June 20, 2009 ― Phidgets released the 1047 - PhidgetEncoder HighSpeed 4-Input which can read up to four encoders simultaneously with a 1μs time resolution. The PhidgetEncoder Highspeed 4-Input can be used with a wide assortment of mechanical and optical encoders. The encoder should be of quadrature output type, indicating that there will be two quadrature output channels (usually labeled A and B) and a third output channel (only on some encoders) to signal when the index pin (a reference point for zero position or a complete revolution) has been reached. The PhidgetEncoder Highspeed 4-Input is able to read four encoders simultaneously. Encoders are not powered up until all initialization of the device is complete.
It is possible to enable some or all encoders, depending on how many of the channels are being used. This can also be used to reduce power consumption when certain encoders are not needed. The PhidgetEncoder Highspeed 4-Input has the added ability to time the duration between a group of quadrature changes. The time is returned in microseconds. This time value can be used to calculate velocity and acceleration.
Price: $60.
Product Specifications
EncoderMaximum Count Rate: 250,000 counts/secondInternal Output Pull-Up Resistance: 10 Kilo OhmsSoftware Update Rate (typical): 8msUSB Update Rate: 125 samples/secondTime Resolution: 1 μsCurrentMax Device Current Consumption (all channels enabled): 500 mAMin Device Current Consumption (all channels disabled): 30 mAMaximum Current Consumption per Encoder: 200 mAVoltageMin/Max USB Supply Voltage: 4.75 - 5.25 VDCEncoder Input 0 Voltage: < 1.4 VEncoder Input 1 Voltage: > 1.8 V
Pricing and Availability
The 1047 - PhidgetEncoder HighSpeed 4-Input is available now. The suggested resale price is $100.00 Canadian.
