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vinash

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  1. HI all, I have fabricated a strain gauge sensor for biomedical application. The sensor would be embedded in the body.I am looking for a suitable miniature transeceiver to transmit the voltage signals by the sensor,Could someone please help me with this.... Thank you.
  2. Thank you so much for your help. Will work on it and let you know the results. Thank you again
  3. Hi, Thanks again, u"ve been helping a lot, i do apprrciate that. I think i will look into 80C51. I was thinking of using sockets and solder first and if it is successful, i thought of doing it in PCB. My budget is about $100. If i would like to interface it to a P.C. like what you did, could you please tell me how do i go about doing that.( what chips and procedures to follow). Thank you again.
  4. Thank you so much do appreciate your help. I do have another question. As for the amplification you had mentioned the UAF42 ICs. I would go through the chip. I would like to find out for the memory download, It would be great if you could suggest how i could go about storing the datas which i had obtained in a flashdrive or something. What type of microcontrollers would be suitable for these kind of applications. Thank you....
  5. I am very glad to hear from you.I am from the university in Singapore. How about you? Well with regards to polarity. i am not using an EMG, but using a piezoresistive sensor, hence the output is always positive. As for the information, i just only need to know the voltage output whenever there is any muscular force exertion, do you need any other information? As for the sampling rate, i think i have made a mistake, it is supposed to be just 1000Hz. Thank you, do appreciate your help...
  6. HI Thanks for your kindly and prompt reply. I appreciate your help. I am actually trying to build a sensor that is able to measure muscular forces around the elbow, whenever there is any muscular action (e.g bending of the arm and etc...) the sensor is able to give out voltage signals and based on the voltage signals, we are able to deduce the intensity of the force exertion. The output voltage direct from the signal without any amplification is between 0 to 50 mV. The sampling rate is about 1000KHZ. I am planning to have a display unit ( similar to the one mentioned in this website) and also a memory storage device ( e.g thumbdrive, MP3 player or PDA) that is constantly recording the signals that are obtained. The idea is for the person to use it anywhere and not restrict himself to places where there are computer and if this is not possible than of course computer would be the next best option for storage. I am from a mechanical engineering background and not very familiar with the electronics chips and microcontrollers. If you could help me with more specifics of the components and the typs of components to use and also provide me some information ( e.g goodwebsites) on programming the microcontroller for this application, i would be very grateful to you. Thank you.
  7. I am trying to build the LED digital voltmeter that is given in the electronics lab webpage.I would than attach it to my sensor which gives a voltage output. After i have built the digital voltmeter, i would like to concurrently display the voltage output and also simultaneously record the readings that is displayed on the LED digital voltmeter. Could someone be able to help me in this? How do i go about doing that. Any help is greatly appreciated........
  8. Hi, i do have queries with regards to the LED display Digital Voltmeter. I am from a mechanical background and do not have much knowledge in electronic devices. I am currenlty trying to build a Led digital voltmeter. I would like to find out whether we have to programme the ICL7107 chip to display the voltage output or just need to buy the chip and connect according to the specifictions given in http://www.electronics-lab.com/projects/test/014/. Is the ICL7107 chip pre-programmed already? Thank you....
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