Fluid plan by electrode type fluid plan instead static pressure type fluid plan, or static press and electrode combines means of pilot fluid position control. Two kinds of fluid plan performance is comparative:
Electrode type fluid plan advantage: Low-cost, installation is debugged simple, without power comsumption, because use, is stainless steel material pledges, life is very so long. Defect: Because be long-term below the clear water environment that high concentration polymer of Chu Rong and tall mineralization spend, agglomerate extremely easily on electrode head, the knot dirties, cause control malfunction, cause the trouble that risk coal tub or quits the job dispersedly, and cannot the fluid inside accurate retort, also cannot mirror successive fluid on the terminal personal computer of the duty room.
Fluid of static pressure type plan advantage: Use diaphragm formula static press a test, computer chip data processing, pass an error corrective program, assure to check the linear of data, OK and accurate measure the fluid inside coal tub, and interference rejection capability is very strong, fight concussion, contacting capable person also is stainless steel character, life is longer also, and can with 4 - output of signal of standard of 20 ｍ A is far pass, successive juice displays on terminal personal computer state, also can set implementation open loop, closed-loop control with other automation equipment, with the test medium contact won't affect its test precision, and the technology matures, equipment stability is good, life is long, not easy attaint.