Linear Encoder - Incremental Linear Encoders

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• Incremental Encoders
• SHG-TT
• MHG-TT
• SHG-TS
• SHG-VV & SHG-VM
• MHG-VV & MHG-VM
• SHG-VP
• MHG-VP
• SHG-VS
• SPB-TT & SPB-TS
• Encoders for ProtoTrak™
• Absolute Encoders
• Distance Coded Encoders
• SCC-200

• Feature Comparison Chart
• Technology Guide (975k)
• Downloadable Technical
Documents
• Certifications & Ratings
• How They Work

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Encoder Benefits
• IP67 rating

(completely sealed)
• Withstands dust, dirt, oil

and other harsh

environmental conditions
• No mechanical wear

characteristics
• No more broken or

scratched glass scale
• Requires no cleaning or

maintenance
• No air purge required
• Tolerant to shock, vibration

and magnetic interference
• Easy installation, no

machined surface or backer

bar needed

Incremental Linear Encoders

Incremental Linear Encoders
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Newall Incremental encoders provide sine-cosine or quadrature square wave feedback signals that allow for direct integration to servo driven applications. Newall encoders are based upon Spherosyn technology and operate on the principle of electromagnetic induction. Inducing a 10kHz sinusoidal current through a single drive coil within the reader head generates an electromagnetic field. This field interacts with the nickel chrome elements contained in the scale.
A set of four pickup coils detect variations in the induced field that are then combined and processed by the electronic circuitry to generate a signal that varies as the head moves along the scale. Depending on the position of the reader head as it passes over each element, the phase shift of this pickup signal relative to the drive signal will vary between 0 and 360 degrees.

A high-speed digital-signal processor (DSP) converts the analogue signal to an industry standard differential quadrature signal. The DSP also generates the periodic reference marker pulse.

Signal Output	Model	Description

TTL Differential AB Quad - Periodic	SHG-TT	Provides a differential quadrature output at RS422 TTL levels.The periodic reference mark is synchronized with the A & B signals. Accuracy/Meter = ±0.0004" (±10µm). Resolutions = 10µm, 5µm, 2µm, 1µm or 0.5µm.
	MHG-TT	Provides a differential quadrature output at RS422 TTL levels. The periodic reference mark is synchronized with the A & B signals. Accuracy/Meter = ±0.0002" (±5µm). Resolutions = 10µm, 5µm, 2µm, 1µm, 0.5µm or 0.2µm.
	SPB-TT	Designed specifiaclly for Press Brakes. Provides a differential quadrature output at RS422 TTL levels. The periodic reference mark is synchronized with the A & B signals. Accuracy/Meter = ±0.0004" (±10µm). Resolutions = 10µm, 5µm, 2µm, 1µm or 0.5µm.
	MCG-TT	The MCG linear encoder provides an ultra-low profile for restricted spaces. Provides a differential quadrature output at RS422 TTL levels. The periodic reference mark is synchronized with the A & B signals. Accuracy/Meter = ±0.0002" (±5µm). Resolutions = 10µm, 5µm, 2µm, 1µm, 0.5µm or 0.2µm.
TTL Differential AB Quad - No Reference	DSG-TT	For non-servo applications. Provides a differential quadrature output at RS422 TTL levels. No reference marker. Accuracy/Meter = ±0.0004" (±10µm). Resolutions = 10µm or 5µm
TTL Differential AB Quad - No Reference	DMG-TT	For non-servo applications. Provides a differential quadrature output at RS422 TTL levels. No reference marker. Accuracy/Meter = ±0.0002" (±5µm). Resolutions = 10µm, 5µm, 2µm, or 1µm
TTL Differential AB Quad - Single Point	SHG-TS	This encoder has a series of six selectable reference markers spaced every 25.4mm. Accuracy/Meter = ±0.0004" (±10µm). Resolutions = 10µm, 5µm, 2µm, 1µm or 0.5µm.
TTL Differential AB Quad - Single Point	SPB-TS	Designed specifiaclly for Press Brakes. This encoder has a series of six selectable reference markers spaced every 25.4mm. Accuracy/Meter = ±0.0004" (±10µm). Resolutions = 10µm, 5µm, 2µm, 1µm or 0.5µm.
11µApp Sine/Cosine - Periodic	SHG-VM	Accuracy/Meter = ±0.0004" (±10µm). Resolutions (from the SCC-100) = 20µm signal period.
11µApp Sine/Cosine - Periodic	MHG-VM	Accuracy/Meter = ±0.0002" (±5µm). Resolutions (from the SCC-100) = 20µm signal period.
~1vPP Sine/Cosine - Periodic	SHG-VP	Accuracy/Meter = ±0.0004" (±10µm). Resolutions (from the SCC-200) = 20µm signal period.
	SHG-VV	Accuracy/Meter = ±0.0004" (±10µm). Resolutions (from the SCC-100) = 20µm signal period.
	MHG-VP	Accuracy/Meter = ±0.0002" (±5µm). Resolutions (from the SCC-200) = 20µm signal period.
	MHG-VV	Accuracy/Meter = ±0.0002" (±5µm). Resolutions (from the SCC-100) = 20µm signal period.
~1vPP Sine/Cosine - Single Point	SHG-VS	Has a series of eight selectable reference markers spaced every 25.4mm.

Quick and Easy Installation
The design of these linear encoders allow installment in almost any position, unlike glass-scale linear encoders, which usually need to be installed with the lip seal facing downwards to prevent contamination. Self-aligning fixing brackets allow virtually effortless scale mounting, needing only a single hole for each set of brackets.

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Incremental Linear Encoders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Incremental Linear Encoders
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