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Electromate offers a variety of rotary encoders including absolute & incremental rotary encoders. Rotary encoders, also referred to as shaft encoders, are electromechanical devices that convert angular position or motion of a shaft to analog or digital output signals.
Absolute encoders and battery backup incremental encoders provide precise and unambiguous measurements without losing track of their position due to a temporary loss of instrument power.
Rotary encoders typically fall under one of three major mounting styles:
Incremental encoders convert angular motion or position of a shaft into an analog or digital code. The square wave or sinusoid output signal of an incremental encoder provides information about the motion of the shaft, which is typically processed elsewhere into information like position, speed, and distance.
Incremental encoders are among the most commonly used rotary encoders.
There are several advantages of incremental encoders, such as:
Excellent speed and distance feedback
Simple systems
Inexpensive
Absolute Rotary Encoders
An absolute rotary encoder provides speed and position information by outputting a digital word or bit in relation to motion. The output of an absolute encoder indicates the current shaft position, making it an angle transducer.
Absolute rotary encoders offer a few advantages over incremental, such as:
Higher resolution
Better start up performance due to low homing time
Accurate motion detection along multiple axes
Multiple output protocols for better electronics integration
Better recovery from system or power failures
Shafted vs. Hollow Rotary Encoders:
Shafted Rotary Encoders
Shafted rotary encoders mount with a flexible coupling.
Over 1,000,00 varieties of absolute and incremental encoders
Choose from over 20 Communication Interfaces
Incremental Encoders feature any resolution up to 16384ppr
Magnetic and Optical Encoder varieties
Single and Multiturn Absolute Encoders
Fully Programmable Encoders
Encoders for Explosive Environments
Versatile Draw-Wire Displacement Linear Sensors
Precise Single and Dual Axis Tilt Measurement Inclinometers
Magnetic Sensing Technologies Changing How We Use Rotary Encoders
Selection Chart
Quantum Devices'QPhase is a family of high resolution miniature optical encoders for applications requiring high performance, high resolution digital feedback in a very small package.
Features:
Modular and rotary shaft versions
High frequency response
Bearing design simplifies encoder attachment
Resolution up to 5000 lines per revolution direct read
4, 6 or 8 pole commutation
High noise immunity
High operating temperature option (100 C)
Low profile design
Multiple bolt circle mounting
Netzer Precision's rotary electric encoders provide exceptionally accurate, high resolution, absolute position with miniature to wide diameter hollow shaft. Available with Analog Sin/Cos , Digital SSi , Digital AqB+I outputs, these rotary encoders feature up to 20 Bit Resolution (with 12 bit A/D) and accuracy to <0.01° .
Features:
Simple, robust structure with a virtually no- failure- mechanism
Very low weight, inertia, and profile (=<10mm)
Ring shaped, hollow shaft with a wide range of diameters
Absolute position output over 360° rotation range
Precision to 0.001° in selected models
Default operation range from -55°C to +125°C
Dual and triple redundancy options
No magnetic signature
High tolerance to condensation and contaminants
Insensitivity to EMI/RFI and magnetic fields
Low power consumption
Ultra-high-speed options
Wide variety of position feedback protocols
Rotary Encoder Applications:
Rotary encoders are used in a number of applications and industries including:
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