#X y z synchro resolver theory how to
#X y z synchro resolver theory serial

>I need to generate the two outputs X and Y. >I have the reference waveform, nominally 400Hz. >I have an input parameter, a decimal value from -180 to +180, coming >For a synchro, there are three paths, A B and C. Just scale the input sine wave to the outputs. >Referring to your diagram, how is the input angle to be encoded into On Tuesday, Februat 7:37:59 AM UTC+11, John Larkin wrote: Normal to multiply the excitation waveform, analog or digitally. You could do that if the excitation frequency were constant. >sinewaves of the appropriate phase and amplitude. >the reference zero crossings for the timing and then generate two >generating the two X and Y outputs relative to that, I would just use >So, if my theory is right about using the reference *phase* and You probably need bipolar multiplication, too, in the range -1 to 1. >to be a good sinewave and (b) the DACs I have, inside an ARM CPU, have >A multiplying DAC would be a good solution but (a) needs the reference Still be accurately extracted from the voltage ratios. On an airplane can be really ugly, 'wild power', but shaft angles can That's how a synchro or a resolver or an LVDT works. >phase and it is only the amplitude of X and Y that varies. >However your diagram suggests that all three sinewaves are always in >you can see the reference coming in on H (Z,C being the GND for that) >system, it means multiplication of the reference in the range -1,1. >'Phases' here doesn't mean continuous phase shifts in a synchro-like >Is this a 2-phase system? Synchros are 3 phases. The best designs are necessarily accidental. This was fun, used when developing a digital synchroscope. We've done similar things withДЄnalog multipliers, at higher frequencies, like for oil debris sensor

We do that sort of thing in our synchro simulators, with ADCs and DACsДЄnd DSP and transformer coupling. System, it means multiplication of the reference in the range -1,1. 'Phases' here doesn't mean continuous phase shifts in a synchro-like Is this a 2-phase system? Synchros are 3 phases. >The signals will go to various instruments used in aviation, for >or whether they are shifted symmetrically around the reference, or >I can't work out whether X and Y carry the heading between themselves The phase will be relative to the reference, somehow. >is represented using the two other sinewaves, which I will be >I *think* the reference would be an INPUT to this box, and the angle

#X y z synchro resolver theory how to

>What I can't get my head around is how to arrange the phases. >I think, also 400Hz but for reasons unrelated a lot more power >I could optionally also generate the reference one, possibly called Z >I am using two DACs to generate the two output sinewaves, 400Hz. >Yes, south can be both -180 or +180 but that's not a problem :)

>(for western headings) or 0 to +180 (for eastern headings).

#X y z synchro resolver theory serial

>It is a box which takes in serial data containing an angle, 0 to -180 >But I need some specific advice for something I am building. >the material is 50+ years old and it is really mostly quite simple. >I have read a lot about this subject and can see how it works.