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I am designing a voltage source and thinking to use encoder to increase or decrease the voltage. Confused which encoder to be used. since lots of varieties are available like absolute, incremental, .... Please help.
try these:
It IS possible, if you use absolute encoder somewhere in your mechanical elevator system.
Hi, Please find the Attachment and tell me about details of this components .these are used a single turn 9 bit absolute gray type encoder. Is this Leds are IR type? please reply maxim
Hi, I want to build a absolute encoder for measuring position. But i can't find the way to build the disc. Is there any way or source? Below is the figure of absolute encoder and the reference which i study.. Figure: 105735 Reference:
If you're using an incremental encoder then you have no way of knowing where the arm is when you first power up, so limit switches are an absolute necessity. On power-up you drive the arm in one direction until you see the limit switch; that's your "zero" point. If you are using an absolute encoder, then the limit switches (...)
You would need an encoder which generates already UVW signals or calculate from the absolute position(see ) or you take the sensorless approach using software in the motion controller. Enjoy your design work!
1) When measuring speed you dont need the absolute position rather you need change in position from previous position incremental encoder is the way. 2) Building absolute encoder is expensive for position control generally devices have incremental encoder with limit switches (check any deskjet HP (...)
You might use a magnet and an absolute single-chip encoder, like the iC-MH8, to get commutation signals directly out and compare them with the Hall-signale coming from the motor. Here you find the applications: . Enjoy your design work!
A single chip encoder plus a magnet could do the job easily giving an absolute position with 12-bit resolution: or a tooth or you could use a tooth wheel and a Hall sensor like the iC-MZ: . Enjoy your design work!
... absolute incremental encoder ... That doesn't make sense to me. Either it is absolute or incremental - not both. Keith
Incremental?...absolute?...environment?...speed?...hollow shaft? Ken
i have to use an absolute encoder which can give upto 13 bit data for the input clock provided by the master. so i am writing the code for master as whenever i need data from encoder the master will supply 14 clocks to slave(absolute encoder), and the slave will latch its data with the clock and send the (...)
Hello Guys, Is there any loss on accurency of read signal from an absolute encoder if I use a parallel2serial conversion IC ? Can anyone have experience on this?
A very good encoder solution for your small size would be the AS5145H-HSST from Austria Microsystems. It is a Magnetic Rotary encoder; (Meaning all you need is a rotating 2-pole magnet); Resolution 0.0879deg; got 2 Digital absolute Outputs; Serial/PWM & 3 Incremental Outputs and comes in a 16-Pin Shrink Small Outline Package. You can (...)
On-Line Tutorials - Galil: We Move The World scroll down the page under Miscellaneous you see the following which may be helpful. Controller Upgrade Options Various upgrades are presented including absolute and SSI encoder interfaces, backlash and leadscrew compensation, antifriction bia
Hello! I'm trying to write an absolute encoder simulator with my Spartan-3 beginner FPGA board. The problem I can't get a solution to is that my simulator gives out the first 24-bits correctly when clocked by the external Abs. encoder reader but after that the process stalls and repeats the 24-bit sequence after a random amount of time and (...)
The absolute encoder outputs an unique angle code ; It is more expensive for the angular resolution The relative encoder outputs differential angle pulses ;the attached intelligence must calculate the angle from a datum point. ; It is cheaper for the same angular resolution
Hi I need to use an encoder in my final year project. I need the encoder to record the movement of a voltage control knob. The knob will be rotated clockwise and anti-clockwise several times during its operation. The range of its movement will be limited between 0 - 70 degrees ( I am trying to achieve a resolution of 0.5 degrees, I understand th
Which kind of encoder will you use? Incramental or absolute?
I would rather go with ac motor than stepper and use absolute encoder to determine it position in any time. So if you cut off the power supply on motor, on next start you will know your absolute position (if that is important to you). Take the motor from some old washer or buy some equivalent. It has around 100W power. How long is that (...)
Hallo, Did have you right polarized supply, can you open it? May be it has a "antipolaryzing protection(parallel) diode" and it would be short_ or some electrolythic... What about the cabling/wiring from that? Is it absolute zero ohm? k.
Hi everyone, Im facing a problem in developing a algorithm for a sensor absolute encoder that need to count the number of rotation for example 5 rotation or 4.5 rotation (1 full rotation = 360degree) The characteristic of the absolute encoder is, the change of degree in rotation will also changing the duty cycle width of (...)
Hello, The closest thing seems to be an absolute encoder. Best regards
Hi IanP, I don't think without homing process, you can derive absolute position only from index channel feedback. For counting revolution number, a decoder counter with two channels is enough. No need for index channel. What do you think? Best regards, Bittware
What type of encoders are there? What are the properties of incremental encoders ? What's the difference than absolute encoders?
I need your help I must design a schematic which use to receive the input/output signals of absolute encoder using microprocessor If anyone knows about this field , pls help me. Thank you in advance !
Try to use absolute encoder. you can find good device at also for harsh industrial enviroment. bye Nesquik
Hi all Who knows a schematic to analog decode a quadrature encoder!? I think about using a frequency to voltage converter, but this solution only give to me the absolute velocity, not the direction.... How can I extrat with a analog circuit the rotation direction? the output voltage will be positive if rotational clockwise, and negative
encoders in general come in 2 main types, Incremental or absolute. An absolute encoder outputs ( usually in gray code or similar ) the exact radial postion as a number. Likewise, an incremental encoder simply outputs a square wave from which you must count the pulses. Most incremental (...)