Can the rotation speed of the stirrer in a reaction vessel be calculated using current?
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It is necessary to monitor the rotation speed of the stirrer in the reaction vessel, but currently only a current signal is available. Can the rotation speed be determined from this current signal? If that’s not possible, is it possible to use an external speed detector or something similar? It would be great if there were links to relevant information; I’m learning about this, thanks!
It probably won’t work; the current when the machine is empty is different, and it’s different again when there is material inside
There is an infrared speed detector that you can try; you can attach a reflective sticker to the shaft in the visible part to conduct the measurement.
It is possible, but a current transmitter is required to convert the current signal into a 4-20mA signal or a communication signal. For accuracy, calibration can be carried out by selecting scenarios such as no load, 20% material load, 40% material load, 60% material load, 80% material load, and 100% material load; this will result in the corresponding curves. The option for the 5th floor is the simplest and most straightforward, with lower costs as well. It is recommended to use the method from floor 5 – one tachometer will suffice.
1. No. 2. Install a proximity switch facing the mixing shaft, and that’s it