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2017
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Invention
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Solar battery wireless load cell.
A load cell for transmitting load data of a polished rod in a ... |
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2016
|
Invention
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Solar battery wireless inclinometer.
An inclinometer that provides inclination data of a walking... |
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|
Invention
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Solar battery wireless load cell adapter. An adapter(200) for a load cell(150) in a rod pump syst... |
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2015
|
Invention
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Solar battery wireless integrated load cell and inclinometer. An integrated load cell and inclino... |
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|
Invention
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Solar battery wireless load cell. A load cell for transmitting load data of a polished rod in a r... |
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2010
|
Invention
|
Intelligent online system for adjusting balance of closed-loop pumping unit. An intelligent onlin... |
