CN201569477U - Small measuring vessel automatic measurement calibration device - Google Patents
Small measuring vessel automatic measurement calibration device Download PDFInfo
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- CN201569477U CN201569477U CN2009202905718U CN200920290571U CN201569477U CN 201569477 U CN201569477 U CN 201569477U CN 2009202905718 U CN2009202905718 U CN 2009202905718U CN 200920290571 U CN200920290571 U CN 200920290571U CN 201569477 U CN201569477 U CN 201569477U
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- 238000005259 measurement Methods 0.000 title claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims 1
- 239000000945 filler Substances 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract 3
- 238000012795 verification Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Abstract
Description
技术领域technical field
本实用新型涉及一种小量器的自动计量检定装置,属于计量检定技术领域。The utility model relates to an automatic metering verification device for a small measuring device, which belongs to the technical field of metering verification.
背景技术Background technique
对实验室常用的玻璃量器如单线容量瓶、量筒、量杯等,要定期进行检定,以保证各类小量器的精度。目前对这类实验设备的检定,尤其是小量器的计量检定,还局限在手工操作上,对各类量器经过反复的实验,以判断量器刻度分布的是否均匀、精确,同时判定其总容量是否在误差范围内。这种手工检定方式耗时长、样品处理量较少,据统计,检定数量一般在20-30支/日左右,同时人为造成的误差也大,影响了小量器检定的效率和精度。For glass measuring instruments commonly used in laboratories, such as single-line volumetric flasks, measuring cylinders, measuring cups, etc., regular verification should be carried out to ensure the accuracy of various small measuring instruments. At present, the verification of this kind of experimental equipment, especially the measurement verification of small measuring instruments, is still limited to manual operation. Repeated experiments on various measuring instruments are used to judge whether the scale distribution of measuring instruments is uniform and accurate. Whether the total capacity is within the error range. This manual verification method takes a long time and the amount of sample processing is small. According to statistics, the number of verifications is generally about 20-30 pieces per day.
发明内容Contents of the invention
本实用新型针对现有的小量器手工检定方法存在的效率低、精度差等问题,提供一种检定效率高、精度高的小量器自动计量检定装置。The utility model aims at the problems of low efficiency and poor precision existing in the existing manual verification method for small measuring instruments, and provides an automatic measuring and verifying device for small measuring instruments with high verification efficiency and high precision.
本实用新型的小量器自动计量检定装置采用以下技术方案:The automatic metering and verification device for small measuring devices of the utility model adopts the following technical solutions:
该小量器自动计量检定装置包括恒温箱、位移传感器、自动加液器、数字照像测量装置、储液容器、电子称和计算机,电子称、数字照像测量装置、自动加液器、位移传感器和储液容器均设置在恒温箱内,自动加液器和位移传感器位于电子称的上方,位移传感器设置在自动加液器的固定横梁上,自动加液器的吸入口伸入储液容器内,电子称、数字照像测量装置、自动加液器和位移传感器均与计算机连接。The automatic measurement and verification device for a small amount of equipment includes a constant temperature box, a displacement sensor, an automatic liquid feeder, a digital photographic measuring device, a liquid storage container, an electronic scale and a computer, an electronic scale, a digital photographic measurement device, an automatic liquid feeder, a displacement Both the sensor and the liquid storage container are set in the constant temperature box, the automatic liquid feeder and the displacement sensor are located above the electronic scale, the displacement sensor is set on the fixed beam of the automatic liquid feeder, and the suction port of the automatic liquid feeder extends into the liquid storage container Inside, electronic scales, digital photo measuring devices, automatic liquid adders and displacement sensors are all connected to the computer.
检定时,将恒温箱内的温度恒定在20℃,静置10分钟后开始使用,保证检测仪器所需的环境温度和储液容器内的水温均保持在20℃。将需要鉴定的小量器放置在电子称上。数字照像测量装置对小量器进行照像,来分析小量器刻度的均匀性,同时测量小量器在不同刻度位置处的高度,将此高度信息输入计算机,由计算机自动计算出这些位置处的加液体积量,并控制自动加液器对小量器加液。位移传感器测定液面的高度,当加液高度满足要求(达到数字照像测量装置提供的不同刻度处的高度)时,停止加液。计算机运行统计程序,将小量器在各刻度位置时的实际体积与相应的标准体积进行比较,进而判断出小量器是否合格。During the verification, keep the temperature in the incubator constant at 20°C, let it stand for 10 minutes before using it, and ensure that the ambient temperature required by the testing instrument and the water temperature in the liquid storage container are kept at 20°C. Place the small scale to be identified on the electronic scale. The digital photographic measuring device takes pictures of the small gauge to analyze the uniformity of the scale of the small gauge, and at the same time measures the height of the small gauge at different scale positions, and inputs the height information into the computer, and the computer automatically calculates these positions The volume of liquid added at the place, and control the automatic liquid feeder to add liquid to the small volume container. The displacement sensor measures the height of the liquid level, and when the height of liquid addition meets the requirements (reaching the height at different scales provided by the digital photo measuring device), the liquid addition is stopped. The computer runs a statistical program to compare the actual volume of the small gauge with the corresponding standard volume at each scale position, and then judge whether the small gauge is qualified.
本实用新型使小量器在恒温状态下检定,能够实现小量器的批量检定,检定量在200支/日以上,大大提高了检定效率,同时也可有效的避免人为误差,提高小量器的检定精度。The utility model makes the verification of the small measuring device under the constant temperature state, can realize the batch verification of the small measuring device, and the verification quantity is more than 200 per day, which greatly improves the verification efficiency, and can also effectively avoid human error and improve the accuracy of the small measuring device. test accuracy.
附图说明Description of drawings
图1是本实用新型的结构示意图。Fig. 1 is a structural representation of the utility model.
图中:1、恒温箱,2、位移传感器,3、自动加液器,4、数字照像测量装置,5、储液容器,6、支架,7、电子称,8、小量器,9、计算机,10、横梁。In the figure: 1. Constant temperature box, 2. Displacement sensor, 3. Automatic liquid feeder, 4. Digital photographic measuring device, 5. Liquid storage container, 6. Bracket, 7. Electronic scale, 8. Small measuring device, 9 , computer, 10, beam.
具体实施方式Detailed ways
如附图1所示,本实用新型的小量器自动计量检定装置主要由恒温箱1、位移传感器2、自动加液器3、数字照像测量装置4、储液容器5、电子称7和计算机9组成。电子称7放置在恒温箱1内,数字照像测量装置4、自动加液器3和储液容器5设置在恒温箱1内的支架6上。支架6上设置有横梁10,自动加液器3固定在该横梁10上。电子称7、数字照像测量装置4、自动加液器3和位移传感器2均与计算机9连接。自动加液器3的吸入口伸入储液容器5内。位移传感器2用于测定小量器8内液面的高度,位移传感器2设置在固定自动加液器3的横梁10上,与自动加液器3的喷嘴临近,自动加液器3的喷嘴也固定在该横梁上。储液容器5内盛放自动加液器3所需的液体,一般是蒸馏水。电子称7用来称量小量器8内的液体重量。As shown in accompanying
恒温箱1用于保证检测仪器所需的环境温度和储液容器5内的水温均保持在20℃。恒温箱1内的加热及温度控制装置与现有恒温箱的结构一样,通过温度控制装置使恒温箱1内保持20℃的恒温。The
数字照像测量装置4采用现有数字照像技术,用于对小量器8进行照像,来分析小量器8上刻度的均匀性,计算机9也可根据刻度的均匀性判断出小量器8是否合格,刻度不均匀,直接判定小量器8不合格;刻度均匀,可以进入加液程序,也就是说,刻度均匀是小量器8合格的条件之一。同时测量小量器8在三处(2/10刻度、5/10刻度和满刻度)不同刻度位置处的高度,将此高度信息输入计算机9,由计算机9自动计算出这些位置处的加液体积量,并控制自动加液器3对小量器8加液。The digital
自动加液器3按照计算机9传递来的指令向小量器8中加注液体,同时位移传感器2测定小量器8中液面的高度,当加液高度满足数字照像测量装置4提供的不同刻度处的高度要求时,停止加液。自动加液器3采用现有技术。The
计算机9内存储有计量标准数据库,计算机9运行统计程序,根据电子称7称量的小量器8的加液质量和位移传感器2测得的小量器8内的液面位移量计算出小量器8在各刻度位置时的实际体积。将小量器8在不同刻度位置时的实际体积与标准数据库中相应的标准体积进行比较,进而判断出小量器8是否合格。The
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103452828A (en) * | 2012-05-30 | 2013-12-18 | 上海蓝蔚科技发展有限公司 | Flow titration and calibration method for flow pump with different fluids |
CN104180878A (en) * | 2014-08-26 | 2014-12-03 | 深圳市湘津石仪器有限公司 | Container capacity automatic verification device and verification method thereof |
CN105222849A (en) * | 2015-10-23 | 2016-01-06 | 中国计量学院 | A kind of volumetric glass volumetric measurement system and method |
CN109974820A (en) * | 2019-03-13 | 2019-07-05 | 上海理工大学 | Pen-type insulin syringe Dose accuracy detection device and method |
CN110044448A (en) * | 2019-05-29 | 2019-07-23 | 山西科致成科技有限公司 | A kind of volumetric glass capacity automatic calibrator and its calibration method |
CN110702191A (en) * | 2019-11-11 | 2020-01-17 | 上海市质量监督检验技术研究院 | A dynamic flow controller detection device |
CN110715711A (en) * | 2019-09-27 | 2020-01-21 | 天津市计量监督检测科学研究院 | Automatic calibration system of graduated flask |
CN110715712A (en) * | 2019-11-14 | 2020-01-21 | 北京市计量检测科学研究院 | Full-automatic capacity calibration device for small-capacity container and use method thereof |
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2009
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Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103452828A (en) * | 2012-05-30 | 2013-12-18 | 上海蓝蔚科技发展有限公司 | Flow titration and calibration method for flow pump with different fluids |
CN103452828B (en) * | 2012-05-30 | 2016-10-05 | 上海蓝蔚科技发展有限公司 | The flow titration scaling method of flow pump different liquids |
CN104180878A (en) * | 2014-08-26 | 2014-12-03 | 深圳市湘津石仪器有限公司 | Container capacity automatic verification device and verification method thereof |
CN105222849A (en) * | 2015-10-23 | 2016-01-06 | 中国计量学院 | A kind of volumetric glass volumetric measurement system and method |
CN105222849B (en) * | 2015-10-23 | 2018-04-03 | 中国计量学院 | A kind of volumetric glass volumetric measurement system and method |
CN109974820A (en) * | 2019-03-13 | 2019-07-05 | 上海理工大学 | Pen-type insulin syringe Dose accuracy detection device and method |
CN110044448A (en) * | 2019-05-29 | 2019-07-23 | 山西科致成科技有限公司 | A kind of volumetric glass capacity automatic calibrator and its calibration method |
CN110715711A (en) * | 2019-09-27 | 2020-01-21 | 天津市计量监督检测科学研究院 | Automatic calibration system of graduated flask |
CN110702191A (en) * | 2019-11-11 | 2020-01-17 | 上海市质量监督检验技术研究院 | A dynamic flow controller detection device |
CN110702191B (en) * | 2019-11-11 | 2024-05-10 | 上海市质量监督检验技术研究院 | Dynamic flow controller detection device |
CN110715712A (en) * | 2019-11-14 | 2020-01-21 | 北京市计量检测科学研究院 | Full-automatic capacity calibration device for small-capacity container and use method thereof |
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