GSR

How do you pre determine the number of module at the analyzing (beginning) phase of the program? Should I consider that LV is similar to other OOP like Java?

I just start to prepare CLD exam. I plan to take it next FEB or MAR. I spend 2 mins to read what is the "traffic light" exercise. It seems not relate to intermediate II course work. Does it mean intermediate II is not useful for CLD exam? Please give some suggestion TTHHAANNKKSS

I know there are channel A, B (maybe also Z) in a regular optical encoder. I just have a encoder card which say it is for Phase A+, A- , B+, B-. I guess Phase A = Channel A, but what is the + and - mean???

If you have it and want to sell it for a poor guy with a low cost, please reply this message or PM me Thanks

Yes!!!!

Dear all, I am building up an analog circuit for Electromyography (EMG) data collection, but I have to put isolation between the circuit and the human subject. A possible solution may be opto-isolator, does any opto-isolator support analog input and analog output?? I read wikipedia which says opto-isolator is using an LED inside the chip. If so, there may have some forward vlotage bias in the signal???

I got CLAD 10 month ago, and want to do CLD exam next March! I plan to read "The LabVIEW style book" I plan to work on all the exam exercise from ni.com I plan to get coupon from Developer day (I call ni today, they still have not decided the developer day locations) What else I need??

How long do you wait to get the result??

Does not work! Mr.D. schedule Mon, WED 9:30- 10:30 , then work outside for 5 hrs, then go home TUE, THU 10:00 - 14:00, then go home FRI 9:30 - 11:30, then go home How can we go to drink after work???

The wife is at work. -- His wife come because she uses the lab equipment for her personal use Shes very confrontational -- She and Mr.D. are only 22; and she acts like 16 Correct answer is Mr.D works here but not even show up and do nothing

Please NO ROFL! I need your suggestion!

Help me. Please.

I change Stupid to Mr.D to make it clear, thanks "So speak the truth, and be honest with your feelings both in your internal dialog and your outward expresions" <== Is that really OK in real world??

If you have read my previous stories (), here is the update Stupid name is Mr.D Mr.D wife talked to me in front of stupid and another guy, Mr.D wife: GSR, you are working so hard and make "Mr.D" seem do nothing Me: I am working so hard, because I always make mistake, so I need to fix them ( I am too nice to her) Mr.D wife: Do you mean "Mr.D" does not work? Me: NoNoNo! I just mean Mr.D never makes mistake ( Right, he never, because he never work. OR I need to stand behind him when he works) TODAY My boss come to me and ask me just set up everything for the "Mr.D" both building electronic hardware and programming. I say OK! But I have no clue why I need to help this guy. Should I just tell my boss that I really don't want help him because "Mr.D" has already said I am working so hard Please teach me what should I do

What do you think about them? I think (My information may not be right, just for discussion) LabVIEW A few small/middle size companies specifically do LabVIEW programming business Easy to use to communicate to hardwares, especially NI hardware Relative easy to interact with other programming language (talk to Matlab, etc) The language itself has the same tones for all it toolboxes Those sale people are extremely hard sale (e.g. we have a toolbox do exactly what Matlab does; and the price is only 20% of Matlab) technical support people are nice Graphical control is unknown. I am not sure how to use LabVIEW to do some graphic control, like draw a sun and a house. Can we do that?? Matlab/Simulink I could not find any companies specifically do Matlab/Simulink programming business Easy to use to communicate to many different company hardware IF the cards are support (I have an NI card which is not support by Matlab) Not sure how to interact with other language. I did use it to interact with Java2D which was OK. However, Simulink only allow to use C++ to do real-time graphic which needed to do many setting to communicate in between each others (I still don't know how to do that) In term of the tone of the language, Matlab is fine. Simulink is........... (I will need a $2000 toolbox to do running average under realtime window target. Stupid) Those sale people are ....... (They processed my thousands of dollar business two months after my request.) technical support people are too too nice. I thought I was talking to my maid. It is good if you have any unhappy thing happened, then you can called them

Does it support working VISA? and does the job location at MD?

What should the stupid ask me stupid question again, what should I say?? A) I told you last time that you should do this this this (the solution) <== I used a couple times B) You think I am working too hard. I am working hard to spend hours or days to find out solution, so you don't have to think and just need to come to ask me! C) I don't know D) I am too busy right now. Sorry Any other suggestion??

I have a labmate. He just finished B.S.; and thinks himself is a smart person . He is lazy (Only see him 12hrs a week.) . The things I teach him need to teach him again and again (e.g. sensors are needed to connect gounds; how PCI board connection. I even need to download the same data sheet again and again for him). 10 questions a day. Make a only 5 transistors circuit take a week and a few hours of my time to do problem solve for him . OK! fine (I am just too nice) My boss may want to motivate him, so tell him that his project is very important. The stupid labmate came to talk to me and tell me that my project is not the lab direction; and don't work too hard . I am just thinking to take over his small project after I finish up my stuff.

Thanks

Dear all, My boss asked me a question this morning. He wants to create a RLC circuit to control motor current to mimic a mechanical behavior. The behavior is a mass with two stiffness - varying springs (which stiffness is proportional to the distance) on each side of the mass. Two input forces on the end of the springs respectively. When we add Forces F1 and F2 to the springs on both end, the load (mass) will have net force F1-F2. Moreover, the stiffness changes depending on how far the springs compressed. Now, you have a motor, a voltage controlled current source and your knowledge to make the "current to torque ratio" in the motor system changes when you still able to control the torque preciously.

I doubt LV can identify two channels from the same sound card I will try to use two sound cards to start with

Do the online practice exam. It will help

Is EMG - Electromyography (EMG) is a technique for evaluating and recording the activation signal of muscles.

Thanks for your reply Yes! I have to use MC3479. Now I can control it, but I still need to figure out how to control it at varying speed

I like your summary! Thanks Eleminate the noise at its source (is a DC motor with funky brushes?) <==== Cannot do it Reduce the magnitude of the noise source (a well chosen pasive device may supress the noise)<==== not sure how to do it Contain the noise inside a shieded container <=== cannot do it because it will break the treadmill Prevent coupleing (move away from noise source) <=== cannot do it because the subject has to run on the treadmill Exclude noise from logic (shielded box) <=== I did; and also improve the whole shielding system a day ago