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Capacitive touch one machine and infrared touch one machine difference

Source: KONWHAI TOUCHAuthor: KONWHAI Date: 2019-08-09 Click:

  •      Touch one machine is an advanced touch screen, industrial control, computer and other technologies in one, can realize public information inquiry, with peripherals such as fingerprint instrument, scanner, card reader, micro printer, etc., can realize fingerprint attendance, credit card, printing, etc. Specific needs. The touch/controller is a touch product that bundles the touch screen and related software together with the package for inquiries. The touch-one machine truly combines touch and control, greatly improving people's work efficiency.
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  •      As an input device, the touch screen has many advantages such as ruggedness, fast response, space saving, and easy communication. Users can quickly get the information they want by simply touching the machine screen with their fingers, making human-computer interaction more straightforward. As a high-tech machine, the touch-one machine has gradually replaced the status of a simple touch screen, allowing users to truly feel the characteristics of human-machine interaction.
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  •      At present, the more mature touch technology touch screens have four- and five-wire resistive screens, surface acoustic wave screens, infrared screens, holographic nano-touch films and other excellent touch screens at home and abroad, which can meet the application needs of users in different regions and places. So, what is the difference between a capacitive touch integrated machine and an infrared touch integrated machine? KONWHAI touch one machine manufacturers Xiaobian for your answer.
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  • Capacitive touch one machine and infrared touch one machine difference

  •   The difference between capacitive touch one machine and infrared touch one machine:  
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  • 1. Different working principles
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  •      A capacitive touch screen is a layer of transparent special metal conductive material attached to the surface of the glass. When the screen is touched, due to the electric field of the human body, a coupling capacitor is formed between the finger and the conductor layer, and the current from the four electrodes flows to the contact, and the current intensity is proportional to the distance from the finger to the electrode, and the controller located behind the touch screen is The ratio and strength of the current are calculated, and the position of the touch point is accurately calculated.
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  •      The infrared technology touch screen is composed of infrared emitting and receiving sensing elements mounted on the outer frame of the touch screen, and an infrared detecting net is formed on the surface of the screen, and any touch object can change the infrared rays on the contacts to realize the touch screen operation. When there is a touch, the finger or other object will block the horizontal and vertical infrared rays passing through the position. When the touch screen scans and finds that there is an infrared light blocked, the red light is on, indicating that the infrared light is blocked, there may be a touch, and immediately change to another The coordinates are re-scanned. If another axis is found, there is also an infrared block, and the yellow light is on, indicating that the touch is detected, and the position of the two infrared traps that are found to be blocked is reported to the host, and the position of the touch point on the screen is determined through calculation.
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  • 2. Different appearance structure
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  •      The capacitive screen is purely flat, and the infrared screen has a groove, so it has an absolute advantage in structural design, a more beautiful appearance, and a waterproof surface. If used outdoors, the capacitive screen can resist light interference. In the case of infrared, there will be some interference under strong light, and there is stability, and the stability of the capacitive screen is better.
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  • 3. Difference in response speed
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  •      The response speed of the capacitive touch screen is 3ms, the fastest infrared is 8ms, and some are 15ms, so the response speed capacitive screen is faster.
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