I want some suggestion from you about the sensors selection if you know some sensors name o ic number please tell me related to agriculture field. then please...
I don't think you understand the purpose of the Ref pin (pin 5) of the AD620. That is a GROUND reference, usually set to the ground potential of the...
Hi Doug, thanks for looking at my schematic! Vout = (Vin(+) - V(-)) * G + REF. You're right - REF = +5V wouldn't work for me. At the same time, I wouldn't...
I think it might work, but I also think it would be lesser cost just using a NTC to measure LED temperature, when compared with measuring LED light spectrum....
As I said the AD620 REF pin is USUALLY connected to the A/D analog ground potential. There are plenty of exceptions, such as when you want to remove an offset...
Hi Wagner, The power to the LED will be up to 1.8W (the LED is Osram LCW W5SG). Measuring of the forward voltage could allow to derive the tempratture of the...
In this case you need a formula to preview the LED temperature much before it happens.Thermal lag can simply destroy the LED in some cases, when it would be...
I have uploaded into Files > Virtual Diaphragm Microphone Information for how this microphone works. Some of you probably have ultrasound emitters/receivers...
In this case he is using the LED as a spectrometer source. He is not worried about maximizing power or thermal damage to the LED. He is very worried about...
Hi. Does anyone know how a Digital vernier caliper works ? I know that it uses multi-electrode capacitances... But do you know what is the principle of the...
In fact, i think that they get a sine and a cosine function of the displacement because of the geometry of the system (multiplate capacitances) and i would...
hello sir, I am Shahina.i of final year Bio-medical Engineering from Sri Ramakrishna Engineering College, Coimbatore. Sir, regarding our final year project, we...
Dear Shahina, I have been involved with EEG systems from the electronic side but I don't know the answer to your question. You would really need to ask an...
Commenting... Now the research I have done suggests ( see Nasa research on Float tank operations and alpha wave generation) that alpha wave and delta wave...
In similar cases, i mostly prefer current mirror. The circuitry is simpler than diff-amp and provide better noise immunity. I mostly use diff-amp where there...
was sorta hoping i could find someone to help me trouble shoot my miller welder...was working fine...now stopped...i have schematics and exploded views...
Dear All, I have some confusion regarding measurement on color sensing instrument that measure colors of a liquid (Actually it is the one that I have made...
Greetings All: Just wondering if anyone on the list can point me toward a procedure (link, book, steps, other) that can be used to attempt resonance of a 40...
Basic colours R , G , B which is computed as R - G , G - B , B - R is used for Colour Identification . Irrespective of Instruments , with this Principle - we...
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