CN214150294U - High-precision density tester - Google Patents
High-precision density tester Download PDFInfo
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- CN214150294U CN214150294U CN202023240540.7U CN202023240540U CN214150294U CN 214150294 U CN214150294 U CN 214150294U CN 202023240540 U CN202023240540 U CN 202023240540U CN 214150294 U CN214150294 U CN 214150294U
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- water tank
- microprocessor
- measuring table
- gravity sensor
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Abstract
A high-precision density tester relates to a testing instrument and solves the problems that the existing density tester is complex in operation, cannot directly read a measured value and is low in measurement precision. The utility model comprises a host machine, a liquid crystal display screen and keys which are arranged on the host machine; the microprocessor is arranged in the host, and the liquid crystal display screen and the keys are connected with the microprocessor; a water tank fixed on the main machine; the two ends of the U-shaped measuring table are respectively fixed on the front side and the rear side of the water tank; the object stage is arranged at the upper end of the measuring stage; the gravity sensor and the tension sensor are arranged inside the upper end of the measuring table, the gravity sensor is connected with the objective table, and the gravity sensor and the tension sensor are both connected with the microprocessor; a spring dynamometer fixed on the inner wall of the upper end of the measuring table; and the string is arranged on a hook at the lower end of the spring dynamometer. The utility model discloses simple structure, measurement repeatability are good, the precision is high, easy operation, measurement are quick, stability can be good.
Description
Technical Field
The utility model relates to a test instrument, concretely relates to high accuracy density tester.
Background
At present, density measurement on magnetic materials, precision ceramics, powder metallurgy, pneumatic tools, automobile parts, mechanical parts, MIM injection, friction materials, new materials is generally achieved using different methods and principles. Generally, the method adopts a boiling method, a wax sealing method and a vacuum saturation method for measurement. The existing density measuring meter for each substance generally needs to measure the weight of the measured substance independently and then measure the buoyancy of the object in water, two steps are separately carried out during measurement, the operation is complicated, the measured value cannot be directly read, and the measurement has the problem of low precision.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high accuracy density tester to solve the complex operation that prior art medium density tester exists, unable direct reading measured value, the not high problem of measurement accuracy.
The utility model discloses a solve the technical scheme that technical problem adopted as follows:
the utility model discloses a high accuracy density tester, include: the device comprises a host, and a liquid crystal display screen and keys which are arranged on the host;
the microprocessor is arranged in the host, and the liquid crystal display screen and the keys are connected with the microprocessor;
a water tank fixed on the main machine;
the two ends of the U-shaped measuring table are respectively fixed on the front side and the rear side of the water tank;
the object stage is arranged at the upper end of the measuring stage;
the gravity sensor and the tension sensor are arranged inside the upper end of the measuring table, the gravity sensor is connected with the objective table, and the gravity sensor and the tension sensor are both connected with the microprocessor;
a spring dynamometer fixed on the inner wall of the upper end of the measuring table;
and the string is arranged on a hook at the lower end of the spring dynamometer.
Furthermore, the water tank installation structure further comprises four water tank installation seats, wherein the four water tank installation seats are all installed on the upper surface of the host, and the water tank is fixed on the host through the four water tank installation seats.
Furthermore, transparent windows are respectively arranged on the left side and the right side of the measuring table.
Furthermore, the measuring device also comprises a windproof and dustproof cover arranged outside the water tank and the measuring table.
The utility model has the advantages that:
the utility model discloses a based on under many years' density measurement technique, simplify, optimize the structure, reinforce the practicality and a high accuracy density tester who designs through the function, have simple structure, measure that repeatability is good, the precision is high, easy operation, measure characteristics such as quick, stability can be good. The utility model mainly measures the density of magnetic materials, precise ceramics, powder metallurgy, pneumatic tools, automobile parts, mechanical parts, MIM injection, friction materials, new materials and the like; meets the standard specification requirements of ASTM B311, B328, GB/T5163, JIS Z2505, JIS Z2506, MPIF Standagard 42, MPIF Standagard 45 and the like, and is suitable for sites such as rapid detection of fields and laboratories.
Drawings
Fig. 1 is the structure schematic diagram of the high precision tester of the utility model.
Fig. 2 is the structure schematic diagram of the high precision tester of the present invention.
Fig. 3 is the structure diagram of the high precision tester of the present invention.
In the figure, the device comprises a main machine 1, a main machine 2, a liquid crystal display screen 3, keys 4, a water tank mounting seat 5, a measured object 6, a water tank 7, a measuring table 8, an objective table 9, a transparent window 10, a string 11, a gravity sensor 12, a tension sensor 13, a spring dynamometer 14, a microprocessor 15 and a windproof and dustproof cover.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, the high precision density tester of the present invention mainly comprises: the device comprises a host 1, a liquid crystal display screen 2, a key 3, a water tank mounting seat 4, a measured object 5, a water tank 6, a measuring table 7, an objective table 8, a transparent window 9, a string 10, a gravity sensor 11, a tension sensor 12, a spring dynamometer 13, a microprocessor 14 and a windproof and dustproof cover 15.
The microprocessor 14 is installed inside the host 1. The microprocessor 14 employs STM32F103RCT 6.
The liquid crystal display screen 2 and the keys 3 are arranged on the upper surface of the main machine 1. The liquid crystal display 2 and the keys 3 are connected to the microprocessor 14.
The number of the water tank installation seats 4 is four, and the four water tank installation seats 4 are all installed on the upper surface of the main machine 1.
The water tank 6 is fixed on the four water tank mounting seats 4. The water tank 6 is an integrated injection molding transparent measuring water tank, and the water tanks 6 with different sizes can be customized according to the size of a measured object.
The measuring table 7 is U-shaped, and two ends of the measuring table are fixed on the front side and the rear side of the water tank 6. Transparent windows 9 are respectively arranged at the left side and the right side of the measuring table 7. An object stage 8 is provided at the upper end of the measuring table 7. The measuring table 7 can be formed by ABS injection molding or aluminum alloy molding.
The gravity sensor 11 and the tension sensor 12 are both arranged inside the upper end of the measuring table 7. A gravity sensor 11 is connected to the stage 8. The gravity sensor 11 and the tension sensor 12 are connected to a microprocessor 14.
The utility model discloses in, gravity sensor 11 specifically adopts the model to be PW16C3/PW16C 3-MR's single-point weighing sensor, and the producer is Shenzhen ancient cooking vessel power automation equipment Limited.
The utility model discloses in, tension sensor 12's model is TJL-1, and the producer is Anhui sky light sensor limited company.
The upper end of the spring dynamometer 13 is fixed on the inner wall of the upper end of the measuring table 7.
The hook at the lower end of the spring force gauge 13 is connected with a string 10. The string 10 is of negligible weight.
The wind-proof and dust-proof cover 15 is provided outside the water tank 6 and the measuring table 7.
The utility model discloses a high accuracy density tester, when using, at first place testee 5 in objective table 8, the weight of surveying transmits to microprocessor 14 through gravity sensor 11, records the weight of testee 5; the object 5 to be measured is then connected to a spring force gauge 13 via a string 10, the tension of the object 5 to be measured by the spring force gauge 13 is transmitted to a microprocessor 14 via a tension sensor 12, and the density of the object 5 to be measured is calculated by a density algorithm in the microprocessor 14.
The utility model discloses a secondary weighing method measures the density of testee. The specific calculation formula is as follows:
in the formula, ρArticle (A)Representing the density, p, of the object to be measuredLiquid for treating urinary tract infectionIndicating the density of the liquid medium, G indicating the weight of the object to be measured in air, FPulling deviceRepresenting the tension of the object under test in the liquid medium against the spring force gauge.
The utility model discloses a high accuracy density tester, its specific parameter is as follows:
measuring time: about 5 seconds is the fastest, depending on the measurement mode.
Weighing range: 150-3000 g.
Weighing precision: 0.001 to 0.01 g.
Density readability: 0.0001 to 0.001g/cm3。
Density range: 0.0001 to 99.999g/cm3。
Setting parameters: setting water temperature, setting measuring medium density and setting waterproof treatment medium density.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments, but such modifications or substitutions do not depart from the spirit and scope of the present invention.
Claims (4)
1. High accuracy density tester includes: the device comprises a host, a liquid crystal display screen and a key which are arranged on the host, and a microprocessor which is arranged in the host, wherein the liquid crystal display screen and the key are both connected with the microprocessor; it is characterized by also comprising:
a water tank fixed on the main machine;
the two ends of the U-shaped measuring table are respectively fixed on the front side and the rear side of the water tank;
the object stage is arranged at the upper end of the measuring stage;
the gravity sensor and the tension sensor are arranged inside the upper end of the measuring table, the gravity sensor is connected with the objective table, and the gravity sensor and the tension sensor are both connected with the microprocessor;
a spring dynamometer fixed on the inner wall of the upper end of the measuring table;
and the string is arranged on a hook at the lower end of the spring dynamometer.
2. The high accuracy tester of claim 1, further comprising four water tank mounting seats, wherein the four water tank mounting seats are all mounted on the upper surface of the main machine, and the water tank is fixed on the main machine through the four water tank mounting seats.
3. The high precision tester according to claim 1, wherein transparent windows are provided on the left and right sides of the measuring table, respectively.
4. The high precision tester according to claim 1, further comprising a wind-proof and dust-proof cover disposed outside the water tank and the measuring table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023240540.7U CN214150294U (en) | 2020-12-29 | 2020-12-29 | High-precision density tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023240540.7U CN214150294U (en) | 2020-12-29 | 2020-12-29 | High-precision density tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214150294U true CN214150294U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023240540.7U Active CN214150294U (en) | 2020-12-29 | 2020-12-29 | High-precision density tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214150294U (en) |
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2020
- 2020-12-29 CN CN202023240540.7U patent/CN214150294U/en active Active
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| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 130000 room 1401, 14th floor, Zhongguancun innovation center, high tech Zone, Changchun City, Jilin Province Patentee after: Jilin aigrui Technology Co.,Ltd. Address before: Room 501, unit 1, floor 5, building 4, south of Jinhu Road, east of Chaofan street, high tech Industrial Development Zone, Changchun City, Jilin Province, 130000 Patentee before: Jilin aigrui Technology Co.,Ltd. |