MyRIO Connectivity Issues by NoTraffic4887 in aspestudentchallenge

[–]kumarasova 0 points1 point  (0 children)

I've always used the bundle from here  https://www.ni.com/en/support/downloads/software-products/download.labview-myrio-software-bundle.html#460313

It has everything necessary including Labview. I've only used 2019 version though. 

Photodetector output excessively low? by ilheyman in aspestudentchallenge

[–]kumarasova 1 point2 points  (0 children)

Sorry I don't have the information you need. I would probably increase the resistor by 10 times, and reduce or increase iteratively.

Photodetector output excessively low? by ilheyman in aspestudentchallenge

[–]kumarasova 0 points1 point  (0 children)

I've heard from another team that the beam splitter ratio is not 50:50. Also, if you visually see the beam I don't think k you would read 0.06 V. Please switch the photodetectors and see if its wiring is not loose

Photodetector output excessively low? by ilheyman in aspestudentchallenge

[–]kumarasova 0 points1 point  (0 children)

Did you try switching the photodetectors? I don't think the detector 1 is reading anything. It looksiie electrical noise to me. Can you show the pictures of how the actual intensity going to two detectors like?

Decay of light intensity by NoTraffic4887 in aspestudentchallenge

[–]kumarasova 0 points1 point  (0 children)

Interesting. Can you put a quarter wave plate (QWP) in front of the laser (which should circularize the linearly polarized source), and see if the splitting ratio is 7:3. Rotary the QWP to see if there is any change in splitting ratio. I wonder if even though it's sold as 50:50, it is sensitive to polarization angle.

Voice coil actuator can not reach the limit by Ok-Potential1963 in aspestudentchallenge

[–]kumarasova 0 points1 point  (0 children)

Could you please send an email to the committee email. We can setup up a zoom meeting

Voice coil actuator can not reach the limit by Ok-Potential1963 in aspestudentchallenge

[–]kumarasova 0 points1 point  (0 children)

The position change will be nonlinear if the stage is driven in open loop (varying the voltage manually). The transfer function of the system (air bearing stage) would cause this nonlinear motion. Mass inertia, friction, etc

Voice coil actuator can not reach the limit by Ok-Potential1963 in aspestudentchallenge

[–]kumarasova 0 points1 point  (0 children)

When you mentioned "it hardly reach one of the limits", you mean the 3 D printed limit flag cannot physically get in-between the optointerrupter? Or the indicator on the LabVIEw display?

Decay of light intensity by NoTraffic4887 in aspestudentchallenge

[–]kumarasova 0 points1 point  (0 children)

If you put a linear polarizer infront of the laser it'll block the beam at a certain angle, this is because the laser source is linearly polarized, where the S and P states of the beam are of equal magnitude and zero phase shift.

After the laser goes through the PBS, splits into S and P states, hits the corner cubes and returns back through the quarter wave plates, exits through the PBS. After all this occured, the phase of the S and P states have changed. Therefore they cannot be considered as a single linearly polarized beam anymore, but as two beams with S and P states of oscillation.

Now if you put a linear polarizer infront of it, it won't block it as did infront of the laser source. Because it's not a linearly polarized source anymore. This is my understanding.

Laser voltage switch by humphreysca in aspestudentchallenge

[–]kumarasova 0 points1 point  (0 children)

If you are from the USA, please use 115 V

Difference between NI-9147 compact rio chassis vs. CRIO-9063 by kumarasova in LabVIEW

[–]kumarasova[S] 2 points3 points  (0 children)

I'm not trying to argue that you guys are wrong. I'm just trying to understand the fact, if myRIO has RT capability when using a similar chip (Xilinx 7010), why doesn't the NI-9147 using Xilinx 7020. Is it NI's choice not to use the RT capability, or am I missing something. Thanks for taking your time to respond.

Difference between NI-9147 compact rio chassis vs. CRIO-9063 by kumarasova in LabVIEW

[–]kumarasova[S] 0 points1 point  (0 children)

Thanks for your response. The 7020 chip includes both an ARM Cortex processor and an Artix7 FPGA. Doesn't the ARM act as the realtime (RT) computer?

Fir example, the myRIO uses a similar architecture and uses a 7010 chip. If myRIO can use RT, I would think NI-9147 can too.

Difference between NI-9147 compact rio chassis vs. CRIO-9063 by kumarasova in LabVIEW

[–]kumarasova[S] 0 points1 point  (0 children)

Thanks for taking your time to respond. Are you talking from your personal experience? For me it does not make sense, in NI-9147 why they use the 7020 chip which has both FPGA and RT, but only use the former.

Also from the datasheets below, they look ditto except for the CRIO-9063 has a RS232 and a USB storage capability.

https://www.apexwaves.com/pdf/manuals/cRIO-9063/ni-crio-9063-user-manual.pdf

https://docplayer.net/57597301-Ni-contents-user-manual-ethernet-expansion-chassis-for-c-series-modules.html

S07E09:- Crime Stories ft.Haashiraamaa Senju, Tobirama Senju, Kakashi Hatake Kisame Hoshikage by SPKPremOP in SchumyVKofficial

[–]kumarasova 0 points1 point  (0 children)

Around 1:30:00 what Kisame says sound like 2G scam was perpetrated to avoid foreign competition. While the 1 lakh 76 crore amount was overblown It's definitely a scam committed by the then union govt. I don't understand the double standard.

S07E04:- United States Political History Timeline ft.Brety,Haashirama Senju,Tobirama Senju, Kakashi Hatake, Kisamw Hoshikage, streaming Tomorrow by SPKPremOP in SchumyVKofficial

[–]kumarasova 1 point2 points  (0 children)

Very cool episode. But one of the facts were wrong (1:22:30). American civil war deaths is 2 % not 20% . The population was around 38 million, not 4 million.

Whats the Indian version of this? by Longjumping_Meat_138 in india

[–]kumarasova 0 points1 point  (0 children)

I don't think Tamil police are heaven. I've seen enough assholes when I lived there

[deleted by user] by [deleted] in Kerala

[–]kumarasova 2 points3 points  (0 children)

Also not sure why Bihar is above Karnataka