Rotary single absolute encoder and other common absolute encoder introduction

Absolute EncoderIt is a commonly used component thatAbsolute EncoderThe volume of the absolute encoder is much larger than that of the variable resistor, and the absolute encoder has a large or small appearance, with different shapes, and the specific characteristics of various absolute encoders are different. The specific features of various absolute encoders are different. Today, we will briefly introduce the appearance and features of several common absolute encoders.

1, Rotary single coupled absolute encoder:

This is an absolute encoder with a round shape, which has a metal shank, the length of which varies from absolute encoder to absolute encoder, some being quite long and others quite short. The handle can be rotated within a certain angle from left to right. However, it cannot rotate 360 degrees. This absolute value encoder is usually 3 with the pin, there are 4 reported pin, the fourth with the pin is connected to the shell of the pin (ground pin), in the circuit used to ground (alias: lightning rod), to eliminate the adjustment of the absolute value encoder when the human body to bring the dry close.

2, Straight slide type single coupled absolute encoder:

This is an absolute encoder with a rectangular structure. It has a vertically upward facing joystick, which can only slide in a straight line and cannot be rotated, and it has a pin tab on the lower part.

3, Rotary duplex absolute encoder:

It is similar to the rotary single absolute encoder, but it has two single absolute encoders, each with the same characteristics. The organization of the two single absolute encoders is adjusted with a single rotary handle, each of which has three pins.

4, Straight slide type duplex absolute encoder:

It is similar to the direct-slip single absolute encoder, which consists of two single absolute encoders, with a turnstile to control the organization of the two single absolute encoders to adjust, each single absolute encoder has three pins.

5, Straight slide type chip type absolute encoder:

Straight slide type SMD absolute encoder has no pins, he is very much smaller compared with the ordinary absolute encoder, mainly used in some very small appliances. Absolute encoder manufacturer by the mechanical position to determine the code, it does not need to memorize, no need to find the reference point, and do not have to count all the time, when you need to know the position, when to read its position. In this way, the anti-interference characteristics of the encoder, the reliability of the data is greatly improved.

6, Rotary chip absolute encoder:

Rotary chip absolute encoders, like ordinary rotary absolute encoders, change the resistance value by rotary adjustment.

7, Wire-wound multi-turn absolute encoder:

The structure of this absolute encoder is different from the ordinary absolute encoder, it can withstand the power (refers to the amount of work done by the object in a unit of time) is relatively large, and the adjustment of the resistance value can also be greater than 360 read rotation. Rope displacement sensor in accordance with the readout encoder can be divided into contact and non-contact two kinds. Contact with brush output, a brush contact conductive area or insulated area to indicate the state of the code is "1" or "0"; non-contact acceptance of the sensitive element is a photosensitive element or a magnetic element, the use of photosensitive elements to the light-transparent and light-impermeable area to indicate that the state of the code is "1" or "0"; non-contact acceptance of sensitive elements are photosensitive elements or magnetic elements, using photosensitive elements to light-transparent and light-impermeable area to indicate The state of the code is "1" or "0".

8, Precision absolute encoder:

Precision absolute encoders have high adjustment accuracy (precision) and are commonly used in some precision circuits.

9, Small absolute encoder with switch:

Commonly used to draw that controller, which is attached to a power switch, in absolute value encoder just started to rotate, first turn on the switch contacts in the absolute value encoder, and then rotate before the absolute value encoder adjustment. Waterproof encoder is a device that converts signals or data compilation into a form that can be used for communication, transmission, and storage, and converts angular displacement or linear displacement into an electrical signal, the former of which is called a code disk, and the latter of which is called a code scale. The signal output of the encoder includes various forms such as sine wave, square wave, open collector, push-pull and so on. There are also a very wide variety of such absolute encoders with switches, such as the volume absolute encoders in radios and the switches in some of the larger rotary absolute encoders. Absolute encoders with switches have two more pins than normal absolute encoders, which are contact pins for the power switch.