WO2021238043A1 - 一种测量液体混合滴加产生电信号的实验装置 - Google Patents

一种测量液体混合滴加产生电信号的实验装置 Download PDF

Info

Publication number
WO2021238043A1
WO2021238043A1 PCT/CN2020/123791 CN2020123791W WO2021238043A1 WO 2021238043 A1 WO2021238043 A1 WO 2021238043A1 CN 2020123791 W CN2020123791 W CN 2020123791W WO 2021238043 A1 WO2021238043 A1 WO 2021238043A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
solid electrode
electrode plate
box
experiment
Prior art date
Application number
PCT/CN2020/123791
Other languages
English (en)
French (fr)
Inventor
张彩霞
陈俊民
刘志峰
刘萌萌
杨聪彬
Original Assignee
北京工业大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京工业大学 filed Critical 北京工业大学
Publication of WO2021238043A1 publication Critical patent/WO2021238043A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/24—Arrangements for measuring quantities of charge

Definitions

  • the invention relates to an experimental device for measuring electrical signals generated by liquid mixing and dripping, and belongs to the field of solid-liquid friction power generation research.
  • Triboelectricity is ubiquitous in nature, such as combing hair, walking, dressing, etc. As long as two objects are in contact with each other, there will be an exchange of charges.
  • triboelectricity such as self-driven sensing and collection of various forms of mechanical energy through solid-solid interface friction, wave energy collection and raindrop power generation through solid-liquid interface friction, etc. .
  • Regarding the field of solid-liquid friction power generation especially the research on friction power generation between droplets and solids, there are still many issues to be explored. When the solution is in contact with the solid friction pair, it can generate instantaneous electrical signals.
  • the present invention proposes an experimental device for measuring electrical signals generated by liquid mixing and dripping.
  • the present invention mainly adopts the following technical solutions:
  • An experimental device for measuring electrical signals generated by liquid mixing and dripping including:
  • the box is used to place the various parts that make up the experimental device.
  • the multi-channel liquid dripping unit is used to drip different solutions on the solid electrode plate.
  • the experimental temperature control module is used to change the temperature conditions of the experiment.
  • the triboelectric generating unit is used to generate electrical signals by rubbing against the different dripping solutions.
  • the clamping device is used to fix and support solid electrode plates of different thicknesses and sizes, and can achieve a certain angle of inclination between the solid electrode plates and the horizontal plane.
  • the liquid tank can be raised and lowered for collecting waste liquid or soaking solid electrode plates.
  • the signal acquisition and display unit is used for real-time acquisition and display of electrical signals generated by solid-liquid friction.
  • the above-mentioned box body includes a shell and a door; the inner bottom surface of the box body has two guide rails on the left and right sides; the door is a glass door with a certain curvature.
  • the above-mentioned multi-channel liquid dripping unit includes a multi-channel peristaltic pump, a container for liquid, a hose, and a liquid collection device; the hose is installed on the peristaltic pump, one end is connected to the liquid collection device, and the other end is placed
  • the liquid container; the peristaltic pump and the liquid container are outside the box and placed on a horizontal surface; the liquid container is a beaker, and the number and specifications of the beaker are determined according to the type and volume of the solution required in the experiment
  • the liquid collection device is a hollow shell structure, the upper part of the liquid collection device is cylindrical, and there are several small holes on the side of the cylinder.
  • the diameter of the small holes is slightly larger than the diameter of the hose for connecting the hose; the liquid The lower part of the collecting device is conical with small holes on the top of the cone. The solution drips onto the solid electrode plate through the small holes and generates frictional charge with the solid electrode plate; the liquid collecting device is installed on an iron stand; the iron The iron rod of the stand is engraved with a height line, and the liquid collecting device can move up and down along the iron rod, and the height of the liquid collecting device can be adjusted according to the needs of the experiment.
  • the above-mentioned experimental temperature control module includes a heater, a temperature controller, a temperature sensor, and a wire;
  • the temperature controller has a digital display screen and a setting button, which can set the target temperature and display the actual temperature measured by the temperature sensor in real time , Placed outside of the box, installed on the top of the box, respectively connected with the heating plate and temperature sensor through wires, used to control the working state of the heating plate and transmit temperature signals;
  • the temperature sensor is installed on the iron frame, the height and solid The height of the electrode plate is the same, and the temperature around the solid electrode plate is measured;
  • the heating plate is a silicon rubber heating plate, and there are five pieces in total, which are attached to the top, bottom, left, right and back of the box. Three-dimensional heating is performed inside the experiment box.
  • the above-mentioned friction power generation unit includes a solid electrode plate, conductive silver glue, silica gel, and wires; both ends of the solid electrode plate use conductive silver glue and wires to achieve ohmic connection; the silica gel is coated on the surface of the conductive silver glue to prevent electrical circuits Short circuit; the solid electrode plate includes a substrate and a friction pair; the substrate is polytetrafluoroethylene; the friction pair is a single-layer graphene attached to a polytetrafluoroethylene material.
  • the above-mentioned clamping device includes an angular displacement stage bracket, an angular displacement stage, an upper splint, a lower splint, a spring, a tie rod, and a cantilever;
  • the angular displacement stage bracket is installed on a guide rail at the bottom of the box and can move left and right along the guide rail;
  • the angular displacement stage is installed on the angular displacement stage bracket, fixed by screws, and can move left and right under the drive of the angular displacement stage bracket;
  • the cantilever is installed on the side of the angular displacement stage and connected by screws;
  • the cantilever is installed
  • the lower splint and the upper splint, the upper splint and the pull rod are fixed together, and the pull rod is sleeved with a spring to make the upper and lower splints in a closed state;
  • the angular displacement table can rotate within a certain angle range, thereby driving the cantilever to tilt to a certain
  • the above-mentioned liftable liquid tank includes a lifting platform and a liquid tank; the lifting platform is installed in the middle of the left and right guide rails at the bottom of the box; the liquid tank is freely placed on the lifting platform, and the liquid tank is controlled by adjusting the lifting platform.
  • Height The liquid tank has different specifications, and a liquid tank with a size slightly larger than the size of the solid electrode plate is generally selected in the experiment.
  • the above-mentioned signal acquisition unit is an oscilloscope or a precision multimeter or other electrical measuring equipment; the positive and negative leads of the oscilloscope or other electrical measuring equipment are respectively connected with the leads at both ends of the solid electrode plate to form a conductive path.
  • An experimental method for measuring electrical signals generated by liquid mixing and dripping includes the following steps:
  • Adjust the height of the lifting platform If the experiment is in a liquid environment, the lifting platform rises until the solid electrode plate can be immersed in the liquid tank; if the experiment is an atmospheric environment, adjust the liquid tank not to contact the solid electrode plate;
  • the invention can test the triboelectric signal between the liquid drop and the solid electrode, and at the same time combines the temperature control module and the multi-channel peristaltic pump, so as to realize that under different temperature conditions, when solid electrodes of different sizes and thicknesses are in an atmospheric environment or a liquid environment,
  • the study of triboelectric signals generated by different solutions dropping and hitting the electrode plates has important value and significance for the study of micro-tribology.
  • Fig. 1 is an overall appearance view of the present invention.
  • Figure 2 is a schematic diagram of the overall internal structure of the box.
  • Figure 3 is a schematic diagram of the overall structure from another perspective.
  • Fig. 4 is a schematic diagram of the structure of the angular displacement stage and the angular displacement stage bracket.
  • Fig. 5 is a schematic diagram of the structure of the clamping device.
  • Figure 6 is a schematic diagram of the structure of a friction power generation unit.
  • Figure 7 is a schematic diagram of the structure of a liquid tank that can be raised and lowered.
  • Fig. 8 is a schematic diagram of the structure of a multi-channel liquid dropping unit.
  • the system includes:
  • the box is used to place the components that make up the experimental device.
  • the multi-channel liquid dripping unit is used to drip different solutions on the solid electrode plate.
  • the experimental temperature control module is used to change the temperature conditions of the experiment.
  • the triboelectric generating unit is used to generate electrical signals by rubbing against the different dripping solutions.
  • the clamping device is used to fix and support solid electrode plates of different thicknesses and sizes, and can achieve a certain angle of inclination between the solid electrode plates and the horizontal plane.
  • the liquid tank can be raised and lowered for collecting waste liquid or soaking solid electrode plates.
  • the signal acquisition and display unit is used for real-time acquisition and display of electrical signals generated by solid-liquid friction.
  • an arc-shaped glass door 3-15 and an arc-shaped glass door 3-17 are installed on both sides of the box body 3, respectively, which can be rotated around its rotation axis. 90°, open to the outside of the box; there are four guide rails 3-1 on the bottom surface of the box 3, two on the left and right sides, every two guide rails are a group, and each group of guide rails is equipped with an angle displacement stage bracket 3- 3. It can be slid left and right along the guide rail.
  • An angle translation stage 3-4 is installed on the angle translation stage bracket 3-3, which is connected together by screws; the side wall of the angle translation stage 3-4 is connected with a clamp 3-5, which is connected by screws Together; move the brackets 3-3 of the left and right angle stages so that the distance between the left and right clamps 3-5 can hold the solid electrode plate 3-10; adjust the rotation angle of the left and right angle stages 3-4 to 0°,
  • the clamped solid electrode plates 3-10 are placed horizontally.
  • the left and right angular platform can be adjusted to rotate from 0° to 60°, so that the solid electrode plates 3-10 are inclined at a certain angle.
  • the upper splint 3-5-3 of the clamp 3-5 can slide up and down along the chute 3-5-4, and the opening size can be adjusted as needed to adapt to different Thickness of the electrode plate; the clamp 3-5 clamps the solid electrode plate 3-10 under the tension of the compressed spring 3-5-2; the size of the solid electrode plate 3-10 is 10cm ⁇ 10cm, and the thickness is 2mm
  • the substrate of the solid electrode plate 3-10 is polytetrafluoroethylene, and the friction pair attached to the substrate is a single-layer graphene.
  • solid electrode plates of different sizes and materials can be selected.
  • the inner rear wall of the box 3 is attached with an additional heat sheet 3-9
  • the inner left wall is attached with an additional heat sheet 3-2
  • the inner right wall is attached with an additional heat sheet 3-11.
  • the inner and lower walls are attached with additional heat sheets 3-14
  • the inner and upper walls are attached with additional heat sheets 3-16.
  • the heating sheets used are all silicon rubber heating sheets with a size of 10cm ⁇ 10cm.
  • a temperature sensor 3-8 is installed on the internal iron stand 3-7 of the box 3, the height of which is the same as the height of the solid electrode plate; a temperature controller 4 and a temperature controller 4 are installed on the outside of the top of the box 3 It is connected with the heating plate and the temperature sensor through a wire; in this embodiment, the target temperature is set to 26°C, the actual ambient temperature measured by the temperature sensor 3-8 is 20°C, and the temperature controller controls 4 to turn on the heating plate circuit , Heat the box 3.
  • the liquid tank 3-12 is placed on the lifting platform 3-13, and the liquid tank is adjusted by the lifting platform 3-13
  • the height of 3-12 makes the solid electrode plate 3-10 directly above the liquid tank 3-12.
  • the height of the lifting platform 3-13 can be increased so that the solid electrode plate 3-10 is immersed in the liquid tank 3.
  • the size of the liquid tank 3-12 used is 12cm ⁇ 12cm.
  • a liquid tank whose size is slightly larger than the size of the solid electrode plate can be selected as required.
  • the multi-channel liquid dripping unit includes a multi-channel peristaltic pump 6, a container 7, a hose 5, and a liquid collection device 3-6; the hose 5 is installed in On the peristaltic pump 6, one end is connected to the liquid collection device 3-6, and the other end is placed in the container 7 containing the liquid. Under the action of the peristaltic pump 6, the solution flows to the liquid collection device 3-6 through the hose 5, and is collected by the liquid.
  • the outlet of the lower end of the device 3-6 flows out and drips to the solid electrode plate 3-10; the peristaltic pump 6 and the liquid container 7 are placed on the right outside the box 3 on a horizontal surface; in this embodiment, the liquid container 7 is Two small beakers, different solutions are placed in the two small beakers, the peristaltic pump 6 uses two channels, sets the dripping rate of the peristaltic pump, and draws the solution in the two beakers to the solid electrode plate 3-10 dropwise.
  • the signal acquisition and display unit is an oscilloscope 1, which is placed on the left outside of the cabinet 3;
  • the oscilloscope 1 displays an instantaneous electrical signal, and records the electrical signals generated by different solutions dropping onto the solid electrode plate 3-10.
  • solid electrode plates of different sizes can be clamped by the clamps, and the solid electrode plates can be tilted at a certain angle.
  • the temperature control module, the multi-channel liquid dropping unit, the signal acquisition and display unit, and the The lifting tank realizes the measurement of the triboelectric signal generated by the liquid droplet and the solid electrode plate under different experimental conditions.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)

Abstract

一种测量液体混合滴加产生电信号的实验装置，包括箱体（3）、多通道液体滴加单元、实验温度控制模块、用于与液滴撞击及摩擦的发电单元、用于夹持发电单元的夹持装置、用于盛放及收集液体的可升降液槽、以及用于采集电信号图像的显示单元，实验装置能够实现在不同温度条件下，不同大小及厚度的固体电极（3-10）处于大气环境或液体环境时与不同溶液互相滴加产生的摩擦电信号的研究，对微观摩擦学的研究具有重要的价值及意义。

Description

一种测量液体混合滴加产生电信号的实验装置 技术领域
本发明涉及一种测量液体混合滴加产生电信号的实验装置，属于固液摩擦发电研究领域。
背景技术
摩擦电在自然界中无处不在，比如梳头、走路、穿衣等，只要两个物体相互接触，都会发生电荷的交流。近年来，对摩擦电的研究与利用越来越多，比如通过固-固界面摩擦实现自驱动传感和多种形式的机械能的收集，通过固-液界面摩擦实现波浪能收集和雨滴发电等。关于固-液摩擦发电领域，尤其是液滴与固体之间摩擦发电的研究，还有很多问题需要探索。溶液在与固体摩擦副接触时，能够产生瞬时的电信号。但由于固液摩擦发电测试条件的可变量多，还没有较为专业的固液摩擦起电测试装置。因此，有必要设计一种测量液体混合滴加产生电信号的实验装置，用于在不同环境条件下的固液摩擦电信号的测量，对界面电荷的摩擦影响研究具有指导意义。
发明内容
为实现上述目的，本发明提出了一种测量液体混合滴加产生电信号的实验装置。本发明主要采用如下技术方案：
一种测量液体混合滴加产生电信号的实验装置，包括：
箱体，用于放置组成实验装置的各部件。
多通道液体滴加单元，用于将不同的溶液滴加在固体电极板上。
实验温度控制模块，用于改变实验的温度条件。
摩擦发电单元，用于与所述滴落的不同溶液发生摩擦并产生电信号。
夹持装置，用于固定和支撑不同厚度、大小的固体电极板，并可实现固体电极板与水平面之间呈一定角度的倾斜。
可升降液槽，用于收集废液或浸泡固体电极板。
信号采集显示单元，用于实时采集并显示固液摩擦所产生的电信号。
进一步地，上述箱体包括壳体和门；箱体内部底面左右两边各有两根导轨；门为具有一定弧度的玻璃门。
进一步地，上述多通道液体滴加单元包括多通道蠕动泵、盛装液体的容器、软管、和液体汇集装置；所述软管安装在蠕动泵上，一端与液体汇集装置相连，另一端置于盛装液体的容器内；所述蠕动泵和盛装液体的容器在箱体外，放置在水平面上；所述盛装液体的容器是烧杯，烧杯的数量和规格根据实验所需要的溶液种类和体积来确定；所述液体汇集装置为中空的壳体结构，液体汇集装置上半部分为圆柱形，圆柱侧面有若干个小孔，小孔的直径略大 于软管直径，用于连接软管；所述液体汇集装置的下半部分为圆锥形，锥顶开有小孔，溶液经小孔滴到固体电极板上，与固体电极板产生摩擦电荷；所述液体汇集装置安装于铁架台上；所述铁架台的铁棍上刻有高度线，液体汇集装置可沿铁棍上下移动，根据实验需要调节液体汇集装的高度。
进一步地，上述实验温度控制模块包括加热片、温度控制器、温度传感器和导线；所述温度控制器带有数字显示屏和设置按钮，可设定目标温度和实时显示温度传感器测得的实际温度，放置在箱体外，安装在箱体顶端，通过导线分别与加热片和温度传感器相连，用于控制加热片的工作状态和传输温度信号；所述温度传感器安装在铁架台上，高度与固体电极板高度一致，对固体电极板周围的温度进行测定；所述加热片为硅橡胶加热片，共有五片，分别贴附在箱体内部的顶端、底端、左端、右端和后端，对实验箱体内部进行立体式加热。
进一步地，上述摩擦发电单元包括固体电极板、导电银胶、硅胶和导线；所述固体电极板两端使用导电银胶与导线实现欧姆连接；所述硅胶涂覆在导电银胶表面，防止电路短路；所述固体电极板包括基材和摩擦副；所述基材为聚四氟乙烯；所述摩擦副为单层石墨烯，附着在聚四氟乙烯基材上。
进一步地，上述夹持装置包括角位移台支架、角位移台、上夹板、下夹板、弹簧、拉杆和悬臂；所述角位移台支架安装在箱体底部的导轨上，可沿导轨左右移动；所述角位移台安装在角位移台支架上，由螺钉固定，在角位移台支架的带动下，可左右移动；所述悬臂装在角位移台侧面，由螺钉连接；所述悬臂上安装有下夹板和上夹板，所述上夹板与所述拉杆固接在一起，拉杆上套有弹簧，使得上下夹板处于闭合状态；所述角位移台可在一定角度范围内旋转，从而带动悬臂倾斜一定角度；所述夹持装置有两个，对称安装在箱体的导轨上，两个夹持装置共同夹住固体电极板的两边；所述夹持装置通过拉杆调节上下夹板张口的大小，夹持不同厚度的固体电极板。
进一步地，上述可升降液槽包括升降台和液槽；所述升降台安装在箱体底端左右导轨的中间；所述液槽自由放置在升降台上，通过调节升降台来控制液槽的高度；所述液槽有不同的规格，实验时一般选择尺寸略大于固体电极板尺寸的液槽。
进一步地，上述信号采集单元为示波器或精密万用表或其他测电设备；所述示波器或其他测电设备的的正负极导线分别与固体电极板两端的导线相连，形成一个导通的通路。
本发明提出的一种测量液体混合滴加产生电信号的实验方法包括以下步骤：
根据固体电极板实验所需的倾斜角度，将左右角位移台的旋转角度调成一致；
调节左右夹持装置的间距，使间距能够适应固体电极板的宽度，并将固体电极板夹持住；
将固体电极板两端的导线与示波器相连；
调节升降台高度，若实验为液体环境，升降台上升至固体电极板能正好浸没在液槽内；若实验为大气环境，调节液槽不与固体电极板接触；
向烧杯中放入实验所需的溶液；
调节液体汇集装置的高度；
设定多通道蠕动泵的流速；
关闭箱门，打开温度控制器，设定实验所需温度；
当温度传感器测得的温度达到实验所需温度时，打开示波器；
启动多通道蠕动泵，使液滴以一定的流速撞击固体电极板，产生摩擦电信号；
通过示波器实时观测电信号并记录电信号。
本发明带来的有益技术效果：
本发明能够测试液滴与固体电极之间的摩擦电信号，同时结合温度控制模块和多通道蠕动泵，从而实现在不同温度条件下，不同大小及厚度的固体电极处于大气环境或液体环境时，不同溶液滴落并撞击电极板而产生的摩擦电信号的研究，对微观摩擦学的研究具有重要的价值及意义。
附图说明
图1是本发明的总体外观图。
图2是箱体内部总体结构示意图。
图3是另一个视角下的总体结构示意图。
图4是角位移台与角位移台支架的结构示意图。
图5是夹持装置的结构示意图。
图6是摩擦发电单元结构示意图。
图7是可升降液槽的结构示意图。
图8是多通道液体滴加单元的结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部实施例。
因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员 在没有创作性劳动前提下所获得的所有其他实施例，都属于本发明的保护范围。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本发明的描述中，需要说明的是，术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此，不能理解为对本发明的限制。
在一个实施例中，系统包括：
箱体，用于放置组成实验装置的各部件。
多通道液体滴加单元，用于将不同的溶液滴加在固体电极板上。
实验温度控制模块，用于改变实验的温度条件。
摩擦发电单元，用于与所述滴落的不同溶液发生摩擦并产生电信号。
夹持装置，用于固定和支撑不同厚度、大小的固体电极板，并可实现固体电极板与水平面之间呈一定角度的倾斜。
可升降液槽，用于收集废液或浸泡固体电极板。
信号采集显示单元，用于实时采集并显示固液摩擦所产生的电信号。
本实施例中，如图1、图2和图3所示，箱体3的两侧面分别安装一扇弧形玻璃门3-15和弧形玻璃门3-17，分别可绕其转动轴旋转90°，向箱体外侧打开；箱体3的底面上有四根导轨3-1，左右两侧各两根，每两根导轨为一组，每组导轨上安装一个角位移台支架3-3，可沿导轨左右滑动，角位移台支架3-3上安装一个角位移台3-4，由螺钉连接在一起；角位移台3-4的侧壁连接有夹具3-5，由螺钉连接在一起；移动左右两侧角位移台支架3-3，使左右两夹具3-5的间距能够夹持住固体电极板3-10；调节左右角位移台3-4的旋转角度为0°，使夹持的固体电极板3-10呈水平放置，对于其他实施例，可以调节左右角位移台旋转0°至60°，使固体电极板3-10呈一定角度倾斜。
本实施例中，如图2、图5和图6所示，夹具3-5的上夹板3-5-3可沿滑槽3-5-4上下滑动，根据需要调节张口大小，以适应不同厚度的电极板；夹具3-5在被压缩的弹簧3-5-2的张力作用下，将固体电极板3-10夹紧；固体电极板3-10的尺寸为10cm×10cm，厚度为2mm，固体电极板3-10的基材为聚四氟乙烯，基材上附着的摩擦副为单层石墨烯，对于其他实施例，可以选择不同尺寸、材料的固体电极板。
本实施例中，如图2和图3所示，箱体3的内后壁贴附加热片3-9，内左壁贴附加热片3-2，内右壁贴附加热片3-11，内下壁贴附加热片3-14，内上壁贴附加热片3-16，所用加热片 均为硅橡胶加热片，尺寸为10cm×10cm，对于其他实施例可选用不同尺寸及材质的加热片；箱体3的内部铁架台3-7上安装有一个温度传感器3-8，其高度与固体电极板所处高度一致；箱体3顶端外侧安装有温度控制器4，温度控制器4通过导线与加热片和温度传感器连接在一起；本实施例中，设定目标温度为26℃，温度传感器3-8测得的实际环境温度为20℃，温度控制器控制4接通加热片电路，对箱体3进行加热。
本实施例中，如图2和图7所示，在左右滑轨的中间为升降台3-13，液槽3-12放置于升降台3-13上，通过升降台3-13调节液槽3-12的高度，使固体电极板3-10处于液槽3-12的正上方，对于其他实施例，可增加升降台3-13的高度，使固体电极板3-10浸泡在液槽3-12内；所用液槽3-12尺寸为12cm×12cm，对于其他实施例，可根据需要选择尺寸略大于固体电极板尺寸的液槽。
本实施例中，如图2和图8所示，多通道液体滴加单元包括多通道蠕动泵6、盛装液体的容器7、软管5、和液体汇集装置3-6；软管5安装在蠕动泵6上，一端与液体汇集装置3-6相连，另一端置于盛装液体的容器7内，溶液在蠕动泵6的作用下，通过软管5流向液体汇集装置3-6，经液体汇集装置3-6下端出口流出，滴向固体电极板3-10；蠕动泵6和盛装液体的容器7在箱体3外部右侧，放置在水平面上；本实施例中，盛装液体的容器7为两个小烧杯，两个小烧杯内放置不同的溶液，蠕动泵6使用两个通道，设定蠕动泵的滴加速度，分别抽取两个烧杯中的溶液向固体电极板3-10滴加。
本实施例中，如图2所示，信号采集显示单元为示波器1，置于箱体3外部左侧；示波器1的正负极分别通过导线2与固体电极板3-10相连，当溶液经过液体汇集装置3-6滴向固体电极板3-10的表面时，示波器1显示一个瞬时电信号，记录不同溶液滴向固体电极板3-10产生的电信号。
本公开实施例至少带来如下有益技术效果：
本公开实施例可以通过所述的夹具来夹持不同尺寸的固体电极板，并可使固体电极板呈一定角度倾斜，同时结合温度控制模块、多通道液体滴加单元、信号采集显示单元和可升降液槽，实现对液滴与固体电极板在不同实验条件下产生的摩擦电信号的测量。
本发明未尽事宜为公知技术。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (10)

  1. 一种测量液体混合滴加产生电信号的实验装置，包括：
    箱体，用于放置组成实验装置的各部件；
    多通道液体滴加单元，用于将不同的溶液滴加在固体电极板上；
    实验温度控制模块，用于改变实验的温度条件；
    摩擦发电单元，用于与所述滴落的不同溶液发生摩擦并产生电信号；
    夹持装置，用于固定和支撑不同规格的固体电极板，并实现固体电极板与水平面之间呈一定角度的倾斜；
    可升降液槽，用于收集废液或浸泡固体电极板；
    信号采集显示单元，用于实时采集并显示固液摩擦所产生的电信号；
    多通道液体滴加单元放置在箱体外部，运输液体至箱体内部摩擦发电单元的正上方；实验温度控制模块分布在箱体的各内表面；夹持装置安装在箱体内底部的导轨上，夹持摩擦发电单元；摩擦发电单元的正下方箱底底面上固定连接可升降液槽；信号采集显示单元放置在箱体外部，通过导线与摩擦发电单元连接。
  2. 根据权利要求1所述的系统，其特征在于，所述箱体包括壳体和门；所述箱体内部底面左右两边各有两根导轨；所述门为具有一定弧度的玻璃门，扇叶安装在箱体的侧面，所述玻璃门关闭时能够将箱体封闭。
  3. 根据权利要求1所述的系统，其特征在于：所述多通道液体滴加单元包括多通道蠕动泵、盛装液体的容器、软管、和液体汇集装置；所述软管安装在蠕动泵上，一端与液体汇集装置相连，另一端置于盛装液体的容器内，溶液在蠕动泵的作用下，通过软管流向液体汇集装置，经液体汇集装置下端出口流出，滴向固体电极板；所述蠕动泵和盛装液体的容器在箱体外，放置在水平面上。
  4. 根据权利要求1所述的系统，其特征在于：所述实验温度控制模块包括加热片、温度控制器、温度传感器和导线；所述温度控制器通过导线分别与加热片和温度传感器相连，用于控制加热片的工作状态和传输温度信号。
  5. 根据权利要求1所述的系统，其特征在于：所述摩擦发电单元包括固体电极板、导电银胶、硅胶和导线；所述固体电极板两端使用导电银胶与导线实现欧姆连接；所述硅胶涂覆在导电银胶表面；所述固体电极板包括基材和摩擦副，摩擦副附着在基材上。
  6. 根据权利要求1所述的系统，其特征在于：所述夹持装置包括角位移台支架、角位移台、上夹板、下夹板、弹簧、拉杆和悬臂；所述角位移台支架安装在箱体底部的导轨上；所述角位移台安装在角位移台支架上，由螺钉固定；所述悬臂装在角位移台侧面；所述悬臂上安装有下夹板和上夹板，所述上夹板与所述拉杆固接在一起，拉杆上套有弹簧；所述角位移 台能够在一定角度范围内旋转，从而带动悬臂倾斜一定角度；所述夹持装置有两个，对称安装在箱体的导轨上，两个夹持装置共同夹住固体电极板的两边；所述夹持装置通过拉杆调节上下夹板张口的大小，夹持不同厚度的固体电极板。
  7. 根据权利要求1所述的系统，其特征在于：所述可升降液槽包括升降台和液槽；所述升降台安装在箱体底端左右导轨的中间；所述液槽自由放置在升降台上，通过调节升降台来控制液槽的高度；所述液槽有不同规格，实验时选择尺寸大于固体电极板尺寸的液槽。
  8. 根据权利要求1所述的系统，其特征在于：所述信号采集单元为示波器或精密万用表或其他测电设备；所述示波器的正负极导线分别与固体电极板两端的导线相连，形成一个导通的通路。
  9. 根据权利要求3所述的系统，其中，所述液体汇集装置为中空的壳体结构，液体汇集装置上半部分为圆柱形，圆柱侧面有若干个小孔，小孔的直径大于软管直径，用于连接软管；所述液体汇集装置的下半部分为圆锥形，圆锥形的顶部开有小孔，溶液经小孔滴到固体电极板上，与固体电极板产生摩擦电荷；所述液体汇集装置安装于铁架台上。
  10. 一种测量液体混合滴加产生电信号的实验方法，包括权利要求1至16任一所述系统，包括以下步骤：
    S1根据固体电极板实验所需的倾斜角度，将左右角位移台的旋转角度调成一致；
    S2调节左右夹持装置的间距，使间距能够适应固体电极板的宽度，并将固体电极板夹持住；
    S3将固体电极板两端的导线与示波器相连；
    S4调节升降台高度，若实验为液体环境，升降台上升至固体电极板能正好浸没在液槽内；若实验为大气环境，调节液槽不与固体电极板接触；
    S5向烧杯中放入实验所需的溶液；
    S6调节液体汇集装置的高度；
    S7设定多通道蠕动泵的流速；
    S8关闭箱门，打开温度控制器，设定实验所需温度；
    S9当温度传感器测得的温度达到实验所需温度时，打开示波器；
    S10启动多通道蠕动泵，使液滴以一定的流速撞击固体电极板，产生摩擦电信号；
    S11通过示波器实时观测电信号并记录电信号。
PCT/CN2020/123791 2020-05-23 2020-10-27 一种测量液体混合滴加产生电信号的实验装置 WO2021238043A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010444526.4 2020-05-23
CN202010444526.4A CN111537804A (zh) 2020-05-23 2020-05-23 一种测量液体混合滴加产生电信号的实验装置

Publications (1)

Publication Number Publication Date
WO2021238043A1 true WO2021238043A1 (zh) 2021-12-02

Family

ID=71980819

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/123791 WO2021238043A1 (zh) 2020-05-23 2020-10-27 一种测量液体混合滴加产生电信号的实验装置

Country Status (2)

Country Link
CN (1) CN111537804A (zh)
WO (1) WO2021238043A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111537804A (zh) * 2020-05-23 2020-08-14 北京工业大学 一种测量液体混合滴加产生电信号的实验装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869722A (en) * 1988-01-20 1989-09-26 Measurement Resources Inc. Flow monitor of liquid drops
CN108627707A (zh) * 2018-08-16 2018-10-09 大连海事大学 一种液滴表面zeta电势检测装置及方法
CN110208614A (zh) * 2019-05-22 2019-09-06 西安交通大学 一种基于固液混合液滴的摩擦发电测试系统及方法
CN110687146A (zh) * 2019-10-14 2020-01-14 北京工业大学 一种电致变色薄膜的x衍射原位测试装置
CN111537804A (zh) * 2020-05-23 2020-08-14 北京工业大学 一种测量液体混合滴加产生电信号的实验装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109060805A (zh) * 2018-08-22 2018-12-21 北京理工大学 一种用于研究液滴群蒸发运动特性的实验装置及方法
CN209624275U (zh) * 2018-10-24 2019-11-12 陕西科技大学 一种用于研究液体环境对摩擦试验影响的实验装置
CN110940618B (zh) * 2019-12-10 2021-01-15 西安交通大学 基于固液两相流体耦合起电的在线磨粒监测系统及方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869722A (en) * 1988-01-20 1989-09-26 Measurement Resources Inc. Flow monitor of liquid drops
CN108627707A (zh) * 2018-08-16 2018-10-09 大连海事大学 一种液滴表面zeta电势检测装置及方法
CN110208614A (zh) * 2019-05-22 2019-09-06 西安交通大学 一种基于固液混合液滴的摩擦发电测试系统及方法
CN110687146A (zh) * 2019-10-14 2020-01-14 北京工业大学 一种电致变色薄膜的x衍射原位测试装置
CN111537804A (zh) * 2020-05-23 2020-08-14 北京工业大学 一种测量液体混合滴加产生电信号的实验装置

Also Published As

Publication number Publication date
CN111537804A (zh) 2020-08-14

Similar Documents

Publication Publication Date Title
WO2021238043A1 (zh) 一种测量液体混合滴加产生电信号的实验装置
CN101865807A (zh) 真实液滴法测试固-液动、静态接触角的仪器和方法
CN203757325U (zh) 绕环机摄像头安装调节支架
CN108216667A (zh) 一种多自由度无人机航拍自稳云台
CN107154205B (zh) 一种角度可调谐的容器沸腾换热实验装置及实验方法
CN206516189U (zh) 一种平抛运动轨迹显示物理教学实验仪
CN108406681A (zh) 一种电动执行器压装操作台
CN109030254A (zh) 一种元器件引线自动循环弯折试验机
EP3362606A1 (en) Pile set measurement apparatus
CN108344539A (zh) 一种自动化滴水试验装置
CN206619333U (zh) 一种生物教学用标本展示箱
CN215866263U (zh) 一种便携式接触角测量仪
CN215843924U (zh) 一种用于接线盒加工的循环加热式机械手点胶机
CN214896108U (zh) 一种适用于彩膜玻璃基板控温装置
CN211454841U (zh) 一种计算机网络技术教学用演示装置
CN216696036U (zh) 用于检验胶网熔化状态的紫外光检测设备
CN210632144U (zh) 液基细胞操作玻片固定装置
CN208781414U (zh) 一种便携式多媒体展示装置
CN207999624U (zh) 一种定向拍照支架
CN208362359U (zh) 一种便于调控观察的病毒培养装置
CN207107850U (zh) 外框套取料装置
CN212539448U (zh) 一种可控便携式温度传感器支架
CN217688430U (zh) 一种液滴采集测量装置
CN205435827U (zh) 一种新型化学实验装置
CN215340867U (zh) 一种扫描电镜的容纳装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20938269

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20938269

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 07.06.2023)

122 Ep: pct application non-entry in european phase

Ref document number: 20938269

Country of ref document: EP

Kind code of ref document: A1