metal material specific heat capacity using pulse laser of the utility model,
Laser equipment 3 including insulating box 1, for emitting laser beam 8, laser equipment 3 are arranged outside insulating box 1, are arranged in insulating box 1
There is workbench 2, metal cavity 4 is installed, 4 outer surface of metal cavity is provided with temperature sensor 5, metal on workbench 2
The outer surface of cavity 4 is provided with the hatch frame 6 of the entrance of laser beam 8, and metal cavity 4 is internally provided with the anti-of reflection laser beam 8
Structure 7 is penetrated, the through-hole 12 that laser beam 8 enters insulating box 1 is provided in insulating box 1.
Wherein, catoptric arrangement 7 is arcuate structure, and catoptric arrangement 7 is arranged in the bottom of metal cavity 4,7 face of catoptric arrangement
Hatch frame 6.
In addition, laser equipment 3 is provided with laser head 9, the position face through-hole 12 of the laser head 9.
Wherein, temperature indicating device 10 is provided on insulating box 1, temperature indicating device 10 is connected with temperature sensor 5.
In addition, being provided with control switch 11 on insulating box 1, control switch 11 is connected with the laser equipment 3.
Wherein, it is provided with supply unit outside insulating box 1, supply unit is connected with the laser equipment 3.
Concrete operating principle：By the metal material of the metal material of known specific heat capacity and unknown specific heat capacity, it is fabricated to the same
The metal cavity 4 of special shape；After the metal cavity of known specific heat capacity is fixed on the workbench 2 of insulating box 1, in known ratio
The outer surface mounting temperature sensor 5 of the metal cavity of thermal capacitance；Start insulating box 1, the metal cavity of known specific heat capacity is made to reach
Certain time is kept after certain temperature, and the temperature value of the metal cavity of known specific heat capacity at this time is recorded according to temperature display；It opens
Dynamic laser equipment, pulse laser equipment export the pulsed laser energy of certain energy value（Each pulse energy of pulse laser output
Amount is fixed, as long as exporting several pulses, can know that how many laser energy outputed）, it is known that the wire chamber body temperature of specific heat capacity
Degree increases, and records its temperature variations, for calculating the case where it absorbs heat, according to actual conditions model of fit, the mould
Type is used to measure the specific heat capacity of unknown specific heat capacity metal；The metal cavity of unknown specific heat capacity is placed in certain time in insulating box,
So that its entirety is reached certain temperature and kept for certain time, records temperature value at this time；Start laser equipment 3, laser equipment 3 is defeated
Go out 8 energy of laser beam of certain value, the metal cavity temperature of unknown specific heat capacity increases, by the temperature for connecting temperature sensor 5
Display screen 10 records the situation of change of its temperature；According to the model being fitted in step S4, unknown specific heat capacity gold is calculated in turn
Belong to the specific heat capacity of material.Wherein, the energy of laser beam 8 cannot make the metal of the metal material and unknown specific heat capacity of known specific heat capacity
Material is melted or gasifies.In addition, laser equipment 3 according to actual demand, can export the laser beam 8 of certain energy value.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (6)
1. a kind of device measuring metal material specific heat capacity using pulse laser, including insulating box（1）, be used for emission pulse laser
Beam（8）Laser equipment（3）, the laser equipment（3）It is arranged in insulating box（1）Outside, it is characterised in that：The insulating box
（1）In be provided with workbench（2）, the workbench（2）On metal cavity is installed（4）, the metal cavity（4）Outside
Surface is provided with temperature sensor（5）, the metal cavity（4）Outer surface be provided with laser beam（8）The opening knot of entrance
Structure（6）, the metal cavity（4）It is internally provided with reflection laser beam（8）Catoptric arrangement（7）, the insulating box（1）In
It is provided with laser beam（8）Into insulating box（1）Through-hole（12）.
2. the device according to claim 1 for measuring metal material specific heat capacity using pulse laser, it is characterised in that：It is described
Catoptric arrangement（7）For arcuate structure, the catoptric arrangement（7）It is arranged in metal cavity（4）Bottom, the catoptric arrangement
（7）Hatch frame described in face（6）.
3. the device according to claim 2 for measuring metal material specific heat capacity using pulse laser, it is characterised in that：It is described
Laser equipment（3）It is provided with laser head（9）, the laser head（9）Position face through-hole（12）.
4. the device according to claim 3 for measuring metal material specific heat capacity using pulse laser, it is characterised in that：It is described
Insulating box（1）On be provided with temperature indicating device（10）, the temperature indicating device（10）With the temperature sensor
（5）It is connected.
5. the device according to claim 4 for measuring metal material specific heat capacity using pulse laser, it is characterised in that：It is described
Insulating box（1）On be provided with control switch（11）, the described control switch（11）With the laser equipment（3）It is connected.
6. the device according to claim 5 for measuring metal material specific heat capacity using pulse laser, it is characterised in that：It is described
Insulating box（1）It is outer to be provided with supply unit, the supply unit and the laser equipment（3）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721591928.7U CN207937386U (en) | 2017-11-24 | 2017-11-24 | A kind of device measuring metal material specific heat capacity using pulse laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721591928.7U CN207937386U (en) | 2017-11-24 | 2017-11-24 | A kind of device measuring metal material specific heat capacity using pulse laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207937386U true CN207937386U (en) | 2018-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721591928.7U Active CN207937386U (en) | 2017-11-24 | 2017-11-24 | A kind of device measuring metal material specific heat capacity using pulse laser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655935A (en) * | 2017-11-24 | 2018-02-02 | 广东海洋大学 | A kind of device and assay method that metal material specific heat capacity is determined using pulse laser |
-
2017
- 2017-11-24 CN CN201721591928.7U patent/CN207937386U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655935A (en) * | 2017-11-24 | 2018-02-02 | 广东海洋大学 | A kind of device and assay method that metal material specific heat capacity is determined using pulse laser |
| CN107655935B (en) * | 2017-11-24 | 2024-02-23 | 广东海洋大学 | Device and method for measuring specific heat capacity of metal material by using pulse laser |
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