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Improved Encoder Accuracy Brings Hidden Advantages

Improved Encoder Accuracy Brings Hidden Advantages

Capacitive rotary encoders akin to these from Netzer Precision are identified for his or her low profile, excessive noise immunity and glorious accuracy. Consequently, they’re a wonderful alternative for functions akin to digital camera techniques, radar, slip-rings and robotic joints. Usually instances in these duties the encoder is used for velocity suggestions, guaranteeing a clean and regular rotation of an axis. Success not solely requires excessive decision and accuracy, but in addition low latency.

To handle the wants of those functions Netzer has launched an Prolonged Accuracy (EA) choice to the DS, VLP and VLX sequence merchandise. Whereas the EA choice does enhance static accuracy, it additionally considerably reduces the quantity of noise/error within the place sign. Consequently, when velocity is derived from the place data, a a lot smoother velocity curve seems. For instance, take into account the 2 place accuracy plots under for the standard and EA sequence encoder.

The high-frequency noise within the prime plot (normal encoder) is because of a 4th-order noise frequency that happens on the ‘superb’ cycle of the encoder. On this instance the encoder has 32 superb cycles and thus there are 32*4 of this high-frequency noise over one rotation. Within the decrease picture the 4th-order noise has been considerably diminished within the EA encoder. This ends in a a lot smoother place error curve. When contemplating that velocity is the spinoff (i.e. the slope) of place, it rapidly turns into evident that the EA encoder can have a a lot improved velocity output.

One other vital characteristic of the EA encoder is that the development above happens not via extra filtering, which might introduce the damaging consequence of elevated latency. Somewhat the EA encoder undergoes a further manufacturing step the place a singular Look Up Desk is generated for the precise encoder. One other profit is that an EA encoder can be utilized instead of an present Netzer encoder with no modifications within the communication protocol, making upgrading present management techniques so simple as potential.

To seek out the correct Netzer encoder in your software check out our product finder or higher but give us a name, 856 727 9500. We’d like to study extra about your software and the way we will help.

Prepared to seek out the correct sensor in your software? Everight will help.

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