Hi all,
I'm not looking to design a circuit so much as find a device to discover a signal.
The application is a laser looking at a rapidly spinning object (about 60,000 rpm), and detecting that it is in fact spinning. Measuring the rate is NOT important to me... however I am getting about a 1kHz signal from the sensor so that's all fine and dandy.
I need to detect simply this: am I getting a signal or not? (is it spinning or not)
I would use a simple ratemeter, but they require signal levels the laser sensor does not achieve.
The signal is about 0.3v, 1kHz, offset by +1 volts (so it's swinging between 1.0 v and 1.3v).
The only options I can think of is to process this signal so that it is amplified to about a 5v signal, having shifted the offset down so that it more resembles a logic signal (0 to 5v swing)... then feed it into a common ratemeter, OR find a device that can detect the 0.3v signal and illuminate an LED or something to say that the signal is detected.
Again, not looking to make a circuit... but looking for a device that can do either of these jobs.
Sorry for the weak electronics... it's not my field, trying my best.
Thanks!
R
I'm not looking to design a circuit so much as find a device to discover a signal.
The application is a laser looking at a rapidly spinning object (about 60,000 rpm), and detecting that it is in fact spinning. Measuring the rate is NOT important to me... however I am getting about a 1kHz signal from the sensor so that's all fine and dandy.
I need to detect simply this: am I getting a signal or not? (is it spinning or not)
I would use a simple ratemeter, but they require signal levels the laser sensor does not achieve.
The signal is about 0.3v, 1kHz, offset by +1 volts (so it's swinging between 1.0 v and 1.3v).
The only options I can think of is to process this signal so that it is amplified to about a 5v signal, having shifted the offset down so that it more resembles a logic signal (0 to 5v swing)... then feed it into a common ratemeter, OR find a device that can detect the 0.3v signal and illuminate an LED or something to say that the signal is detected.
Again, not looking to make a circuit... but looking for a device that can do either of these jobs.
Sorry for the weak electronics... it's not my field, trying my best.
Thanks!
R