CN115655440B - Precision detection equipment for laboratory instrument weighing - Google Patents
Precision detection equipment for laboratory instrument weighing Download PDFInfo
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- CN115655440B CN115655440B CN202211570257.1A CN202211570257A CN115655440B CN 115655440 B CN115655440 B CN 115655440B CN 202211570257 A CN202211570257 A CN 202211570257A CN 115655440 B CN115655440 B CN 115655440B
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Abstract
The invention belongs to the technical field of precision detection for laboratory instrument weighing, and particularly relates to precision detection equipment for laboratory instrument weighing, which comprises a detection main body, a humidity change sensitivity detection mechanism, a comparison type precision detection mechanism and an unoositioning equal weight bearing surface sensitivity detection mechanism, wherein the comparison type precision detection mechanism is arranged in the detection main body; the invention provides a contrast type accuracy detection mechanism, which can detect the accuracy of an electronic scale in the horizontal aspect by mutually matching a balance self-adjusting detection component and a dynamic fixing component.
Description
Technical Field
The invention belongs to the technical field of precision detection for laboratory instrument weighing, and particularly relates to precision detection equipment for laboratory instrument weighing.
Background
Electronic scales are instruments commonly used in laboratories. The electronic scale weighs things, and the uneven and symmetrical weight of the electronic scale is influenced. Because the electronic scale measures the weight of an object through the sensor, and the sensor is arranged inside the electronic scale, if the four feet of the electronic scale are stressed unevenly, the sensor of the electronic scale is in error, and no equipment for detecting the accuracy of the laboratory electronic scale exists at present.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides accuracy detection equipment for weighing laboratory instruments, and aims to solve the problems that the sensor detects the weight of an object through the sensor, and if the sensor is arranged in the electronic scale and the four feet of the electronic scale are stressed unevenly, the sensor of the electronic scale is in error, and no equipment for detecting the accuracy of the laboratory electronic scale exists at present.
The technical scheme adopted by the invention is as follows: the invention provides precision detection equipment for laboratory instrument weighing, which comprises a detection main body, a humidity change sensitivity detection mechanism, a comparison type precision detection mechanism and an unoositioning equal weight bearing surface sensitivity detection mechanism, wherein the comparison type precision detection mechanism is arranged in the detection main body; the contrast type accuracy detection mechanism comprises a balance self-adjusting detection component and a dynamic type fixing component, wherein the balance self-adjusting detection component is arranged in the detection main body, and the dynamic type fixing component is arranged at the lower end of the balance self-adjusting detection component.
Further, the detection main body comprises a detection frame, supporting legs, a dustproof shell and a switch door, wherein the supporting legs are arranged at the lower end of the detection main body, the detection frame is arranged at the upper end of the supporting legs, the dustproof shell is arranged at the upper end of the detection frame, and the switch door is arranged on the dustproof shell in an opening and closing mode.
Further, the balance self-adjusting detection assembly comprises a detection plate, a first detection ring, a second detection ring, a first rotation shaft and a second rotation shaft, wherein the second detection ring is arranged in the non-positioning equal weight bearing surface sensitivity detection mechanism, one end of the second rotation shaft is rotationally arranged on an inner ring of the second detection ring, an outer ring of the first detection ring is arranged at the other end of the second rotation shaft, one end of the first rotation shaft is rotationally arranged on the inner ring of the first detection ring, and the outer side of the detection plate is rotationally arranged at the other end of the first rotation shaft.
Further, the dynamic fixing component comprises a first connecting rod, a gravity ball, a transverse supporting frame, a hemispherical cavity, electrorheological fluid and a fixed grapple, wherein one end of the first connecting rod is arranged at the lower end of the detection plate, the gravity ball is arranged at the lower end of the first connecting rod, the transverse supporting frame is arranged on the side wall of the supporting foot, the hemispherical cavity is arranged at the other end of the transverse supporting frame, the electrorheological fluid is arranged in the hemispherical cavity in a replaceable manner, and the fixed grapple is arranged on the outer wall of the gravity ball.
Further, the non-positioning equal-weight bearing surface sensitivity detection mechanism comprises a horizontal moving assembly, a separated inner rotating assembly and an anti-collision assembly, wherein the horizontal moving assembly is arranged at the upper end of the inside of the dustproof shell, the separated inner rotating assembly is arranged in the dustproof shell, and the anti-collision assembly is arranged on the horizontal moving assembly.
Further, the horizontal movement assembly comprises a first motor, a screw rod, a bearing, a sleeve and an equipment rack, wherein the equipment rack is arranged at the upper end of the inner part of the dustproof shell, the first motor is arranged at the outer side of one end of the equipment rack, the bearing is arranged at the other end of the inner part of the equipment rack, one end of the screw rod is arranged on the bearing, the other end of the screw rod is arranged at the output end of the first motor, the sleeve is sleeved on the screw rod, and the sleeve is in threaded connection with the screw rod.
Further, the separated inner rotating assembly comprises an annular groove, a second motor, a gear, a tooth block, a sliding block and a second connecting rod, the second connecting rod is arranged on the inner side wall of the dustproof shell, the second motor is arranged at the other end of the second connecting rod, the gear is arranged at the output end of the second motor, the annular groove is arranged in the detection frame, one end of the sliding block is slidably arranged in the annular groove, the other end of the sliding block is arranged on the outer ring of the second detection ring, and the annular array of the tooth block is arranged on the outer ring of the second detection ring.
Further, the anti-collision assembly comprises a weight, a connecting wire and a lifting cylinder, wherein the lifting cylinder is arranged at the lower end of the bearing, one end of the connecting wire is arranged at the output end of the lifting cylinder, and the weight is arranged at the other end of the connecting wire.
Further, the humidity change sensitivity detection mechanism comprises a first heating wire, a second heating wire, a first fan, a second fan, a first air flow guide block and a second air flow guide block, wherein the first fan is arranged on the side wall of the dustproof shell, the second fan is arranged on the other side wall of the dustproof shell, the second heating wire is arranged on one side of the first fan, the first heating wire is arranged on one side of the second fan, the first air flow guide block is arranged on one side of the inside of the dustproof shell, the second air flow guide block is arranged on the other side of the inside of the dustproof shell, and the second air flow guide block is arranged on the other side of the first air flow guide block in a central symmetry mode.
Further, the electrorheological fluid is externally connected with a power supply.
The beneficial effects obtained by the invention by adopting the structure are as follows: the invention provides accuracy detection equipment for laboratory instrument weighing, which has the following beneficial effects:
(1) In order to detect the accuracy of the electronic scale in the horizontal aspect, the invention provides a comparison type accuracy detection mechanism which can be used for comparing and detecting the accuracy of a laboratory weighing instrument in a horizontal state and in a working environment through the mutual matching of a balance self-adjusting detection component and a dynamic fixing component.
(2) In order to further improve practicality and generalizability, the invention provides an unequal-weight bearing surface sensitivity detection mechanism, which can detect the accuracy of weights in different weighing parts of a laboratory weighing instrument through the mutual matching of a horizontal moving assembly, a separated inner rotating assembly and an anti-collision assembly.
(3) The fixed grapple guarantees the stability of pick-up plate when fixed.
(4) The arrangement of the air flow guide block can lead the drying in the dustproof shell to be more uniform.
(5) The humidity change sensitivity detection mechanism is arranged, and air swirling flow is formed in the dustproof shell to dry the laboratory weighing instrument, so that the influence of the humidity of the working environment on the accuracy of the laboratory weighing instrument is compared.
Drawings
FIG. 1 is a front view of a precision testing apparatus for laboratory instrument weighing according to the present invention;
FIG. 2 is a front cross-sectional view of an accuracy testing device for laboratory instrument weighing according to the present invention;
FIG. 3 is a left side view of a precision testing apparatus for laboratory instrument weighing according to the present invention;
FIG. 4 is a right side view of a precision measurement apparatus for laboratory instrument weighing according to the present invention;
FIG. 5 is a schematic diagram of a structure of a detection frame;
FIG. 6 is a schematic view of a gravity ball structure;
FIG. 7 is a top cross-sectional view of the dust cap;
FIG. 8 is an enlarged partial view of portion A of FIG. 2;
fig. 9 is a partial enlarged view of a portion B in fig. 2.
The device comprises a detection main body 1, a comparison type precision detection mechanism 2, a weight bearing surface sensitivity detection mechanism such as non-positioning detection mechanism 3, a humidity change sensitivity detection mechanism 4, a support leg 6, a detection frame 7, a dustproof shell 8, a switch door 9, a balance self-adjusting detection component 10, a dynamic fixing component 11, a detection plate 12, a detection ring I, a detection ring II, 14, a rotation shaft I, 15, a rotation shaft II, 16, a connection rod I, 17, a gravity ball 18, a transverse support frame 19, a hemispherical cavity body 20, electrorheological fluid 21, a fixed grapple, 22, a horizontal movement component 23, a divided inner rotation component 24, an anti-collision component 25, a motor I, 26, a lead screw 27, a bearing, 28, a sleeve, 29, an annular groove 30, a motor II, 31, a gear 32, a tooth block 33, a slide block 34, a connection rod II, 35, a weight, 36, a connection wire 37, a lifting cylinder 38, a heating wire I, 39, a heating wire II, 40, a fan I, 41, a fan II, a guide block 42, a guide block II and a guide frame 44.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1 to 9, the invention provides an accuracy detection device for weighing laboratory instruments, which comprises a detection main body 1, a humidity change sensitivity detection mechanism 4, a comparison type accuracy detection mechanism 2 and an unoositioned equal weight bearing surface sensitivity detection mechanism 3, wherein the comparison type accuracy detection mechanism 2 is arranged in the detection main body 1, the unoositioned equal weight bearing surface sensitivity detection mechanism 3 is arranged in the detection main body 1, and the humidity change sensitivity detection mechanism 4 is arranged on the side wall of the detection main body 1; the contrast type accuracy detecting mechanism 2 comprises a balance self-adjusting detecting component 9 and a dynamic type fixing component 10, wherein the balance self-adjusting detecting component 9 is arranged in the detecting main body 1, and the dynamic type fixing component 10 is arranged at the lower end of the balance self-adjusting detecting component 9.
The detection main body 1 comprises a detection frame 6, a support foot 5, a dustproof shell 7 and a switch door 8, wherein the support foot 5 is arranged at the lower end of the detection main body 1, the detection frame 6 is arranged at the upper end of the support foot 5, the dustproof shell 7 is arranged at the upper end of the detection frame 6, and the switch door 8 is arranged on the dustproof shell 7 in an opening and closing mode.
The non-positioning and other weight bearing surface sensitivity detection mechanism 3 comprises a horizontal movement assembly 22, a separated inner rotation assembly 23 and an anti-collision assembly 24, wherein the horizontal movement assembly 22 is arranged at the upper end of the inside of the dustproof shell 7, the separated inner rotation assembly 23 is arranged in the dustproof shell 7, and the anti-collision assembly 24 is arranged on the horizontal movement assembly 22.
The horizontal movement assembly 22 comprises a first motor 25, a screw rod 26, a bearing 27, a sleeve 28 and an equipment rack 44, the equipment rack 44 is arranged at the upper end of the inner part of the dustproof shell 7, the first motor 25 is arranged at the outer side of one end of the equipment rack 44, the bearing 27 is arranged at the other end of the inner part of the equipment rack 44, one end of the screw rod 26 is arranged on the bearing 27, the other end of the screw rod 26 is arranged at the output end of the first motor 25, the sleeve 28 is sleeved on the screw rod 26, and the sleeve 28 is in threaded connection with the screw rod 26.
The separated inner rotating assembly 23 comprises an annular groove 29, a second motor 30, a gear 31, a tooth block 32, a sliding block 33 and a second connecting rod 34, wherein the second connecting rod 34 is arranged on the inner side wall of the dust-proof shell 7, the second motor 30 is arranged at the other end of the second connecting rod 34, the gear 31 is arranged at the output end of the second motor 30, the annular groove 29 is arranged in the detection frame 6, one end of the sliding block 33 is slidably arranged in the annular groove 29, the other end of the sliding block 33 is arranged on the outer ring of the second detection ring 13, and the annular array of the tooth blocks 32 is arranged on the outer ring of the second detection ring 13.
The anti-collision assembly 24 comprises a weight 35, a connecting wire 36 and a lifting cylinder 37, wherein the lifting cylinder 37 is arranged at the lower end of the bearing 27, one end of the connecting wire 36 is arranged at the output end of the lifting cylinder 37, and the weight 35 is arranged at the other end of the connecting wire 36.
The humidity change sensitivity detection mechanism 4 comprises a first heating wire 38, a second heating wire 39, a first fan 40, a second fan 41, a first airflow guide block 42 and a second airflow guide block 43, wherein the first fan 40 is arranged on the side wall of the dustproof shell 7, the second fan 41 is arranged on the other side wall of the dustproof shell 7, the second heating wire 39 is arranged on one side of the first fan 40, the first heating wire 38 is arranged on one side of the second fan 41, the first airflow guide block 42 is arranged on one side of the inside of the dustproof shell 7, the second airflow guide block 43 is arranged on the other side of the inside of the dustproof shell 7, and the second airflow guide block 43 is arranged on the other side of the first airflow guide block 42 in a central symmetry manner.
The electrorheological fluid 20 is externally connected with a power supply.
The balance self-adjusting detection assembly 9 comprises a detection plate 11, a first detection ring 12, a second detection ring 13, a first rotation shaft 14 and a second rotation shaft 15, wherein the second detection ring 13 is arranged in the non-positioning equal weight bearing surface sensitivity detection mechanism 3, one end of the second rotation shaft 15 is rotatably arranged on the inner ring of the second detection ring 13, the outer ring of the first detection ring 12 is arranged at the other end of the second rotation shaft 15, one end of the first rotation shaft 14 is rotatably arranged on the inner ring of the first detection ring 12, and the outer side of the detection plate 11 is rotatably arranged at the other end of the first rotation shaft 14.
The dynamic fixing assembly 10 comprises a first connecting rod 16, a gravity ball 17, a transverse supporting frame 18, a hemispherical cavity 19, electrorheological fluid 20 and a fixed grapple 21, wherein one end of the first connecting rod 16 is arranged at the lower end of the detection plate 11, the gravity ball 17 is arranged at the lower end of the first connecting rod 16, the transverse supporting frame 18 is arranged on the side wall of the supporting foot 5, the hemispherical cavity 19 is arranged at the other end of the transverse supporting frame 18, the electrorheological fluid 20 is arranged in the hemispherical cavity 19 in a replaceable manner, and the fixed grapple 21 is arranged on the outer wall of the gravity ball 17.
The non-positioning and other weight bearing surface sensitivity detection mechanism 3 comprises a horizontal movement assembly 22, a separated inner rotation assembly 23 and an anti-collision assembly 24, wherein the horizontal movement assembly 22 is arranged at the upper end of the inside of the dustproof shell 7, the separated inner rotation assembly 23 is arranged in the dustproof shell 7, and the anti-collision assembly 24 is arranged on the horizontal movement assembly 22.
When the device is specifically used, firstly, a laboratory weighing instrument firstly weighs the weight of an object, a numerical value is recorded, then, a detection main body 1 is placed on a laboratory table, a detection plate 11 is kept in a horizontal state under the gravity action of a dynamic fixing component 10 and a gravity ball 17, a first detection ring 12 is used for adjusting front-back balance when the detection plate 11 is placed on the laboratory table, the left-right balance is adjusted, namely, the detection plate 11 is subjected to one-time horizontal adjustment on the laboratory table, at the moment, electrorheological fluid 20 is electrified, the electrorheological fluid 20 is solidified, the detection plate 11 is fixed relative to the laboratory table, the laboratory weighing instrument is placed on the detection plate 11, at the moment, the weight of the same object is weighed, and compared to detect the accuracy of the laboratory weighing instrument in the horizontal state and the working environment, if the numerical values are the same, the accuracy of the laboratory weighing instrument is not affected in the working environment, if the values are different, the working environment of the laboratory weighing instrument needs to be adjusted, the output end of the motor II 30 rotates to drive the gear 31 to rotate, the gear 31 rotates to drive the gear block 32 to rotate, the gear block 32 rotates to drive the detection ring II 13 to rotate, the detection ring II 13 rotates to drive the detection ring I12 to rotate, the detection ring I12 rotates to drive the detection plate 11 to rotate, the output end of the motor I25 rotates to drive the lead screw 26 to rotate, the lead screw 26 rotates to drive the sleeve 28 to move, the sleeve 28 moves to drive the lifting cylinder 37 to move, the output end of the lifting cylinder 37 moves to drive the heating wire I38 to move, the heating wire I38 moves to drive the weight 35 to move, the accuracy of the detection weight 35 in different weighing parts of the laboratory weighing instrument is simultaneously started by the heating wire II 39, the fan I40, the heating wire I38 and the fan II 41, and under the drainage effect of the airflow guide block I42 and the airflow guide block II 43, the laboratory weighing instrument is dried by forming air swirling flow in the dustproof shell 7, so that the influence of the humidity of the working environment on the accuracy of the laboratory weighing instrument is compared, the whole working flow of the laboratory weighing instrument is realized, and the step is repeated when the laboratory weighing instrument is used next time.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (3)
1. The utility model provides an accuracy check out test set that laboratory instrument weighed usefulness, includes detection main part (1) and humidity change sensitivity detection mechanism (4), its characterized in that: the precision detection equipment for laboratory instrument weighing further comprises a comparison type precision detection mechanism (2) and an unocclusion equal weight bearing surface sensitivity detection mechanism (3), wherein the comparison type precision detection mechanism (2) is arranged inside the detection main body (1), the unocclusion equal weight bearing surface sensitivity detection mechanism (3) is arranged inside the detection main body (1), and the humidity change sensitivity detection mechanism (4) is arranged on the side wall of the detection main body (1); the comparison type accuracy detection mechanism (2) comprises a balance self-adjustment detection assembly (9) and a dynamic fixing assembly (10), wherein the balance self-adjustment detection assembly (9) is arranged in the detection main body (1), and the dynamic fixing assembly (10) is arranged at the lower end of the balance self-adjustment detection assembly (9); the detection main body (1) comprises a detection frame (6), a support leg (5), a dustproof shell (7) and a switch door (8), wherein the support leg (5) is arranged at the lower end of the detection main body (1), the detection frame (6) is arranged at the upper end of the support leg (5), the dustproof shell (7) is arranged at the upper end of the detection frame (6), and the switch door (8) is arranged on the dustproof shell (7) in an opening and closing mode; the balance self-adjusting detection assembly (9) comprises a detection plate (11), a first detection ring (12), a second detection ring (13), a first rotation shaft (14) and a second rotation shaft (15), wherein the second detection ring (13) is arranged in the non-positioning equal-weight bearing surface sensitivity detection mechanism (3), one end of the second rotation shaft (15) is rotationally arranged on the inner ring of the second detection ring (13), the outer ring of the first detection ring (12) is arranged at the other end of the second rotation shaft (15), one end of the first rotation shaft (14) is rotationally arranged on the inner ring of the first detection ring (12), and the outer side of the detection plate (11) is rotationally arranged at the other end of the first rotation shaft (14); the dynamic fixing assembly (10) comprises a first connecting rod (16), a gravity ball (17), a transverse supporting frame (18), a hemispherical cavity (19), electrorheological fluid (20) and a fixed grapple (21), wherein one end of the first connecting rod (16) is arranged at the lower end of the detection plate (11), the gravity ball (17) is arranged at the lower end of the first connecting rod (16), the transverse supporting frame (18) is arranged on the side wall of the supporting foot (5), the hemispherical cavity (19) is arranged at the other end of the transverse supporting frame (18), the electrorheological fluid (20) is arranged in the hemispherical cavity (19) in a replaceable manner, and the fixed grapple (21) is arranged on the outer wall of the gravity ball (17); the non-positioning equal weight bearing surface sensitivity detection mechanism (3) comprises a horizontal movement assembly (22), a separated internal rotation assembly (23) and an anti-collision assembly (24), wherein the horizontal movement assembly (22) is arranged at the upper end of the inside of the dustproof shell (7), the separated internal rotation assembly (23) is arranged in the dustproof shell (7), and the anti-collision assembly (24) is arranged on the horizontal movement assembly (22); the horizontal movement assembly (22) comprises a first motor (25), a screw rod (26), a bearing (27), a sleeve (28) and an equipment rack (44), wherein the equipment rack (44) is arranged at the upper end of the inner part of the dustproof shell (7), the first motor (25) is arranged at the outer side of one end of the equipment rack (44), the bearing (27) is arranged at the other end of the inner part of the equipment rack (44), one end of the screw rod (26) is arranged on the bearing (27), the other end of the screw rod (26) is arranged at the output end of the first motor (25), the sleeve (28) is sleeved on the screw rod (26), and the sleeve (28) is in threaded connection with the screw rod (26); the separated type inner rotating assembly (23) comprises an annular groove (29), a second motor (30), a gear (31), a tooth block (32), a sliding block (33) and a second connecting rod (34), wherein the second connecting rod (34) is arranged on the inner side wall of the dustproof shell (7), the second motor (30) is arranged at the other end of the second connecting rod (34), the gear (31) is arranged at the output end of the second motor (30), the annular groove (29) is arranged in the detection frame (6), one end of the sliding block (33) is slidably arranged in the annular groove (29), the other end of the sliding block (33) is arranged on the outer ring of the second detection ring (13), and the annular array of the tooth block (32) is arranged on the outer ring of the second detection ring (13). The anti-collision assembly (24) comprises weights (35), connecting wires (36) and lifting cylinders (37), wherein the lifting cylinders (37) are arranged at the lower ends of the bearings (27), one ends of the connecting wires (36) are arranged at the output ends of the lifting cylinders (37), and the weights (35) are arranged at the other ends of the connecting wires (36).
2. An accuracy testing device for laboratory instrument weighing according to claim 1, wherein: humidity change sensitivity detection mechanism (4) include heater strip one (38), heater strip two (39), fan one (40), fan two (41), air current guide block one (42) and air current guide block two (43), on the lateral wall of dirt proof boot (7) was located to fan one (40), on the other lateral wall of dirt proof boot (7) was located to fan two (41), one side of fan one (40) was located to heater strip two (39), one side of fan two (41) is located to heater strip one (38), inside one side of dirt proof boot (7) is located to air current guide block one (42), inside opposite side of dirt proof boot (7) is located to air current guide block two (43), the opposite side of air current guide block one (42) is located to air current guide block two (43) central symmetry.
3. An accuracy testing device for laboratory instrument weighing according to claim 2, wherein: the electrorheological fluid (20) is externally connected with a power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211570257.1A CN115655440B (en) | 2022-12-08 | 2022-12-08 | Precision detection equipment for laboratory instrument weighing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211570257.1A CN115655440B (en) | 2022-12-08 | 2022-12-08 | Precision detection equipment for laboratory instrument weighing |
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| Publication Number | Publication Date |
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| CN115655440A CN115655440A (en) | 2023-01-31 |
| CN115655440B true CN115655440B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211570257.1A Active CN115655440B (en) | 2022-12-08 | 2022-12-08 | Precision detection equipment for laboratory instrument weighing |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB695362A (en) * | 1949-11-30 | 1953-08-12 | Percy Burton | An instrument for the testing for accuracy of weighbridges and other weighing instruments of high capacity |
| CN104121979A (en) * | 2014-07-22 | 2014-10-29 | 常熟市环境试验设备有限公司 | Test device for weighing device accuracy detection |
| CN206648678U (en) * | 2017-04-27 | 2017-11-17 | 张晓燕 | A kind of use for laboratory measurement instrument calibrating installation |
| CN109798965A (en) * | 2019-02-20 | 2019-05-24 | 深圳市律远汇智科技有限公司 | A kind of stable type weight detection equipment with Level tune function |
| CN210664747U (en) * | 2019-11-18 | 2020-06-02 | 内蒙古寰宇环境科技有限公司 | Low-concentration constant-temperature and constant-humidity weighing device for laboratory |
| CN212082581U (en) * | 2020-06-17 | 2020-12-04 | 盐城市世波电子有限公司 | Weighing sensor test equipment |
| CN112229495A (en) * | 2020-11-05 | 2021-01-15 | 常州艾克瑞特衡器有限公司 | Automatic weighing apparatus detection device with environmental test chamber |
| CN115165060A (en) * | 2022-06-23 | 2022-10-11 | 东南大学 | Electronic scale calibrating device |
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2022
- 2022-12-08 CN CN202211570257.1A patent/CN115655440B/en active Active
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