RU227122U1 - Mobile device for determining coordinates and electrical potential - Google Patents

Abstract

The utility model belongs to the section of devices for measuring electrical and magnetic quantities, in particular, for measuring electrostatic fields. The problem to be solved by the claimed technical solution is to determine the electrical potential at a point on the surface and the coordinates of this point. This problem is solved due to the fact that in a mobile device for determining the coordinates of the electric potential, characterized in that it includes a housing with fasteners in the form of two clothespins located perpendicular to each other for stable fastening in the corner of a flat rectangular substrate; an angular encoder is attached to the housing, a linear encoder is attached to the shaft of which, a bar is attached to the slider at one end, and a probe is attached to the other end, which includes a holder, a conductive ball, which is in mechanical contact with a conductive spring, electrically connected to the voltmeter case; in this case, directional linear encoders and a voltmeter are electrically connected to a microcontroller located in the housing, to which a display mounted in the housing is connected. The result, which is provided by the given set of features, is the convenience and efficiency of determining the coordinates of the point of contact of the probe with the surface and the potential at this point.

Description

Technical field

The utility model belongs to the section of devices for measuring electrical and magnetic quantities, in particular, for measuring electrostatic fields.

State of the art

Device for determining the coordinates of the electric potential (RU patent No. 178350 U1 Bulletin No. 10 of March 30, 2018. Author(s): Skuibin B.G. et al.). This device makes it possible to find out the coordinate and potential of a point, but the large error in measuring the coordinate introduces instability into the experimental results, and the presence of the housing does not allow the device to be adapted for substrates of various sizes.

A method for measuring the potential on the surface of dielectric samples and a device for its implementation (RU patent No. 2118830 C1 dated September 10, 1998. Author(s): N.A. Koshilev et al.). This device allows you to find out the potential on the surface of a dielectric. However, it has disadvantages: the inability to accurately determine the coordinates of a point, the need for several measurements for each point, the impossibility of autonomous operation due to the need for manual data processing to obtain the potential value.

Disclosure of utility model

The problem to be solved by the stated technical solution is to create a convenient, safe and accurate device that allows you to measure the electrical potential at a point and the coordinates of a point on a surface.

This problem is solved due to the fact that the device uses a combination of linear and angular encoders to determine the coordinates and electrical potential, which ensures the accuracy of coordinate measurement and the mobility of the device, allowing it to be adapted for substrates of various sizes; in this case, the use of a conductive ball and a spring to ensure electrical contact of the voltmeter with the surface makes it possible to measure the electrical potential of points on the surface plane without damaging the surface under study.

The result, which is ensured by the given set of features, is the convenience and simplicity of the device when used for laboratory work related to an electrostatic field, which is very important for educational institutions where both teachers and students participate in experiments.

Implementation of a utility model

In fig. Figure 1 shows a mobile device for determining the coordinates and electrical potential at a point. In fig. Figure 2 shows the probe of this device.

A mobile device for determining coordinates and electrical potential includes a housing 1 with fasteners in the form of two clothespins 2 located perpendicular to each other for stable fastening in the corner of a flat rectangular substrate; an angular encoder 3 is attached to the housing, on the shaft of which a linear encoder 4 is attached, to the end of which a wheel 5 is attached, to the slider of which a probe 6 is attached, which includes a conductive ball 7, which is in mechanical contact with a conductive spring 8, electrically connected to the case with a voltmeter 9 through wire 10; in this case, the linear encoder 4, angular encoder 3 and voltmeter 9 are electrically connected to the microcontroller 11 located in the housing, to which the display 12 mounted in the housing is connected.

The device works as follows: using clothespins 2, the device is attached to the edge of the plate. Probe 6 is placed on the surface under study and moves along it. Linear encoder 4 and angular encoder 3 transmit information about the current coordinate of the probe position on the surface to microcontroller 11, and voltmeter 9 transmits information about the electrical potential to microcontroller 11. Information about the coordinate and potential at the point of contact is continuously transmitted to the microcontroller 11, and then displayed on the display 12

The advantage of the proposed device is its mobility and determination of the potential and coordinates at a certain point on the surface. The device can be used during laboratory work to study the electrostatic field, to construct equipotential and force lines of the electrostatic field.

Claims (1)

A mobile device for determining coordinates and electrical potential, characterized in that it includes a housing with fasteners in the form of two clothespins located perpendicular to each other for stable fastening in the corner of a flat rectangular substrate; an angular encoder is attached to the housing, on the shaft of which a linear encoder is attached, to the slider of which a probe is attached, including a conductive ball that is in mechanical contact with a current-conducting spring, electrically connected to a voltmeter located in the housing; in this case, the linear and angular encoders, as well as a voltmeter, are electrically connected to a microcontroller located in the housing, to which a display mounted in the housing is connected.