Purchasing encoder friends these encoders technical indicators do you want to know

Need to purchase the encoder friends must understand four rigid index of the encoder: rated power, nominal value, permissible error level and value change rule. Must be accurate positioning of these indicators to correct choose encoder. 1. Rated power. Encoder allow dissipation on two fixed end of one of the most high power as the rated power of the encoder. Should be paid attention to in the use of power rating is not equal to the center tap and fixed on the power. 2. Nominal resistance. Marked on the name of the product value, the series is similar to the series resistance. 3. Permissible error level. The measured value and the nominal value error range according to different precision level allows & plusmn; 20%,± 10%,± 5%,± 2%,± An error of 1%. The accuracy of precision encoders can reach & plusmn; 0. 1%. 4. Value change rule. Refers to the resistance with the sliding piece of contact Angle of rotation ( Or sliding trip) The change of the relationship between the change relations can be any functional form, commonly used have line and logarithm model and inversion of logarithmic type ( Exponential) 。 In use, suitable for linear encoder divider; Inversion of logarithmic type ( Exponential) Encoder is suitable for a volume control in radio, tape recorder, record player, TV. If can't find the similar product, when maintenance can be replaced straight-line, but should not be replaced with logarithmic type. Only suitable for logarithmic type encoder tone control, etc. Shanghai electronic products co. , LTD. , specializing in the production of encoder for 27 years, relying on years of production experience, the encoder model complete, can perfect replacement brand at home and abroad and encoder. Can according to customer need power rating, the nominal value, permissible error grades, resistance change law, and the size to customize the encoder, looking for a coder manufacturer is looking for electronic.