Hi, is anyone know how i can send 24vdc for 10millis and then read 300-3000hz from the same 2 wires ?
Cut to the chase. Obviously, you're interfacing to something. How about a link to a product, or a datasheet?
I don't have datasheet but i can send a item, its a wire gauge https://www.scibim.com/products/surface-vibration-wire-gauge
i only know that i should send 24vdc and get 300-3000hz
Interesting product, but nowhere near enough info to suggest a path forward. If you can point to existing schematics, interface products, etc. there might be some hope. Otherwise, maybe others here have more experience with the product.
I found a few documents on russian about how it works
that image shows how the sensor look like inside, i need to send 24vdc on these two green boxes(electromagnetic coils) for 10 millis its gonna make string shake and then with the same two wires im gonna get a signal in hz from this string
and also i found a datasheet from rst
ELM0086C-Vibrating-Wire-Arcweldable-Strain-Gauge-VWSG-A-Manual.pdf (1.1 MB)
Interesting. Sorry, out of my league. Good luck!
Sure! Use a blocking capacitor to separate the DC from the AC. Done for 100 years with the land-line telephone system.
Sound nice, but why i should separate them?
So you can do something with the "signal" on the wire. Isn't that reason for you thread on the forum?
So the signal i should read after is a AC?
Your words on the initial post on your thread!
I need to connect wires from power supply and from reader to wires on sensor , and put blocking capacitor on reader wires to block dc power, right?
What is your "reader"? Powering wires from power supply to the sensor. Negative of power supply also to ground of your system. Then a capacitor between the + of the power wire to whatever the reader is. That will allow the AC tone signal to pass to the reader and BLOCK any DC getting to the reader input.
Time for you to show us a block diagram of all your devices and how you are connecting them.
Sort of correct. You still have not identified the reader. Remember, you are dealing with AC voltages with a varying frequency.
Replace your "reader" with an audio amplifier/speaker and see if you can hear the tone being generated.
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