LTN Servotechnik encoder LTN Servotechnik model LTN Servotechnik price

LTN Servotechnik encoders provide an absolutely unique position, are interference-resistant, and do not require power-loss memory. They are increasingly widely used for angle and length measurement and positioning control in various industrial systems. Absolute rotary optical encoders, due to their absolutely unique position, interference resistance, and lack of need for power-loss memory, are increasingly widely used for angle and length measurement and positioning control in various industrial systems. The optical code disk of an absolute encoder has many tracks; each track is arranged sequentially with 2 lines, 4 lines, 8 lines, 16 lines... In this way, at each position of the encoder, by reading the light/dark state of each track, a unique 2-base code (Gray code) is obtained, ranging from the zeroth power of 2 to the n-1th power of 2. This is called an n-bit absolute encoder. Such an encoder is determined by the mechanical position of the code disk and is unaffected by power outages or interference. The uniqueness of each position in an absolute encoder is determined by its mechanical position; it requires no memory, no reference point search, and no continuous counting. The position is read only when needed. Thus, the encoder's interference resistance and data reliability are significantly improved. Since absolute encoders are clearly superior to incremental encoders in positioning, they are increasingly used in industrial control positioning. Due to their high precision and large number of output bits, if parallel output were still used for absolute encoders, each bit's output signal would need to ensure excellent connection, and isolation would be required for complex conditions. The large number of cable cores brings considerable inconvenience and reduces reliability. Therefore, for multi-bit output types, absolute encoders generally use serial or bus-type output. For German-made absolute encoders, the most common serial output is SSI (Synchronous Serial Interface). A single-turn absolute rotary encoder measures the tracks on the optical code disk during rotation to obtain a unique code. When rotation exceeds 360 degrees, the code returns to the origin, which violates the principle of absolute encoding uniqueness. Such encoders can only be used for measurements within a rotation range of 360 degrees and are called single-turn absolute encoders. To measure rotation beyond a 360-degree range, a multi-turn absolute encoder is required. Manufacturers of absolute encoders use the mechanical principle of clock gears. As the central code disk rotates, another set of code disks (or multiple sets of gears and code disks) is driven via gear transmission. Count encoding is added to the single-turn encoding to expand the encoder's measurement range. Such absolute encoders are called multi-turn absolute encoders. They also determine the code by mechanical position, ensuring each position code is unique and non-repeating without requiring memory. Another advantage of multi-turn encoders is that the large measurement range often provides ample margin in actual use. Thus, during installation, there is no need to struggle to find the zero point; an intermediate position can serve as the starting point, greatly simplifying installation and commissioning. Multi-turn absolute encoders have clear advantages in length positioning and are increasingly used in industrial control positioning.

LTN Servotechnik encoder precision

(1) Uses a code disk with 8421 coding. Although relatively simple, it imposes strict requirements on the manufacturing and installation of the code disk; otherwise, erroneous codes may occur. When the brush transitions from binary code 0111 to 1000, bit 7 should change to 8. However, if the brushes do not enter the conductive areas simultaneously, any decimal number between 8 and 15 may appear. This results in the aforementioned non-single-value error. One method to resolve this issue is to use a cyclic code disk. Based on the characteristics of cyclic code, even if manufacturing and installation are inaccurate, the maximum error will be only one bit in the least significant position. Therefore, using a cyclic code disk offers higher accuracy than using a 8421 code disk. (2) Scanning method. The scanning method includes V scanning, U scanning, and M scanning. A single brush is installed on the least significant bit track, while two brushes are installed on each of the other bit tracks: one brush is positioned ahead of the measured position, called the leading brush; the other is placed behind the measured position, called the lagging brush. If the incremental width of the effective bit on the least significant bit track is z, then the distances corresponding to the brushes for each bit are 1x, 2x, 4x, 8x, and so on. Thus, at each definite position, the output level of the least significant bit brush reflects its true value. Since there are two brushes for the higher bits, two levels will be output. Based on the brush distribution and the pattern of code changes, to read the level value corresponding to the higher-order binary code for that position: when the brush on the lower-order track truly outputs "1", the true output on the higher-order track must be read from the lagging brush; if the brush on the lower-order track truly outputs "0", the true output on the higher-order track must be read from the leading brush. Since there is only one brush on the least significant bit track, its output represents the true position. This method is the V scanning method.

LTN Servotechnik encoder applications

The primary function refers to a program or device capable of compressing or decompressing digital video. It is the process of compression and potentially changing the video content format, converting an analog source to a digital source. Both audio and video require customizable compression methods. In terms of compression, the goal is to reduce occupied space. Any digital video requires signal transmission via a video encoder to better provide technical implementation for live video streaming. High-definition digital video codecs are video compression standards implemented through applications.

LTN Servotechnik encoder applications

This encoder uses relative counting for position measurement. Before operation, signals such as the pulse counts corresponding to speed change points, leveling points, and braking stop points are stored in respective memory units via programming. During elevator operation, the rotary encoder detects and software calculates the following signals in real time: the elevator's floor position, speed change point position, and leveling point position, thereby performing floor counting and issuing speed change and leveling signals.

Weidou Intelligent Technology specializes in selling German LTN Servotechnik rotary encoders, LTN Servotechnik incremental encoders, LTN Servotechnik absolute encoders, LTN Servotechnik optical encoders, LTN Servotechnik magnetic encoders, LTN Servotechnik shafted encoders, LTN Servotechnik hollow shaft encoders, LTN Servotechnik contact brush encoders, LTN Servotechnik angle encoders, LTN Servotechnik linear encoders, LTN Servotechnik digital encoders, LTN Servotechnik draw-wire encoders, LTN Servotechnik position encoders, LTN Servotechnik hollow bore encoders, LTN Servotechnik main shaft encoders. LTN Servotechnik original German imports. Customers are welcome to inquire and order.