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Category | Angle sensor/ tilt sensor / Potentiometer |
Type | New item |
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Type | Pre-owned Items |
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รายละเอียดสินค้า
Working voltage: 5V Pulses per revolution: 20
The rotary encoder can count the number of pulses output during the forward and reverse rotation by rotating. The rotation count is not like a potentiometer. There is no limit to this rotation count. With the key on the rotary encoder, it can be reset to the initial state, that is, counting from 0 .
หลักการทำงาน
An incremental encoder is a rotary sensor that converts a rotational displacement into a series of digital pulse signals. These pulses are used to control angular displacement. The conversion of angular displacement in the Eltra encoder uses the principle of photoelectric scanning. The reading system is based on the rotation of a radial indexing disk (code disk) consisting of alternating light-transmitting windows and opaque windows, and is simultaneously illuminated by an infrared light source. . The receiver is covered with a layer of diffraction grating, which has the same window width as the code disc. The receiver's job is to sense the changes caused by the rotation of the disc, and then convert the light changes into corresponding electrical changes. Then the low-level signal is raised to a higher level, and a square pulse without any interference is generated, which must be processed by electronic circuits. The reading system usually adopts the differential method, that is, two different signals with the same waveform but a phase difference of 180 ° are compared to improve the quality and stability of the output signal. The reading is based on the difference between the two signals, eliminating interference. ![]() ![]() ![]() |
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Every item comes with a 30-day warranty. However, there are certain conditions that apply:
The customer should not be responsible for any self-inflicted damage, such as incorrect power connections (for example, supplying 5V instead of the required 3.3V for a sensor).
The product must be in perfect condition, without any breakage or damage caused by electricity (e.g., short circuits leading to electrical fires).
The store does not accept product exchanges due to customer misunderstandings, such as purchasing the wrong size for their project or buying something without eventually using it. Customers can inquire about the product details and ensure compatibility before making a purchase by contacting us through our Line account @modulemore during business hours. Please note that there may be delays in response between 12:00 PM and 2:00 PM.
Return Policy: To initiate a product return, customers must provide the original receipt or a copy for quick verification. Returns can be sent to our store address by following these guidelines:
Please note that the store reserves the right to make the final decision regarding product replacement or refund.
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Last updated | Sep 6, 2025 |