under pressure meters
Every year you should make at 2 cylinder engines synchronizing the carburetors or throttle or control. Every time go to the workshop? The ambitious screwdriver makes itself. But how?
The best-known system, two dial gauges. But this has the disadvantage that the same are purely mechanical and inequality is given. Here is aided by the exchange by cross control. Is always kind and the dial also cost a lot of money.
So please a little cheaper. A water level gauge is also a possibility. If the hose is long enough and is filled with a not too thin liquid, it can also lead to hereby synchronization. Here, there are still more BUT.
If due to an error in the vacuum system a much stronger side, it quickly pulls the liquid toward purely motor. Not exactly what you wish for. In addition, the hose must not be too thin so that it does not contract at applied negative pressure. And the hose length does play a role here. So this is not exactly optimal. But very inexpensive.
Since I like both versions not so good, and digital meters used in professional motorcycle repair shops to use (at least in the known to me), so I made myself out my thoughts about it. Subsequently, the result of the deliberations.
Basically, electronic sensors rely on any mechanical components and are therefore subject to no scattering such as a dial gauge. Furthermore, a purely digital processing of the measured values can not be disturbed. And finally, you can build beautiful small electronics.
It is added as a further contributing factor , the system is constructed dual. If the error increases due to the influence of temperature or other external influences in a sensor , he does it in the very same extent, in the other sensor . The two sensors are an assembled unit. Since the display controls a sensor in the evaluation, the display and the other to negative to positive, here the error is largely compensated by itself
currently only a novelty. PCB layout is done and the first prototypes of the boards are ordered.