This equipment, mounted at the end of a cylinder, provides extremely accurate and reliable information on the position of the cylinder’s rod.<\/p>\n
Operating principle: A link fixed in the axis of the cylinder piston provides sensing as it moves.<\/p>\n
This flexible link rotates the grooved drum and the cross shaft to which it is flanged. Its tension, which is practically constant, is controlled by a spiral spring, known as the power spring.<\/p>\n
Thanks to its double articulation, the flexible link remains parallel to the longitudinal axis of the cylinder.<\/p>\n
Finally, the transverse shaft rotates the absolute encoder via a coupling.<\/p>\n
The programmable absolute encoder signal is processed by an electronic control system.<\/p>\n<\/div><\/div><\/div>
![](\"https:\/\/www.doucehydro.com\/wp-content\/uploads\/2024\/05\/capteurs-absotek1.jpg\" "\\"capteurs-absotek1\\"")
<\/span><\/div><\/div><\/div><\/div><\/div>![](\"https:\/\/www.doucehydro.com\/wp-content\/uploads\/2024\/05\/5435435354315.png\" "\\"5435435354315\\"")
<\/span><\/div>![](\"https:\/\/www.doucehydro.com\/wp-content\/uploads\/2024\/05\/534654353.png\" "\\"534654353\\"")
<\/span><\/div><\/div><\/div>MEASURE TO CONTROL<\/h2><\/div>The power of hydraulics is now matched by the precision of measurement.<\/p>\n
The position indicators are the only ones to:<\/p>\n
\n- Ensure perfect synchronization between two or more cylinders of different cross-sections<\/li>\n
- Adaptable to all types of cylinder Guard<\/li>\n
- Deliver a Gray code signal recognized by all ECUs<\/li>\n
- Programmable to an accuracy of 1\/10 mm<\/li>\n
- Covering strokes up to 15 m<\/li>\n<\/ul>\n
T + R ELECTRONIC ABSOLUTE ROTARY ENCODER<\/strong><\/p>\nPrinciple: The measuring principle of absolute rotary encoders is based on the optical reading of a plastic or glass disc, which rotates with the axis.<\/p>\n
An unambiguous code, Code Gray, is engraved on several concentric tracks, the number of which depends on the resolution required.<\/p>\n
Each track is assigned an optoelectronic barrier, so each angular position generates a unique combination that corresponds to the angular position of the drive shaft.<\/p>\n
In principle, the code engraved on the disk can be compared to a non-volatile memory. This enables the absolute value of the shaft position to be obtained instantaneously on power-up, thus avoiding the need for a reference.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
FIELD OF APPLICATION:<\/strong><\/p>\nWith two types of sensor, we cover all cylinder strokes from 0 to 15m in length, operated at pressures from 0 to 350 bar.<\/p>\n
The position sensor can be fitted either:<\/p>\n
\n- Workshop work on new equipment<\/li>\n
- On-site for older equipment requiring refurbishment<\/li>\n<\/ul>\n
These sensors are a welcome replacement for the old external indicators, which drive screw-and-nut rotary position selectors whose mechanical fingers tilt the electrical contacts.<\/p>\n
Connections between moving parts and control panels become purely electrical and can reach over 1000m.<\/p>\n
THE VARIOUS MECHANICAL ADAPTATIONS<\/strong><\/p>\nTwo models are currently available:<\/p>\n
\n- A type 82 sensor for cylinders with strokes from 0 to 8.5 m.<\/li>\n
- A type 15 sensor for cylinders with strokes from 0 to 15 m.<\/li>\n<\/ul>\n
For these two types of sensor, there are two possible configurations.<\/p>\n
An intermediate element between the cylinder body and the position sensor is always an option for mounting on older, in-service equipment.<\/p>\n<\/div><\/div><\/div>
The power of hydraulics is now matched by the precision of measurement.<\/p>\n
The position indicators are the only ones to:<\/p>\n
- \n
- Ensure perfect synchronization between two or more cylinders of different cross-sections<\/li>\n
- Adaptable to all types of cylinder Guard<\/li>\n
- Deliver a Gray code signal recognized by all ECUs<\/li>\n
- Programmable to an accuracy of 1\/10 mm<\/li>\n
- Covering strokes up to 15 m<\/li>\n<\/ul>\n
T + R ELECTRONIC ABSOLUTE ROTARY ENCODER<\/strong><\/p>\n
Principle: The measuring principle of absolute rotary encoders is based on the optical reading of a plastic or glass disc, which rotates with the axis.<\/p>\n
An unambiguous code, Code Gray, is engraved on several concentric tracks, the number of which depends on the resolution required.<\/p>\n
Each track is assigned an optoelectronic barrier, so each angular position generates a unique combination that corresponds to the angular position of the drive shaft.<\/p>\n
In principle, the code engraved on the disk can be compared to a non-volatile memory. This enables the absolute value of the shaft position to be obtained instantaneously on power-up, thus avoiding the need for a reference.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
FIELD OF APPLICATION:<\/strong><\/p>\n
With two types of sensor, we cover all cylinder strokes from 0 to 15m in length, operated at pressures from 0 to 350 bar.<\/p>\n
The position sensor can be fitted either:<\/p>\n
- \n
- Workshop work on new equipment<\/li>\n
- On-site for older equipment requiring refurbishment<\/li>\n<\/ul>\n
These sensors are a welcome replacement for the old external indicators, which drive screw-and-nut rotary position selectors whose mechanical fingers tilt the electrical contacts.<\/p>\n
Connections between moving parts and control panels become purely electrical and can reach over 1000m.<\/p>\n
THE VARIOUS MECHANICAL ADAPTATIONS<\/strong><\/p>\n
Two models are currently available:<\/p>\n
- \n
- A type 82 sensor for cylinders with strokes from 0 to 8.5 m.<\/li>\n
- A type 15 sensor for cylinders with strokes from 0 to 15 m.<\/li>\n<\/ul>\n
For these two types of sensor, there are two possible configurations.<\/p>\n
An intermediate element between the cylinder body and the position sensor is always an option for mounting on older, in-service equipment.<\/p>\n<\/div><\/div><\/div>
![](\"https:\/\/www.doucehydro.com\/wp-content\/uploads\/2024\/06\/20160216_131316-800x450.jpg\")
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