China Linear Scale Encoder manufacturer
Zhuhai Easson Measurement Technology Ltd.
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3 Axis Dro Kit Grinder Absolute Linear Encoders Digital Readout

3 Axis Dro Kit Grinder Absolute Linear Encoders Digital Readout

Brand Name Easson
Model Number VA11
Certification CE
Place of Origin P.R.China
Minimum Order Quantity 1PCS
Payment Terms T/T
Supply Ability 3000 PCS per Month
Delivery Time 3 working days
Packaging Details Carton
NAME Absolute Scale
KEYWORD Cnc Linear Encoder
Meas. standard 20 μm
Meas. length 50-1250 mm
Display Resolution 1 µm
Structure Vertical 5 bearings & 6 Springs
Power Supply DC 5V
Output Signal TTL
Detailed Product Description

High Accuracy 6 Springs Absolute Linear Scale Digital Readout For Griding Machine

 

Product Description


Advanced Optical Measuring System

 

 

Principal of Absolute Linear Scale

The grating scale of absolute linear scale consists of two grating masks, they are Absolute Grating Mask and Incremental Grating Mask respectively. Functions of this two masks are as per follows :

 

Absolute Grating Mask have different mask pattern over the whole grating glass, it gives low resolution but unique position readings over the whole measurement travel.

Incremental Grating Mask is an identical repeatable mask patterns over the whole grating glass, it gives very stable and high quality electronic signal for signal interpolation to achieve very high accuracy and resolution position readings.

 

Absolute Coding

All absolute coding used in our Absolute Grating Mask are designed by Easson, it is 100% our in-house design and intellectual property, designed and developed for different requirements of applications.

 

EC-1 is an absolute code designed by Easson for absolute grating scale. Compared with Heidenhain's 20mm distance code, epson EC-1 has the following advantages:

 

1. Heidenhain's distance code is a kind of "Codified Mark" that uses a small mark within 20mm as a distance signal trigger, while EC-1 uses a normal 0.82mm width REF Mark as a position mark, so the dust resistance is better than Heidenhain's is better and has less chance of misreading.

2. EC-1 adopts a dual-code combination design, with the possibility of error detection, so it is easy to embed error detection and correction procedures.

3. The detection movement distance of EC-1 is 6.1~12.1mm, which is shorter than Heidenhain's "Codified Mark" and is more convenient to use.

 

Product Specification


 
 VA10VA11VA12VA13VA20VA21VA22VA23
Measuring StandardGlass Scale - Grating period:  20μm (0.02mm)
Optical Detecting SystemTransmissive Infrared System: wave length 880mm
Slide Carrier SystemVertical five bearings supporting system
Resolution5μm1μm5μm1μm5μm1μm5μm1μm
Measurement Travel50-1200mmEvery 50mm per length SpecificationNot available
1300-3000mmNot availableEvery 100mm per length Specification
Accuracy50-450mm±3μm - ±5μm--
500-800mm±10μm±5μm±10μm±5μm--
1050-2000mm±10μm±5μm±10μm±5μm--
1300-3000mm--±10μm/m
Repeatability2μm (0.002mm)
Hystersis3μm (0.003mm)
ProtectionIP 53
Power supplyDC 5V ± 5%
Output SignalTTLTTL422422TTLTTL422422

 

Installation Dimensions


 

VA10 / VA11 / VA12 / VA13 Series

 

Connector interface


 

Gold-plated pins to avoid poor connection and Anti-corrosion, it has  the small PCB inside the connector which allow the VA series Absolute Linear Scale built in the Laser compensation data and directly connect to our LCD DRO, ensure the high measuring accuracy.

 

 

DSUB 9PIN

PINTTL422A
SignalCableSignalCable
1————A-Yellow
20VOrange0VWhite
3————B-Red
4GNDGNDGNDGND
5————R-Black
6AYellowAGreen
75VRed5VBrown
8BGreenBBlue
9RBrownRGrey

 

 

100% Laser calibration

All glass grating transducers are individually inspected and calibrated by our in-house laser interferometer to ensure measuring accuracy comply 100% with the specifications.

 

Product Tags: Absolute Linear Encoders Digital Readout   grinder Absolute Linear Encoders   Easson VA11 Linear Digital Encoder  
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