CN114674401A - Weight test equipment - Google Patents
Weight test equipment Download PDFInfo
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- CN114674401A CN114674401A CN202210301031.5A CN202210301031A CN114674401A CN 114674401 A CN114674401 A CN 114674401A CN 202210301031 A CN202210301031 A CN 202210301031A CN 114674401 A CN114674401 A CN 114674401A
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- emitting unit
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- light emitting
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000005259 measurement Methods 0.000 claims abstract description 17
- 238000005286 illumination Methods 0.000 claims abstract description 7
- 238000004020 luminiscence type Methods 0.000 claims description 8
- 238000005538 encapsulation Methods 0.000 claims description 5
- 239000004020 conductor Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 230000005489 elastic deformation Effects 0.000 abstract description 5
- 239000010410 layer Substances 0.000 description 30
- 239000000463 material Substances 0.000 description 8
- 230000000875 corresponding effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 1
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 230000005483 Hooke's law Effects 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005525 hole transport Effects 0.000 description 1
- 239000005001 laminate film Substances 0.000 description 1
- SJCKRGFTWFGHGZ-UHFFFAOYSA-N magnesium silver Chemical compound [Mg].[Ag] SJCKRGFTWFGHGZ-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/125—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing wherein the weighing element is an optical member
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention provides a weight testing device. The weight test equipment comprises: an opaque housing; the bearing piece is used for bearing an object to be weighed; the two ends of the elastic element are respectively connected with the bearing piece and the shell, wherein the elastic element generates elastic deformation when an object is positioned on the bearing piece; a light emitting unit configured to maintain a light emitting state during weight measurement; the photosensitive element is used for detecting the illumination intensity of the area where the light emitted by the light-emitting unit irradiates the photosensitive element; and the control unit is electrically connected with the photosensitive element and is used for detecting the current passing through the photosensitive element and outputting a weight measurement result according to the current. The technical scheme of the embodiment of the invention can realize the measurement of the weight of the object and simultaneously meet the use requirement of a specific scene.
Description
Technical Field
The embodiment of the invention relates to the technical field of measurement, in particular to weight testing equipment.
Background
Under multiple scenes such as work, scientific research and the like, the weight of an object may need to be measured, the existing measuring equipment usually drives a pointer to move based on the elastic deformation degree of an elastic element, and detects the weight based on a lever principle or by utilizing modes such as a pressure sensor and the like, however, different weight testing equipment has respective limitations, and under some specific scenes, the weight measuring requirements of the object are difficult to meet.
Disclosure of Invention
The embodiment of the invention provides weight testing equipment, which is used for meeting the weight testing requirement under a specific scene.
In order to solve the problems, the invention is realized as follows:
an embodiment of the present invention provides a weight test apparatus, including:
an opaque housing;
the bearing piece is used for bearing an object to be weighed;
the two ends of the elastic element are respectively connected with the bearing piece and the shell, and the elastic element is elastically deformed when an object is positioned on the bearing piece;
a light emitting unit configured to maintain a light emitting state during weight measurement;
the photosensitive element is used for detecting the illumination intensity of the area where the light emitted by the light-emitting unit irradiates to the photosensitive element;
the control unit is electrically connected with the photosensitive element and used for detecting the current passing through the photosensitive element and outputting a weight measurement result according to the current;
wherein, the luminescence unit with photosensitive element all sets up in the casing, the luminescence unit with one of photosensitive element with it is fixed mutually to hold carrier, the luminescence unit is in orthographic projection on the photosensitive element with photosensitive element's overlapping area with elastic element's deformation size positive correlation.
In some embodiments, the light emitting units and the photosensitive elements are both strip-shaped structures, and the light emitting units and the photosensitive elements are arranged in parallel and staggered mode.
In some embodiments, the weight test apparatus further comprises a light shielding portion between the light emitting unit and the photosensitive element.
In some embodiments, the light emitting unit is fixed in the housing, and the light sensing element is fixedly connected to the bearing member, wherein in an initial position, a lower side edge of the light sensing element is aligned with a lower side edge of the light shielding portion, and the initial position is a position where the bearing member is located when no object is carried on the bearing member.
In some embodiments, the light sensing element is disposed in the housing, the light emitting unit is fixedly connected to the carrier, and the light emitting unit is powered by a power supply component fixed to the carrier, wherein in an initial position, a lower edge of the light emitting unit is aligned with a lower edge of the light blocking portion, and the initial position is a position where the carrier is located when no object is carried on the carrier.
In some embodiments, the light emitting unit is a top emission type self-light emitting unit including a substrate, a first electrode layer, an organic light emitting layer, a second electrode layer, and an encapsulation layer, which are sequentially stacked.
In some embodiments, the light emitting unit comprises a red light emitting unit.
In some embodiments, the photosensitive element includes a first polar plate, a photoresistor layer, and a second polar plate, which are sequentially stacked, and the first polar plate and the second polar plate are respectively electrically connected to the control unit, wherein the first polar plate close to the light emitting unit includes a transparent conductive material.
In some embodiments, the weight measuring apparatus further includes a transparent spacer disposed between the light emitting unit and the light sensing element to separate the light emitting unit and the light sensing element.
In some embodiments, the weighing device further comprises a display component, the display component is electrically connected with the control unit, and the display component is used for displaying the weighing result output by the control unit.
In the technical scheme of the embodiment of the invention, when the object to be measured is placed on the bearing piece, the elastic element can send elastic deformation to drive one of the light-emitting unit and the photosensitive element fixed on the bearing piece to move, so that the corresponding area between the light-emitting unit and the photosensitive element can be adjusted, and thus, the photosensitive element can cause the current passing through the photosensitive element to change due to the change of illumination intensity, and the weight measurement of the object to be measured can be realized by detecting the current in the photosensitive element. The technical scheme of the embodiment of the invention can realize the measurement of the weight of the object and simultaneously meet the use requirement of a specific scene.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a weight measuring apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the operation of the weight measuring apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a light-emitting unit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an organic light emitting layer according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides weight testing equipment.
As shown in fig. 1, in some embodiments, the weight test apparatus includes a housing 110, a carrier 120, an elastic member 130, a light emitting unit 140, a photosensitive member 150, and a control unit.
In the technical solution of this embodiment, the housing 110 is made of an opaque material, the housing 110 is mainly used for accommodating the light emitting unit 140 and the photosensitive element 150, so as to avoid interference of external light to the light emitting unit 140 and the photosensitive element 150, and other structures may be disposed inside the housing 110 or outside the housing 110 as required.
The carrier 120 may be a carrying platform, a carrying hook, a carrying basket, etc. to accommodate the object to be weighed during the weighing process. The supporting member 120 is connected to the elastic element 130, and two ends of the elastic element 130 are respectively connected to the supporting member 120 and the casing 110, wherein the elastic element 130 may be a spring, a spring plate, a torsion spring, or other elastic elements 130, the number of the elastic elements 130 may be one or more, and the elastic elements 130 are elastically deformed when an object is located on the supporting member 120.
It should be understood that the magnitude of the force applied to the elastic element 130 and its elastic deformation satisfy hooke's law within a certain range, i.e., there is a linear relationship between the stress and strain (unit deformation) in the material. The unit of elongation or contraction is proportional to the tension or compression force, wherein the proportional coefficient is the elastic modulus E, and in the case of a spring, the elastic force F given to an object by the spring is linearly related to the length change Δ x, which is denoted as F ═ k ×, Δ x, where k is the elastic constant of the spring.
When an object to be weighed is carried on the carrier 120, the carrier 120 compresses the elastic element 130, so that the position of the elastic element 130 is changed.
In this embodiment, a light emitting unit 140 and a photosensitive element 150 are further provided, wherein the light emitting unit 140 is configured to maintain a light emitting state during the weight measurement, and the photosensitive element 150 is used to detect the illumination intensity of the area where the light emitted from the light emitting unit 140 is irradiated to the photosensitive element 150.
Specifically, the light emitting unit 140 and the photosensitive element 150 are both disposed in the housing 110, one of the light emitting unit 140 and the photosensitive element 150 is fixed to the carrier 120, and an orthogonal projection of the light emitting unit 140 on the photosensitive element 150 and an overlapping area of the photosensitive element 150 are positively correlated to a deformation size of the elastic element 130.
In some embodiments, the light emitting units 140 and the light sensing elements 150 are both in a stripe structure, and the light emitting units 140 and the light sensing elements 150 are arranged in parallel and staggered, so that when one of the light emitting units is fixed and the other light sensing unit is moved, the overlapping area of the light emitting units 140 and the light sensing elements 150 can be changed.
Obviously, the shapes of the light emitting unit 140 and the light sensing element 150 can be adjusted according to the needs, and are not further limited herein.
In the present embodiment, the photosensitive element 150 is fixedly disposed in the housing 110, and the light-emitting unit 140 is fixed on the carrier 120 for illustration, it should be understood that the positions of the two can be interchanged, and the disclosure is not limited herein.
Referring to fig. 1 and fig. 2, when objects with different weights are carried on the carrying element 120, the elastic element 130 can be compressed, and the position of the carrying element 120 can be changed while the elastic element 130 is compressed, and accordingly, the carrying element 120 can drive the position of the light emitting unit 140 fixed on the carrying element 120 to be changed.
When the light emitting unit 140 moves along with the carrier 120, the coverage area of the light emitted by the light emitting unit 140 also changes, and thus, the intensity of the light detected by the fixedly disposed light sensing element 150 also changes accordingly.
In other embodiments, when the photosensitive element 150 is fixed on the carrier 120, the light emitting unit 140 is fixed in the housing 110, the range covered by the light emitted by the light emitting unit 140 is fixed, and the photosensitive element 150 can detect the light intensities in different areas and can also detect the light intensities with different brightness when the photosensitive element 150 moves.
In some embodiments, the weight measuring apparatus further includes a light shielding portion 160, the light shielding portion 160 is located between the light emitting unit 140 and the photosensitive element 150, and the light shielding portion 160 is used for adjusting a ratio of the light emitted from the light emitting unit 140 to the position of the photosensitive element 150.
In some embodiments, the light emitting unit 140 is fixed in the housing 110, and the light sensing element 150 is fixedly connected to the carrier 120. In this embodiment, the light shielding portion 160 may be a light shielding plate, and the light shielding plate is attached to the surface of the photosensitive element 150, so that the light shielding plate can shield the surface of the photosensitive element 150.
In the initial position, the lower side edge of the photosensitive element 150 is aligned with the lower side edge of the light shielding portion 160, and the initial position is the position where the carrier 120 is located when no object is carried on the carrier 120, that is, when no object is placed on the carrier 120, the bottom of the light shielding plate is exactly aligned with the bottom of the photosensitive element 150, so that if an object is placed on the carrier 120 and the elastic element 130 is compressed, the position of the photosensitive element 150 relative to the light shielding plate changes, so that the photosensitive element 150 is exposed to the irradiation range of the light emitting unit 140, and the detection of the weight of the object can be realized by measuring the current on the photosensitive element 150.
In other embodiments, the light sensing element 150 is disposed in the housing 110, the light emitting unit 140 is fixedly connected to the carrier 120, and the light emitting unit 140 is powered by a power supply component fixed to the carrier 120.
In some embodiments, the light emitting unit 140 and the light sensing element 150 may be powered by the same power supply component, and in some embodiments, the light emitting unit 140 and the light sensing element 150 may be powered by different power supply components, so that physical contact between the structures can be reduced, and mutual interference between the structures can be avoided.
In this embodiment, in the initial position, the lower edge of the light emitting unit 140 is aligned with the lower edge of the light shielding portion 160, and the initial position is the position of the carrier 120 when no object is carried on the carrier 120. Similar to the above process, when no article is disposed on the supporting member 120, the light shielding plate can shield the light emitted from the light emitting unit 140, and when an article is disposed on the supporting member 120 and the elastic element 130 is compressed, the light emitting unit 140 can move relative to the light shielding plate, so that the light can irradiate the photosensitive element 150, thereby detecting the weight of the object.
The control unit is electrically connected to the light sensing element 150, the control unit is configured to detect a current passing through the light sensing element 150 and output a weight measurement result according to the current, and the control unit may specifically include a test element such as an ammeter.
Specifically, it is exemplarily illustrated that the resistance of the photosensitive element 150 decreases with the increase of the illumination intensity, when the two ends of the photosensitive element 150 are connected to a fixed voltage, the resistance of the photosensitive element 150 changes with the change of the relative position of the photosensitive element 150 and the light emitting unit 140, so that the current passing through the photosensitive element 150 changes, and the current passing through the photosensitive element 150 is detected by the current meter, so as to determine the weight of the object to be measured on the bearing member 120.
In practice, a plurality of objects with different standard weights may be placed on the supporting member 120, and then the corresponding currents are detected, and then the corresponding relationship between the currents and the weights of the objects is fitted according to the currents corresponding to the objects with the standard weights, so that the weights of the objects to be weighed can be determined according to the corresponding relationship in the detection process.
In some embodiments, the weight testing apparatus further includes a display component 170, the display component 170 is electrically connected to the control unit, and the display component 170 is configured to display the weight measurement result output by the control unit.
As shown in fig. 3, in some embodiments, the light emitting unit 140 is a top emission type self light emitting unit 140, and the light emitting unit 140 includes a substrate 141, a first electrode layer 141, an organic light emitting layer 142, a second electrode layer 142, and an encapsulation layer 143, which are sequentially stacked. The first electrode layer 141 is used as an anode of the light emitting unit 140, and may be made of a material such as silver, indium tin oxide, or a composite material of silver and indium tin oxide, and the second electrode layer 142 is used as a cathode of the light emitting unit 140, and may be made of a material such as aluminum, silver, magnesium-silver alloy, or the like.
As shown in fig. 4, more specifically, the organic light emitting layer 142 may include a hole injection layer 1421, a hole transport layer 1422, an organic layer 1423, an electron injection layer 1424, and the like, which are sequentially stacked in a direction from the first electrode layer 141 to the second electrode layer 142. It is understood that the light emitting unit 140 may be provided with other film layers and structures, such as an electron blocking layer, a buffer layer, etc., as needed, and is not further limited and described herein.
The encapsulation layer 143 encapsulates the first electrode layer 141, the organic light emitting layer 142, and the second electrode layer 142 to prevent water and oxygen from corroding. The packaging mode can be a rigid glass packaging mode or a flexible film packaging mode. The material used for encapsulation may be a laminate film of glass frit and glass, polymer and inorganic film, among others. The inorganic film may be a silicon oxynitride film and is not further described or limited herein.
In some embodiments, the light emitting unit 140 includes a red light emitting unit 140, which has high brightness and relatively small attenuation, and helps to improve and maintain measurement accuracy.
In some embodiments, the photosensitive element 150 includes a first plate, a photoresistor layer, and a second plate, which are sequentially stacked and electrically connected to the control unit, wherein the first plate near the light emitting unit 140 includes a transparent conductive material, and specifically, indium tin oxide, zinc oxide, and the like may be selected.
The photoresistor layer has a function of photoelectric signal conversion, and can be made of semiconductor materials such as cadmium sulfide or cadmium selenide. The second electrode layer 142 may be made of the same material as the first electrode layer 141, or may be made of other materials, for example, indium tin oxide, silver, or the like may be used.
In some embodiments, the weight test apparatus further includes a transparent spacer disposed between the light emitting unit 140 and the light sensing element 150 to separate the light emitting unit 140 and the light sensing element 150.
Through setting up transparent baffle, can set up luminescence unit 140 and photosensitive element 150 in different positions, avoid having physical entity contact between the region at luminescence unit 140 and photosensitive element 150 place to satisfy the weight test demand under the different environment.
For example, in one embodiment, an electromagnetic shielding layer may be disposed on the transparent partition, so that when a weight test is performed in an electromagnetic environment on the side of the carrier 120, the side of the transparent partition away from the carrier 120 is not interfered by the electromagnetic environment, and the measurement accuracy can be improved.
For another example, if a dangerous chemical or the like needs to be tested, the transparent partition plate can seal the portion of the carrier 120, so as to avoid the interference and damage of the external environment caused by the position of the object.
In the technical solution of the embodiment of the present invention, when an object to be measured is placed on the supporting member 120, the elastic element 130 is made to transmit elastic deformation, and then one of the light emitting unit 140 and the photosensitive element 150 fixed on the supporting member 120 is driven to move, so as to adjust the corresponding area between the light emitting unit 140 and the photosensitive element 150, and thus, the photosensitive element 150 may cause a current passing through the photosensitive element 150 to change due to a change in illumination intensity, and the weight measurement of the object to be measured can be achieved by detecting the current in the photosensitive element 150. The technical scheme of the embodiment of the invention can realize the measurement of the weight of the object and simultaneously meet the use requirement of a specific scene.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A weight testing apparatus, comprising:
an opaque housing;
the bearing piece is used for bearing an object to be weighed;
the two ends of the elastic element are respectively connected with the bearing piece and the shell, wherein the elastic element is elastically deformed when an object is positioned on the bearing piece;
a light emitting unit configured to maintain a light emitting state during weight measurement;
the photosensitive element is used for detecting the illumination intensity of the area where the light emitted by the light-emitting unit irradiates to the photosensitive element;
the control unit is electrically connected with the photosensitive element and used for detecting the current passing through the photosensitive element and outputting a weight measurement result according to the current;
wherein, the luminescence unit with photosensitive element all sets up in the casing, the luminescence unit with one of photosensitive element with it is fixed mutually to hold carrier, the luminescence unit is in orthographic projection on the photosensitive element with photosensitive element's overlapping area with elastic element's deformation size positive correlation.
2. The weight-measuring device of claim 1, wherein the light-emitting units and the light-sensing elements are both strip-shaped structures, and the light-emitting units and the light-sensing elements are arranged in parallel and staggered.
3. The weight-testing apparatus of claim 1, further comprising a light-shielding portion between the light-emitting unit and the light-sensing element.
4. The weight-testing apparatus of claim 3, wherein the light-emitting unit is fixed in the housing, and the photosensitive element is fixedly connected to the carrier, wherein in an initial position, a lower edge of the photosensitive element is aligned with a lower edge of the light-blocking portion, and the initial position is a position of the carrier when no object is carried on the carrier.
5. The weight-measuring apparatus according to claim 3, wherein the light-sensing element is provided in the housing, the light-emitting unit is fixedly connected to the carrier, and the light-emitting unit is powered by a power supply assembly fixed to the carrier, wherein, in an initial position, a lower side edge of the light-emitting unit is aligned with a lower side edge of the light-shielding portion, and the initial position is a position where the carrier is located when no object is carried on the carrier.
6. The weight test apparatus according to any one of claims 1 to 5, wherein the light emitting unit is a self-light emitting unit of a top emission type, the light emitting unit including a substrate, a first electrode layer, an organic light emitting layer, a second electrode layer, and an encapsulation layer, which are sequentially stacked.
7. The weight-testing apparatus of claim 6, wherein the light-emitting unit includes a red light-emitting unit.
8. The weight test apparatus of any one of claims 1 to 5, wherein the photosensitive element comprises a first plate, a photoresistor layer, and a second plate, which are sequentially stacked, and electrically connected to the control unit, respectively, wherein the first plate adjacent to the light emitting unit comprises a transparent conductive material.
9. The weight-testing apparatus of claim 1, further comprising a transparent spacer disposed between the light-emitting unit and the light-sensing element to separate the light-emitting unit and the light-sensing element.
10. The weight-testing apparatus of claim 1, further comprising a display assembly electrically connected to the control unit, the display assembly for displaying the weight-measuring results output by the control unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210301031.5A CN114674401B (en) | 2022-03-24 | 2022-03-24 | Weight test equipment |
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| CN202210301031.5A CN114674401B (en) | 2022-03-24 | 2022-03-24 | Weight test equipment |
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| CN109802047A (en) * | 2018-12-29 | 2019-05-24 | 香港大学深圳研究院 | A kind of organic luminescent device and preparation method thereof based on infrared band |
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