In the humiture sensor the humidity calibration and tries to examine

In the humiture sensor the humidity calibration and tries to examine has two methods, namely or and the known performance’s instrument carries on the comparison using the humidity base, the humidity base may establishes using the thioketone or the hydrochloride potassium solution, or establishes using the saturated salts solution. Control technology regulation, no matter what what situation, must pay attention to the selection the splendid attire spatial gas sample vessel India solution to save the good seal. Does not allow its temperature to have mini receiver the change, moreover achieves balanced must have the enough time. In fact in during the certain circumstances, when which is balanced is very long, however uses the suction pump to pump the spatial gas from vessel item and to cause the spatial gas to pass the solution to have the air bubble, may reduce this kind of balance process obviously.
No matter with any means that some independent survey these base accurate humidity method always good, namely uses this independent method to have the medium accuracy only, when it will also refer shows already achieved is balanced and avoids a more serious error. Or uses this form the humidity base most main limitation to lie in them not to be able to use for to try to examine or to calibrate these sensors not to bring the gross error. Because these sensors will take up water either steam flood the minute (example like dew point meter or psychrometer) or because the introduction gradient of temperature (for example will chlorinate Niu or dew point meter) changes the local environment. Electronic Microphones In order to survey accurately, this method request has the suitable air current flow.
No matter what the calibration the what type sensor’s most reliable method is: Under the actual damp condition, carries on with a known performance good instrument to compared to, 50,190% scopes pass to the humidity often may find in the summer noon and the midnight, but the outside method, the example like continues the flowing in addition in the civil bathroom interconnection the spraying of water, can be suitable for the high temperature scope use, 50% below to the humidity, sometimes may add the hot cell in the center to obtain, may also use the electric heater in the indoor artificial manufacture. Indoor to the humidity in 20℃ often is 60%, rises the temperature to arrive high 32℃, may reduce 3096 to the humidity. Serves as the humidity base accurate best instrument is the psychrometer and the dew point meter, the dew point meter has calibrated accurately the thermometer, with and so on Micro Microphones is accurate with the spatial gas temperature’s survey, will therefore give the reliable humidity number value, when will do not hesitate the high price, Asi will pass the wind psychrometer is the ideal instrument gracefully, but to in the majority item of rotary system type psychrometer is also the enough accurate instrument, will have many people to approve that will use the Jan Dan rotary system type psychrometer to take a base this sign accurate humidity instrument, to will illuminate Piezo Buzzer it to try to examine and to calibrate other more special instrument.