My goal is to have a dual plane grid of IR conductors spaced 1mm apart, that you can essentially see through. I want to scan both glass edges (x glass and y glass) and calculate via signal processing the cartesian coordinates of an infrared beam striking the glass. I don't have aproblem with the...
Is anyone familiar with how to produce virtually transparent laticework of infrared conducting material on a 14" by 14" glass sheet for example? Are there clear infrared epoxies available?
I was using a transformer based -5 supply to the LT1264 Bandpass filter without a problem until I tried using Microchip TC962 negative charge pump for the same negative supply instead of the transformer. The TC962 has 80ma output LT1264=23ma, max. Any conceptual blunders in trying this approach?
Current source to transducer is only 0.4a. Transducer can't draw more than what's available. Sounds like I am making an ultrasonic weapon more than a transmitter by your concern. I will ponder your concerns. Thanks for both replies.
GoKid!
Hi folks,
I want to send 150v 0.4amp to a remote ultrasonic transducer that has 200 ohm impedance. The NPN driving ciruitry will be about 3-4' from the transducer housing. Digital circuitry will be nearby. What specific brand name/type cable would one recommend - it may bump or rub up against...
Ok, thats a start, thanks. Do I also need any line drivers/amps to reduce signal attentuation to the receiver circuitry from the receiver transducer? Even without a line in between the signal is in the millivolt to microvolt region.
GoKid!
Hi folks,
I want to drive ultrasonic transducers at 40KHz 3-4 feet away from the transducer drive circuitry itself- is this possible with twisted pair wires? Like-wise I would like to seperate the transducer receivers from their reciver circuitry by about 3 feet and keep the several receiver...
I am driving a transducer with a 200ohm load resistor connected to the push-pull output. Are you suggesting that getting a converter with a higher output amperage may solve the problem? That would make sense as other lower voltage higher amp sources have worked while this one doesn't.
I corrected my drawing per Zeitghosts comment, it wasn't actually connected that way. Benta I will look into those dedicated drivers to strengthen my design.
Replacing the P channel 9630 with an IRF9640 and the circuit above began working (bad FET?). I used a 9v battery test source for the...
