CN209727763U - Sample transmittance test equipment - Google Patents
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- CN209727763U CN209727763U CN201920183958.7U CN201920183958U CN209727763U CN 209727763 U CN209727763 U CN 209727763U CN 201920183958 U CN201920183958 U CN 201920183958U CN 209727763 U CN209727763 U CN 209727763U
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Abstract
This application involves a kind of sample transmittance test equipments, including laser emitter, damping assemblies, laser detector and information output apparatus, damping assemblies and laser detector are set gradually along the direction of propagation of laser transmitter projects laser, and laser detector link information output device；For placing sample between damping assemblies and laser detector, corresponding second electric signal of received laser and it is sent to information output apparatus when sample is placed in corresponding first electric signal of received laser and measurement when laser detector does not place sample for measuring, information output apparatus exports the first electric signal and the corresponding light transmittance of the second electric signal.Using the application, user can be facilitated to carry out light transmittance test to sample, the accurate light transmission for measuring sample provides reference for laser welding analysis.
Description
Technical field
This application involves technical field of performance test, more particularly to a kind of sample transmittance test equipment.
Background technique
Welding manufacture production for products such as plastic products, since laser welding has secure seal, easily controllable etc.
Feature, manufacturer are the laser welding used mostly.
However, the quality of laser welding is influenced by the light transmission of product, if the translucency of product is poor, laser is difficult to make
Welding position is combined closely, and welding effect is poor.Therefore, to the test of the light transmission of product, for ensuring welding effect to pass
It is important.
Utility model content
Based on this, it is necessary to which aiming at the problem that light transmission of uncertain soldered sample, providing one kind can accurately be surveyed
Measure the sample transmittance test equipment of light transmission.
A kind of sample transmittance test equipment, including laser emitter, damping assemblies, laser detector and information output dress
It sets, the damping assemblies and the laser detector are set gradually along the direction of propagation of the laser transmitter projects laser, and
The laser detector connects the information output apparatus；
For placing sample between the damping assemblies and the laser detector, the laser detector is for surveying
Amount connects when the sample is placed in corresponding first electric signal of received laser and measurement when not placing the sample
Corresponding second electric signal of the laser of receipts is simultaneously sent to the information output apparatus, the information output apparatus output described first
Electric signal and the corresponding light transmittance of second electric signal.
Above-mentioned sample transmittance test equipment, it is defeated by using laser emitter, damping assemblies, laser detector and information
Device out, the laser of laser transmitter projects pass through damping assemblies, can be detected to obtain corresponding electric signal by laser detector.It is real
Border is in use, separately detect when not placing sample between damping assemblies and laser detector using laser detector
One electric signal and the second electric signal when being placed with sample export the first electric signal and the second electricity by information output apparatus
The corresponding light transmittance of signal.In this way, user can be facilitated to carry out light transmittance test to sample, the light transmission of sample is accurately measured,
Reference is provided for laser welding analysis.
Detailed description of the invention
Fig. 1 is the structural block diagram of sample transmittance test equipment in one embodiment；
Fig. 2 is the operation principle schematic diagram of sample transmittance test equipment in one embodiment；
Fig. 3 is the side schematic perspective view of sample transmittance test equipment in one embodiment；
Fig. 4 is the side view of sample transmittance test equipment in one embodiment；
Fig. 5 is the main view of sample transmittance test equipment in one embodiment；
Fig. 6 is laser optical path transimiison analysis figure in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
With reference to Fig. 1, in one embodiment, a kind of sample transmittance test equipment, including laser emitter are provided
110, damping assemblies 130, laser detector 150 and information output apparatus 170, damping assemblies 130 and laser detector 150 are along sharp
The direction of propagation that optical transmitting set 110 emits laser is set gradually, and 150 link information output device 170 of laser detector.Its
In, for emitting laser, damping assemblies 130 make for reducing the energy of laser across damping assemblies 130 laser emitter 110
Laser energy attenuation, the energy for injecting the laser of laser detector 150 can be made in the acceptable of laser detector 150
In range.
For placing sample between damping assemblies 130 and laser detector 150.Laser detector 150 is can to connect
It receives laser and is converted to the device of electric signal；Specifically, laser detector 150 is not placed received when sample for measurement
It corresponding second electric signal of received laser and is sent to when sample is placed in corresponding first electric signal of laser and measurement
Information output apparatus 170.Information output apparatus 170 exports the first electric signal and the corresponding light transmittance of the second electric signal.
Wherein, electric signal can be current signal, be also possible to voltage signal.Damping assemblies 130 and laser detector 150
Between when not placing sample, the laser that laser emitter 110 emits is after damping assemblies 130 by laser detector 150
It receives；That is, the first electric signal is the corresponding electric signal of laser after damping assemblies 130.Damping assemblies 130 and laser are visited
When surveying placement sample between device 150, the laser that laser emitter 110 emits successively passes through damping assemblies 130 and detected sample
Product are received by laser detector 150 again；That is, the second electric signal is the laser pair after damping assemblies 130 and sample
The electric signal answered.Wherein, the first electric signal and the corresponding light transmittance of the second electric signal can be equal to the second electric signal and the first electricity
The inatheadearomatizationazone of both signals specifically can be the numerical value equal to the second electric signal divided by the numerical value of the first electric signal.Specifically,
Sample can be plastic products, and sample transmittance test equipment can be used for testing the light transmittance of plastic products.
Above-mentioned sample transmittance test equipment, by using laser emitter 110, damping assemblies 130, laser detector
150 and information output apparatus 170, the laser that laser emitter 110 emits by damping assemblies 130, can be by laser detector 150
Detection obtains corresponding electric signal.In actual use, it is separately detected using laser detector 150 in damping assemblies 130 and laser
The first electric signal when not placing sample between detector 150 and the second electric signal when being placed with sample, by
Information output apparatus 170 exports the first electric signal and the corresponding light transmittance of the second electric signal.In this way, can facilitate user to sample into
The test of row light transmittance, the accurate light transmission for measuring sample provide reference for laser welding analysis.
In one embodiment, laser emitter 110 is to be equal to swashing for the laser for welding optical maser wavelength for launch wavelength
Optical transmitting set.Wherein, welding optical maser wavelength is the wavelength for weld to sample required laser.Since sample is not
Light transmission under co-wavelength laser irradiation may be different, are equal to welding laser by using 110 launch wavelength of laser emitter
The laser of wavelength, that is, the wavelength of laser used in light transmittance test process is equal with the wavelength of laser when welding, so that test
Obtained light transmittance can accurately embody light transmission when sample is soldered, and light transmittance test accuracy is high.
By taking sample is plastic products as an example, welding optical maser wavelength can be 915nm.That is, being welded to plastic products
The wavelength for connecing required laser is 915nm (nanometer), and laser emitter 110 is the laser for emitting the laser of 915nm wavelength
Transmitter.
In one embodiment, damping assemblies 130 include multiple attenuators, and multiple attenuators are sent out along laser emitter 110
The direction of propagation for penetrating laser is arranged.Wherein, attenuator is swashed using having element made of the substance of absorption to laser
Energy reduces after light passes through attenuator.Specifically, multiple attenuators are arranged along the direction of propagation of laser, thus laser according to
Each attenuator is successively successively passed through in arrangement.By using multiple attenuators, attenuating is good, avoids because laser energy is big, produces
Heat amount is big and damages device, safe to use.
In one embodiment, above-mentioned sample transmittance test equipment further includes reflecting mirror, what laser emitter 110 emitted
Laser passes perpendicularly through attenuator after reflecting mirror reflects.On the one hand, the laser of reflecting mirror reflection a part, equally has laser
Attenuation, laser pass through the dual decaying of reflecting mirror and attenuator, laser filter can be surveyed to laser detector 150
The laser magnitude of amount；On the other hand, the direction of propagation of the adjustable laser of reflecting mirror, so that laser emitter 110 and decaying group
Part 130 can not have to be placed on same straight line, reduce whole occupancy length.
Specifically, reflecting mirror is the transmitting mirror that reflectivity is equal to 10%；That is, the laser energy Zhan of reflecting mirror reflection is always incident
The 10% of laser energy.More specifically, the incidence angle of laser can be 45 °.For example, as shown in Fig. 2, laser is a beam diameter
The directional light of 1.5mm (millimeter), the setting position of reflecting mirror and the propagation optical path of directional light are in 45 °, so that incidence angle is equal to
45 °, 90 ° of reflection lasers of reflecting optics.
In one embodiment, above-mentioned sample transmittance test equipment further includes laser energy absorption device, and laser energy is inhaled
Receive the opposite side that device is set to reflecting mirror reflection laser.Specifically, reflecting mirror include for reflection laser front and with just
The opposite back side in face；Laser energy absorption device is set to the reverse side of reflecting mirror.Wherein, laser energy absorption device is for inhaling
Receive the device of heat caused by laser.The energy of laser is generally bigger, and the heat of generation is also big, by using laser energy
The energy heat dissipation of laser, good heat dissipation effect can be absorbed in absorber.
In one embodiment, laser detector 150 includes photodiode and analog to digital conversion circuit, analog to digital conversion circuit
Connect photodiode and information output apparatus 170.Wherein, photodiode can experience laser and be converted to analog form
Electric signal.Specifically, photodiode receives laser when not placing sample and exports the telecommunications of first analog form
Number to analog to digital conversion circuit and receives laser when being placed with sample and export the electric signal of second analog form extremely
Analog to digital conversion circuit.The electric signal of first analog form is converted to the first electric signal of digital form by analog to digital conversion circuit,
And the electric signal of second analog form is converted to the second electric signal of digital form, and the first electric signal and second is electric
Signal is sent to information output apparatus 170.Such as shown in Figure 2.Photoelectric conversion is carried out, using mould by using photodiode
Number conversion circuit carries out analog-to-digital conversion, to realize laser acquisition, structure is simple and convenient for the subsequent signal for carrying out digital form
Processing.
In one embodiment, laser detector 150 can also include amplifying circuit, and photodiode passes through amplifying circuit
Connect analog to digital conversion circuit.Amplifying circuit after amplifying the electric signal for the analog form that photodiode exports for exporting
To analog to digital conversion circuit.Specifically, photodiode, amplifying circuit and analog to digital conversion circuit can be set in the same PCB
(Printed Circuit Board printed circuit board) obtains photosensitive circuit plate.It is appreciated that laser detector 150 can be with
Including other auxiliary elements, equally also can be set in photosensitive circuit plate.
In one embodiment, information output apparatus 170 includes processor (not shown) and display screen (not shown), processing
Device connects laser detector 150 and display screen.Processor receives the first electric signal and the second electric signal obtains corresponding light transmittance,
And control signal for controlling display screen output light transmittance is sent to display screen, to control display screen output light transmittance.
Wherein, processor may include obtaining for calculating the inatheadearomatizationazone of both the second electric signal and the first electric signal
Light rate and the single-chip microcontroller for sending the corresponding control signal of light transmittance to display screen.By using processor control display screen output
Light transmittance, user is by checking display screen you can learn that the light transmittance that test obtains, easy to use.Specifically, display screen can be with
It is touch screen, ease of use is high.It is appreciated that in other embodiments, information output apparatus 170 can also be including other
Device, for example, may include processor and speech player, processor controls speech player voice broadcast light transmittance.
In one embodiment, above-mentioned sample transmittance test equipment further includes that connection laser emitter 110 and laser are visited
The voltage regulator circuit (not shown) of device 150 is surveyed, voltage regulator circuit access external voltage simultaneously exports direct current to Laser emission
Device 110 and laser detector 150.Wherein, external voltage can be alternating current；Accordingly, voltage regulator circuit may include rectification
Circuit and regulating circuit, rectification circuit access alternating current and export direct current to regulating circuit, regulating circuit output pressure regulation after it is straight
Galvanic electricity is to laser emitter 110 and laser detector 150.It is appreciated that external voltage is also possible to the straight of external equipment output
Galvanic electricity；Accordingly, voltage regulator circuit includes regulating circuit.For laser emitter 110 and swash by using voltage regulator circuit
Optical detector 150 is powered, easy to use.
In one embodiment, above-mentioned sample transmittance test equipment further includes tabilized current power supply (not shown), voltage tune
Economize on electricity road passes through tabilized current power supply and connects laser emitter 110.Wherein, tabilized current power supply is the current adjustment of output and adjusts it
The device of constant output current afterwards.By connecting tabilized current power supply, a side between voltage regulator circuit and laser emitter 110
Face can make to export to the electric current of laser emitter 110 and stablize, emit laser power stability；On the other hand, adjustable output
To the size of current of laser emitter 110, so as to adjust the size of transmitting laser power according to demand, using flexible is high.
Specifically, tabilized current power supply includes constant-current source circuit and potentiometer, and the input terminal of constant-current source circuit connects voltage tune
Economize on electricity road, output end connect potentiometer one end, and the other end of potentiometer connects laser emitter 110.It is appreciated that can also be
Potentiometer one end connects the input terminal of voltage regulator circuit, other end connection constant-current source circuit, and the output end of constant-current source circuit connects
Connect laser emitter 110.By the size of adjusting potentiometer with adjusting circuit resistance value, to adjust the output to laser emitter
110 electric current.It is appreciated that in other embodiments, potentiometer can also be substituted using the component of other adjustable resistance values,
Such as slide rheostat.Further, tabilized current power supply, which can be set, obtains power supply circuit board in pcb board, on power supply circuit board
It can also include the component of other auxiliary tabilized current power supply work.
For example, voltage regulator circuit exports 5V direct current and 24V direct current in a detailed embodiment.Wherein, 5V is straight
Galvanic electricity is exported to photosensitive circuit plate, is used for laser detector 150；5V direct current and 24V direct current electricity output to power supply circuit board,
It is used for tabilized current power supply.
In one embodiment, above-mentioned sample transmittance test equipment further includes power switch, and voltage regulator circuit passes through
Power switch accesses external voltage.Wherein, power switch is for controlling total on/off, if power switch is closed, voltage
Adjusting circuit can access external voltage, if power switch disconnects, voltage regulator circuit power-off.It is controlled by using power switch
Total on/off, user can first disconnecting power switch reconnect the equipment of external voltage be provided, it is safe to use.
In one embodiment, above-mentioned sample transmittance test equipment can also include the power supply instruction of connection power switch
Lamp.Specifically, power supply indicator, which can be, is connected between power switch and voltage regulator circuit, is also possible to be connected to power supply
Switch one end far from voltage regulator circuit.By using power supply indicator, if power switch closure is powered, power supply indicator
Bright, if power switch disconnects no power, power supply indicator does not work, in this way, can be convenient whether ground instructed voltage adjusts circuit
It is powered.
In one embodiment, above-mentioned sample transmittance test equipment further includes that photoswitch, voltage regulator circuit pass through out
Photoswitch connects laser emitter 110 out.If photoswitch is closed out, the voltage of voltage regulator circuit output can be transmitted to sharp
Optical transmitting set 110；If photoswitch disconnects out, the voltage of voltage regulator circuit output can not be transmitted to laser emitter 110.Such as
This, controls the switch of laser emitter 110 in which can be convenient.
It is appreciated that above-mentioned sample transmittance test equipment can only include power switch and wherein one in photoswitch out
Kind, it also may include power switch and two kinds of photoswitch out.Further, photoswitch can be and be connected to voltage adjusting electricity out
In the route that road, tabilized current power supply and laser emitter 110 concatenate, that is, voltage regulator circuit, goes out photoswitch at tabilized current power supply
Be sequentially connected with laser emitter 110 or voltage regulator circuit, go out photoswitch, tabilized current power supply and laser emitter 110 according to
Secondary connection.
In one embodiment, above-mentioned sample transmittance test equipment can also include connecting out the light instruction out of photoswitch
Lamp.Specifically, light indicator light can be in the route for being serially connected in and being connected with out photoswitch out.By using light indicator light out, if
Photoswitch closure is powered out, then light indicator light is bright out, if photoswitch disconnects no power out, light indicator light does not work out, in this way, can
Easily to indicate whether laser emitter 110 is powered.
In one embodiment, with reference to Fig. 3 to Fig. 4, above-mentioned sample transmittance test equipment further includes main body, the first protection
Eyeglass 60 and the second protection eyeglass 70.Main body includes the first framework 11 and second framework 12 being oppositely arranged, and the first framework 11 is opened
Equipped with matched first groove of eyeglass 60 is protected with first, the first protection 60 Matching installation of eyeglass is in the first groove；Second framework
12 offer and the second protection eyeglass 70 matching and second groove opposite with the first groove location, the second protection matching of eyeglass 70
It is installed on the second groove.Wherein, the first groove is matched with the first protection eyeglass 60, refers to the size and shape of the first groove
It is matched with the first protection eyeglass 60, the first protection eyeglass 60 is allow to be installed on the first groove.
Laser emitter 110 and damping assemblies 130 are set in the first framework 11 and damping assemblies 130 and first are protected
Eyeglass 60 is oppositely arranged, that is, damping assemblies 130 are set gradually with the first protection eyeglass 60 along direction of laser propagation, and laser first passes through
By the first protection eyeglass 60 after overdamping component 130.Laser detector 150 is set in second framework 12 and laser acquisition
Device 150 is oppositely arranged with the second protection eyeglass 70；That is, the second protection eyeglass 70 and laser detector 150 are along direction of laser propagation
It sets gradually, laser reaches laser detector 150 after first passing through the second protection eyeglass 70.Information output apparatus 170 is installed on
One framework, 11/ second framework 12.For example, as shown in Figure 3 and Figure 4,151 are expressed as photosensitive two pole that laser detector 150 includes
Pipe, 152 are expressed as the analog to digital conversion circuit that laser detector 150 includes；Display screen 171 in information output apparatus 170 is arranged
In the first framework 11.Certainly, in other embodiments, display screen 171 also can be set in second framework 12.
By the way that the first protection eyeglass 60, the corresponding first protection eyeglass 60 on the second frame 12 are arranged on the first frame 11
Position setting second protection eyeglass 70, on the one hand, can be defeated in order to laser, by first protection eyeglass 60, second protect
Laser detector 150 is injected after eyeglass；On the other hand, it can prevent dust from entering the first framework 11 and second framework 12.
Specifically, such as Fig. 3 to Fig. 5, power switch 20, potentiometer 40 go out photoswitch 50, reflecting mirror 120, laser energy suction
It receives device 140, voltage regulator circuit 180, power supply circuit board 190 and is all set in main body.Further, each attenuator, the first protection
Eyeglass 60 and the second protection eyeglass 70 are coaxial.
As shown in fig. 6, for laser optical path transimiison analysis figure in one embodiment.Laser emitter 110 is by power supply circuit board
Power supply, launches the laser of 915nm wavelength, the laser of 90 ° of reflecting optics reflections 10%, then by multiple attenuators filter laser to
The laser magnitude that can be measured up to photodiode.Laser energy variation is converted to analog quantity current value, mould by photodiode
Analog quantity is converted to the signal of digital quantity and is sent on information output apparatus 170 via free-port communication by number conversion circuit,
Information output apparatus 170 calculates light transmittance and display transparent rate.Work and operating process are as follows:
It turns on the power switch, open out photoswitch, the initial value I0 that record photodiode measures；Sample to be tested is placed
Immediately below laser, the value It that record photodiode currently measures；Information output apparatus 170 receives light transmittance computations,
It calculates It/I0 to obtain light transmittance values T and show, is completed, disconnects out photoswitch.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
The limitation to utility model patent range therefore cannot be interpreted as.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of this application, various modifications and improvements can be made, these belong to the application's
Protection scope.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of sample transmittance test equipment, which is characterized in that including laser emitter, damping assemblies, laser detector and
Information output apparatus, the damping assemblies and the laser detector along the direction of propagation of the laser transmitter projects laser according to
Secondary setting, and the laser detector connects the information output apparatus；
For placing sample between the damping assemblies and the laser detector, the laser detector is for measuring not
Place corresponding first electric signal of received laser when the sample and measurement place it is received when the sample
Corresponding second electric signal of laser is simultaneously sent to the information output apparatus, and the information output apparatus exports first telecommunications
Number light transmittance corresponding with second electric signal.
2. sample transmittance test equipment according to claim 1, which is characterized in that the damping assemblies include multiple decline
Subtract piece, multiple attenuators are arranged along the direction of propagation of the laser transmitter projects laser.
3. sample transmittance test equipment according to claim 2, which is characterized in that it further include reflecting mirror, the laser
The laser of transmitter transmitting passes perpendicularly through the attenuator after reflecting mirror reflection.
4. sample transmittance test equipment according to claim 3, which is characterized in that it further include laser energy absorption device,
The laser energy absorption device is set to the opposite side of the reflecting mirror reflection laser.
5. sample transmittance test equipment according to claim 1, which is characterized in that the laser detector includes photosensitive
Diode and analog to digital conversion circuit, analog-digital conversion circuit as described connect the photodiode and the information output apparatus.
6. sample transmittance test equipment according to claim 1, which is characterized in that the information output apparatus includes place
Device and display screen are managed, the processor connects the laser detector and the display screen；
The processor receives first electric signal and second electric signal obtains corresponding light transmittance, and sends for controlling
It makes the display screen and exports the control signal of the light transmittance to the display screen.
7. sample transmittance test equipment according to claim 1, which is characterized in that further include connecting the Laser emission
The voltage regulator circuit of device and the laser detector, the voltage regulator circuit access external voltage and export direct current to institute
State laser emitter and the laser detector.
8. sample transmittance test equipment according to claim 7, which is characterized in that it further include tabilized current power supply, it is described
Voltage regulator circuit connects the laser emitter by the tabilized current power supply.
9. sample transmittance test equipment according to claim 7, which is characterized in that further include power switch and/or go out
Photoswitch；
The voltage regulator circuit accesses external voltage by the power switch, and the voltage regulator circuit passes through the light out
Switch connects the laser emitter.
10. sample transmittance test equipment according to claim 1 to 9, which is characterized in that further include main body,
First protection eyeglass and the second protection eyeglass；
The main body includes the first framework and second framework being oppositely arranged, and first framework offers and first protection
Matched first groove of eyeglass, the first protection eyeglass Matching installation is in first groove；The second framework offers
With the second protection eyeglass matching and second groove opposite with first groove location, the second protection eyeglass matching
It is installed on second groove；
The laser emitter and the damping assemblies are set in the first framework and the damping assemblies and described first are protected
Eyeglass is oppositely arranged, and the laser detector is set in the second framework and the laser detector and described second is protected
Protecting lens are oppositely arranged, and the information output apparatus is installed on first framework/second framework.
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| CN201920183958.7U CN209727763U (en) | 2019-01-31 | 2019-01-31 | Sample transmittance test equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920183958.7U CN209727763U (en) | 2019-01-31 | 2019-01-31 | Sample transmittance test equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118624532A (en) * | 2024-08-09 | 2024-09-10 | 成都莱普科技股份有限公司 | Method and device for measuring laser transmission power, electronic equipment and storage medium |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118624532A (en) * | 2024-08-09 | 2024-09-10 | 成都莱普科技股份有限公司 | Method and device for measuring laser transmission power, electronic equipment and storage medium |
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