CN201569477U - Small measuring vessel automatic measurement calibration device - Google Patents

Small measuring vessel automatic measurement calibration device Download PDF

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Publication number
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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automatic liquid
small
automatic
electronic scale
measuring vessel
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CN2009202905718U
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张桂芹
王兆军
张华玲
侯继梅
王泽俊
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Shandong Jianzhu University
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Shandong Jianzhu University
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Abstract

The utility model provides a small measuring vessel automatic measurement calibration device, which comprises a constant temperature cabinet, a displacement transducer, an automatic liquid filler, a digital camera measuring unit, a fluid container, an electronic scale and a computer, wherein all the electronic scale, the digital camera measuring unit, the automatic liquid filler and the fluid container are fixed on a beam; the suction of the automatic liquid filler extends into the fluid container; and all the digital camera measuring unit, the automatic liquid filler and the displacement transducer are connected with the computer. The utility model leads the small measuring vessel to be calibrated under constant temperature state, can realize batch calibration of the small measuring vessel, reaching 200 pieces per day, greatly improves the calibration efficiency, also can effectively avoid human error, and improves the calibration precision of the measuring vessel.

Description

小量器自动计量检定装置 Small volume automatic measurement and verification device

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 drawing 1, the automatic metering and verification device for small measuring devices of the present utility model is mainly composed of a constant temperature box 1, a displacement sensor 2, an automatic liquid feeder 3, a digital photographic measuring device 4, a liquid storage container 5, an electronic scale 7 and The computer 9 is composed. The electronic scale 7 is placed in the incubator 1 , and the digital photo measuring device 4 , the automatic liquid feeder 3 and the liquid storage container 5 are arranged on the bracket 6 in the incubator 1 . A crossbeam 10 is arranged on the support 6, and the automatic liquid filler 3 is fixed on the crossbeam 10. The electronic scale 7, the digital photo measuring device 4, the automatic liquid feeder 3 and the displacement sensor 2 are all connected with the computer 9. The suction port of the automatic liquid feeder 3 stretches in the liquid storage container 5 . The displacement sensor 2 is used to measure the height of the liquid level in the small measuring device 8, and the displacement sensor 2 is arranged on the crossbeam 10 of the fixed automatic liquid feeder 3, and is close to the nozzle of the automatic liquid feeder 3, and the nozzle of the automatic liquid feeder 3 is also fixed on the beam. The liquid required by the automatic liquid feeder 3 is contained in the liquid storage container 5, which is generally distilled water. Electronic scale 7 is used for weighing the liquid weight in small measuring device 8.

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 incubator 1 is used to ensure that the ambient temperature required by the detection instrument and the water temperature in the liquid storage container 5 are kept at 20°C. The heating and temperature control device in the incubator 1 is the same as the structure of the existing incubator, and the constant temperature of 20° C. is maintained in the incubator 1 by the temperature control device.

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 photographic measuring device 4 adopts the existing digital photographing technology to take pictures of the small measuring device 8 to analyze the uniformity of the scale on the small measuring device 8, and the computer 9 can also judge the small measuring device 8 according to the uniformity of the scale. If the scale is not uniform, it is directly judged that the small measuring device 8 is unqualified; if the scale is uniform, it can enter the liquid addition program, that is to say, the uniform scale is one of the conditions for the small measuring device 8 to be qualified. Simultaneously measure the height of the micrometer 8 at three different scale positions (2/10 scale, 5/10 scale and full scale), and input this height information into the computer 9, and the computer 9 automatically calculates the liquid addition at these positions Volume, and control the automatic liquid feeder 3 to add liquid to the small volume container 8.

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 automatic liquid feeder 3 fills liquid into the small volume container 8 according to the instructions transmitted by the computer 9, and the displacement sensor 2 measures the height of the liquid level in the small volume container 8 at the same time. When the height requirements at different scales are reached, stop adding liquid. Automatic liquid feeder 3 adopts prior art.

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 computer 9 is stored with a measurement standard database, and the computer 9 operates a statistical program, and calculates the small amount according to the liquid level displacement in the small volume 8 measured by the electronic scale 7 and the liquid level displacement in the small volume 8 measured by the displacement sensor 2. The actual volume of the gauge 8 at each scale position. Comparing the actual volume of the small measuring device 8 at different scale positions with the corresponding standard volume in the standard database, and then judging whether the small measuring device 8 is qualified.

Claims (1)

1. device automatic gauge calibrating installation in a small amount, comprise constant temperature oven, displacement transducer, automatic liquid adding device, the numeral measurement mechanism of taking pictures, liquid storage container, electronic scale and computing machine, it is characterized in that: electronic scale, the numeral measurement mechanism of taking pictures, automatic liquid adding device, displacement transducer and liquid storage container all are arranged in the constant temperature oven, automatic liquid adding device and displacement transducer are positioned at the top of electronic scale, displacement transducer is arranged on the fixed cross beam of automatic liquid adding device, the suction inlet of automatic liquid adding device stretches in the liquid storage container, electronic scale, the numeral measurement mechanism of taking pictures, automatic liquid adding device all is connected with computing machine with displacement transducer.
CN2009202905718U 2009-12-25 2009-12-25 Small measuring vessel automatic measurement calibration device Expired - Fee Related CN201569477U (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
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
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

Cited By (11)

* Cited by examiner, † Cited by third party
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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Granted publication date: 20100901

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