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What is the difference between the absolute value encoder and adjustable resistor?

by:HENGXIANG     2020-12-04
What is the difference between the absolute value encoder and adjustable resistor? Automation technology release date: 2020 - 9 - Browse 11 246 encoder introduces the difference between the absolute value encoder and adjustable resistor are as follows: absolute encoder is resistance can be adjusted according to one of the change rule of resistance element, in fact, the absolute value encoder abroad also called adjustable resistance or variable resistor, but in the domestic adjustable resistance and is not an element of absolute value encoder, there's a difference between them. Tell from the structure and working principle of the adjustable resistance, absolute encoder and adjustable resistor basic similar, but not all finished, so they also exist similarities and differences, then what is the difference between absolute encoder with adjustable resistor, we see mainly from the following points: one, the manipulation of the handle: absolute encoder with manipulation of the handle, and adjustable resistor is not manipulation of the handle. Second, resistance distribution characteristics: absolute value encoder output has a variety of function characteristics, different resistance of absolute value encoder to the distribution characteristics are not the same; And the resistance of adjustable resistance distribution features of the body is the same. Three, united number: absolute value encoder has dual absolute value encoder, and adjustable resistance is not. Four, anti-jamming performance: absolute value encoder metal shell in the circuit grounding ( Manipulation of the handle are connected to the enclosure) So that the adjustment of the absolute value encoder disturbance is small, can be suppressing interference; No grounding pin and adjustable resistance, to adjust when the human body induction interference. Five, the installation position and frequency of use: absolute encoder is installed on the circuit board or on casing, either installation, his manipulation of the handle need to extend outside the casing, a convenient adjustment, the machine is in use process often adjust absolute value encoder; Installed on the circuit board and adjustable resistance, in use process usually do not adjust, only which can adjust the resistance in the troubleshooting. Absolute optical encoder, there are many light channel encoder scribed line, every groove in turn in lines to 2, 4, 8, 16 line arrangement, so, in every position of encoder, by reading each groove and the dark, get a set of zero power from 2 to the n - 2 One power of the only two hexadecimal code, this is called a n a absolute encoder. The encoder is made by light code disc for memory. Six, the use of the length of the: absolute value encoder firm structure, long service life. But because of the absolute value encoder to use frequently, and it has a mechanical movement, so often in the same machine absolute value encoder will be damaged in front of the adjustable resistance; And adjustable resistance of simple structure, easy to adjust the improper damage, life is short, but because the use frequency is low, so there is no show of short service life of he is bad. Seven, volume: volume of absolute encoder, firm structure, using the long. Wholesale from absolute value encoder single ring absolute value encoder to ring absolute encoder, absolute rotation, single ring absolute encoder to measure the light code disc in rotation of the scribed line, in order to get the only encoding, when more than 360 degree rotation, code back to the origin, so it doesn't conform to the principle of absolute coding only, this code can only be used to rotate 360 degrees within the scope of the measure, known as the single ring absolute encoder. Pull a coder is converting signals or data available in the form of communication, the transmission and storage of equipment, the angular displacement or linear displacement is converted into electrical signals, the former is called the encoder, which is referred to as a yardstick. Encoder signal output including sine wave, square wave, open collector, push-pull type, and other forms. And adjustable resistance is small in size, service life is shorter. Automation science and technology ( Shanghai) Co. , LTD. The main products are rotary encoder, photoelectric encoder, magnetoelectric encoder, composite encoder, bus encoder, absolute encoder, incremental encoder, miniature encoder, etc. A: on the stepper motor on the use of encoder is introduced in the next article: what is the servo motor encoder?
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