Recent content by Baluncore

It was 10PM in Australia on 'Talk like a Pirate Day' before I saw the first reference to 'Talk like a Pirate Day'. Would it make any difference if a pirate ship, crossing the dateline at midnight, completely missed 'Talk Like a Pirate Day'.

When high induction pipe flow drags the waste valve up, and closes it, the pump chamber pressure peaks and remains at high ram pressure until the reflection returns. Then the pressure in the pump chamber falls to the head pressure of the induction pipe. At that point, the waste valve sinks into...

If there is backflow through the check valve, then it is minuscule, and irrelevant. When you are filling a bucket from a tap or faucet, and you cut off the water, does backflow occur? Are you insisting that physical backflow, rather than an acoustic depression wave, must take place for the ram...

You need a fabricated commercial board with cross talk problems before you can start testing the concept. You are not ready for that problem.

ChatGPT learns from surveying turds in a sewer. If the track ran across a PCB past many other signals, then you might identify where the crosstalk was coupled from, but for your example of two parallel test tracks it is not possible as the coupling is over the full length of the test tracks.

Signal is remaining in the transmission line resonator. The impedance of the transmission line, is not matched to the load on port 2. First, you are seeing most of the step transmitted to port 2, about 89%. Then, energy reflected from port 2, returns to the step generator at port 1, where it...

As pressure steps up in the pump chamber, the check valve lifts very slightly as water begins to pass into the air chamber. That check valve closes as soon as the pressure begins to fall. There is virtually no back flow through the check valve, which is normally held closed by the compressed...

We know the speed of sound in water, so we know it takes say 8 ms for the pressure wave to propagate up a 12-metre induction pipe, and then another 8 ms for the reflection to return, to cancel the pressure. That gives 16 ms for water to flow through the check valve into the air reservoir, then...

In physics today, light is defined to have a constant velocity. c = 299,792,458 m/s.

https://www.c-light.com/news/details/dac_s_parameters_analysis.html https://blog.teledynelecroy.com/2021/05/converting-single-to-mixed-mode-s.html https://blog.lamsimenterprises.com/2020/07/24/single-ended-to-mixed-mode-conversions/

Get predictions for other locations here. https://www.heavens-above.com/main.aspx

It was a number one hit, by the UK Foreign and Commonwealth Office. https://www.cryptomuseum.com/ref/piccolo/index.htm Once you hear it, you will not forget it. Audio examples: https://www.sigidwiki.com/wiki/Piccolo

Your picture shows a directional coupler. The device is reciprocal so you can flip it upside down or end-to-end to test other configurations. Without a ground plane, the signal will be forward-coupled. Port 1 delivers some coupled energy to port 4, while most direct "through" energy goes to...

It is not. There is a partial reflection at any and every bend in the induction pipe, and again at the open-end of the induction pipe. Optimum valve opening is when there is one clean reflection. Without an inverted reflection, for the waste valve to open it must be spring-loaded to overcome...

I disagree. A ram pump works poorly if it does not have a straight metal induction pipe. The waste valve does not work reliably without the inverted reflection from the open-ended induction pipe. Note that from the instant the waste valve closes, the pressure in the pump chamber is high, like...