The basic principle of design the automatic steric storehouse is discussed,including the design of transmission,hydraullic system in cargo platform and the freight train and track as well as the general layout. Every movement of hay stacker is controlled and managed by computer. The location precision and position detecting are realiged by delivering the binary codes into the system through the absolute encoders.
In the miniaturization development of large bit and high precision photoelectric absolute shaft encoder,small sized 25 bit high precision absolute encoders are successfully developed by means of a special absolute encoding technique and obtaining high quality grating signal with adding the analog quantities of multi head reading. Electrical interpolation and subdivision with high multiplying power have been achieved by means of single chip computer.
Compared with the traditional absolute optical encoder, the presented encoder has fewer code tracks and a simpler optical pattern, in favour of miniaturization and high precision of absolute encoders.
Precision index of the manufactured large ratio friction transmission prototype, such as transmission accuracy, least step, stability of the least step, load capacity is measured by the absolute rotary encoder.
Details of various hardware components chosen for the telescope, including hybrid-stepper motor, 16-bit absolute encoder and CAMAC-based programmable stepper motor controller, are discussed in this paper.
The absolute encoder has such advantages as fixed starting-point, reliable reading, and so on. But traditional absolute encoder is limited in use, because of its large number of rings and large size. So micro encoder is desired. This paper introduces design procedures about a micro absolute matrix encoder, including the design of absolute matrix code disk, working principle, procedure of matrix decode. The minimum radial size of traditional absolute encoder of 14 bits is φ130mm. While using matrix code disk...
The principle, mechanism, accuracy and reliability of 19-bit and 21-bit absolute photoelectric shaft angle encoder -with high accuracy are described. The accuracy and reliability of the absolute encoder is enchanced significantly by means of interpolation of phase-shift resistance and sectionally and repeatedly correcting. The results measured are as follows: resolution accuracy σ = ±0.6 angle second, angle measurement accuracyσ2= ±1.2 angle second for the encoder of 19-bit; andσ1= ±0.2, σ22 =±0.62 respesti...
The basic principle of design the automatic steric storehouse is discussed,including the design of transmission,hydraullic system in cargo platform and the freight train and track as well as the general layout.Every movement of hay stacker is controlled and managed by computer.The location precision and position detecting are realiged by delivering the binary codes into the system through the absolute encoders. [