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Touch screen working principle teaching instrument with calculation function and teaching method thereof

A working principle and touch screen technology, applied in the field of physics experiment teaching, can solve problems such as high integration, inability to teach and demonstrate, complex production process of four-wire resistive touch screen, etc., and achieve the effect of low cost and easier understanding

Inactive Publication Date: 2018-01-23
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the complex production process of the four-wire resistive touch screen, high integration and easy damage when disassembled, it cannot be directly used for teaching demonstrations
At present, there are no relevant reports on the teaching demonstration equipment and teaching methods of the principle of four-wire resistive touch screen

Method used

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  • Touch screen working principle teaching instrument with calculation function and teaching method thereof
  • Touch screen working principle teaching instrument with calculation function and teaching method thereof
  • Touch screen working principle teaching instrument with calculation function and teaching method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The variable resistance device is a sliding rheostat;

[0038] Select circuit A, connect the four binding posts at the lower end of the two sliding rheostats to the four-wire resistive touch screen USB control card 4 interface through the wires in the corresponding order, and select one binding post at the upper end of the two sliding rheostats to connect the normally open switch through the wires The two ends of 2 are connected, and the connection method is as attached figure 2 shown. Connect the four-wire resistive touch screen USB control card 4 to the computer, press the normally open switch 2 to conduct the circuit, select a piece of coordinate paper to record a certain original point on it, and record the two variable resistors corresponding to the point the location of the device;

[0039] Select circuit B, connect the two binding posts at the lower end of the sliding rheostat 11 in the x direction to the cd side of the double pole double throw switch 6, and c...

Embodiment 2

[0043] When variable resistance device is made up of resistance wire 12, rectangular slide rail 13 and insulation rod 14, resistance wire 12 is fixed on the insulation rod 14, and resistance wire 12 both sides are connected with lead 15, as attached Figure 4 shown;

[0044] Select circuit C, connect the variable resistance device composed of two resistance wires 12, two insulating rods 14 and rectangular slide rails 13 into the circuit with four-wire resistive touch screen USB control card 4, and the four-wire resistive touch screen USB control card 4 The other end is connected to a computer with a display screen through a USB interface, and two insulating rods 14 are placed vertically on the rectangular slide rail 13. The connection method is as attached Figure 5 shown. Select a piece of coordinate paper, press down the upper insulation rod, record a certain original point on the coordinate paper, and record the positions of the two insulation rods corresponding to this po...

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PUM

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Abstract

The invention discloses a touch screen working principle teaching instrument with a measuring function, which comprises two variable resistance devices arranged on a fixed base, a single-pole double-throw switch, a double-pole double-throw switch, a 5V DC power supply, a A voltmeter and a four-wire resistive touch screen USB control card, and the invention also discloses a teaching method of the teaching instrument. Using this experimental instrument to learn the working principle of the four-wire resistive touch screen is more intuitive and easier for students to understand, and it can enable students to understand the working principle of the four-wire resistive touch screen and the four-wire resistive touch screen more clearly. The role of ITO in.

Description

technical field [0001] The invention belongs to the technical field of physics experiment teaching, and in particular relates to a four-wire resistive touch screen working principle teaching instrument with a measuring and calculating function and a teaching method thereof. Background technique [0002] Touch screen, also known as "touch screen" or "touch panel", is an inductive liquid crystal display device that can receive input signals such as contacts. Drive various connecting devices according to pre-programmed programs, which can be used to replace mechanical button panels, and produce vivid audio-visual effects through liquid crystal display screens. As the latest computer input device, touch screen is currently the simplest, most convenient and natural way of human-computer interaction. It endows multimedia with a new look and is an attractive new multimedia interactive device. [0003] The four-wire resistive touch screen is mainly composed of a flexible top layer,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/18
CPCG09B23/186
Inventor 樊代和蔡志岩常相辉姜向东秦康智刘梦洁杨文和
Owner SOUTHWEST JIAOTONG UNIV