Measuring Head
AssemblySurface sheave assembly that measures cable depth and tension. The cable runs over a calibrated sheave wheel feeding a depth encoder, and a load cell reads line tension. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Measuring Head
8 top-level lines as of r191345| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Measuring Sheave | wireline-logging-unit-measure-sheave | 1× | 1 | · | part |
| 2 | Upper Sheave | wireline-logging-unit-upper-sheave | 1× | 1 | · | part |
| 3 | Depth Encoder 4 parts | wireline-logging-unit-depth-encoder | 1× | 1 | 0 | assembly |
| 4 | Tension Load Cell | wireline-logging-unit-load-cell | 1× | 1 | · | part |
| 5 | Measuring Head Frame | wireline-logging-unit-head-frame | 1× | 1 | · | part |
| 6 | Ball Bearing | ball-bearing | 4× | 4 | · | part |
| 7 | Coil Spring | coil-spring | 2× | 2 | · | part |
| 8 | Connector | connector | 2× | 2 | · | part |