Magnetic Encoder Pair Kit for 20D mm Metal Gearmotors, 20 CPR, 2.7-18V - Pololu 3499

Index: PLL-08258 EAN: 5904422375782

A pair of magnetic quadrature sensors, designed for installation in  20D motors from Pololu. It consists of a board with the Hall sensor and the plastic impeller with magnets, a set allows you to receive up to 20 impulses per rotation, it operates with a voltage from 2.7 V to 18 V.

Magnetic Encoder Pair Kit for 20D mm Metal Gearmotors, 20 CPR, 2.7-18V - Pololu 3499
€9.74
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Manufacturer: Pololu

Description

A pair of optical quadrature sensors, designed for installation in 20D mm motors from Pololu. The set consists of two boards with integrated sensors that use the Hall effect and two impellers with magnets. The set allows to obtain a resolution of 12 impulses per revolution, it is powered with the voltage ranging from 2.7 V to 18 V.

Sensors work exclusively withPololu 20D mm motors equipped bilateral, extended shaft.

The operating principle of the encoder

 

Specification

  • Supply voltage: from 2.7 V to 18 V
  • Resolution: 20 impulses per revolution *
  • Dimensions: 20 x 16.5 mm
  • Weight: 1.2 g (one encoder)

 

Included: 

  • 2 x board with Hall sensors
  • 2 x impeller with magnets

 

 The given resolution is the number of impulses per revolution of the engine. To count the impulses per revolution of the output shaft (wheel), multiply the specified number by the selected position. For example, for engine with the 30:1 gearing with the mounted five blades, the resolution will be: 20 * 30 = 600 pulses per revolution of the output shaft with gear.

 

The size of the main board.

Installation and connection

The board with sensors are designed for direct soldering on the power pins at the rear of the engine. The corresponding alignment of the module is the key to receiving the output signal of the high quality. One of the ways of the board installation, is to solder one end, then the align the module and solder the second pin. It is necessary to avoid prolonged heating of the pins of the engine as it may damage the plastic case.

 

The distribution of the pins of the main board.

The mounting holes of the module are simultaneously power pins of the motor, connected to the M1 and M2 pins. OUT1, OUT2 pins are the quadrature outputs. Sensor's power supply must be connected between pins VCC and GND. Pins applied on the board have 2.54 mm pitch what allows you to connect with the connection cables.

When the module is properly soldered, on an extended shaft must be applied the impeller with magnets. The distance between the board and the impeller, doesn't affect the signal quality.

 

Oscillogram of the signal from the encoders.

Same-day shipping

  • Crediting the payment for the order on our account on a business day before 10:00 AM means sending the goods on the same day.
  • All packages are being delivered by GLS Group courier and covered with insurance up to 1200 EUR.
  • You will receive a link to track your package and monitor the progress of delivery as soon as it is shipped.

Terms of delivery 

GLS - zone 1

Austria, Belgium, Croatia, The Czech Republic, Denmark, Germany, Netherlands, Poland, Slovakia 

  • Delivery time: 2-4 days
  • Delivery cost: from 4.18 EUR
  • Insurance: 1200 EUR
GLS - zone 2

Bulgaria, Estonia, France, Hungary, Italy, Latvia, Lithuania, Luxembourg, Portugal, Romania, San Marino, Slovenia

  • Delivery time: 2-5 days
  • Delivery cost: from 5.35 EUR
  • Insurance: 1200 EUR
GLS - zone 3

Finland, Greece, Ireland, Spain, Sweden 

  • Delivery time: 2-7 days
  • Delivery cost: from 7.67 EUR
  • Insurance: 1200 EUR

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