For users with requirements to measure and display the load accurately at the hook, adopting the use of dynos (load links and shackles) which are suspended beneath the hook becomes the easiest standard. These devices provide significantly more accurate and repeatable load readings in comparison to the integrated proportional load measurement system. The load is transferred directly to them, via minimum rigging, ensuring minimal losses.
For clients that require a permanently installed solution, then a custom designed in hook load measurement device is the answer. By placing the transducer within the hook or close to it, we ensure that the load seen at the hook can be transferred almost directly to the transducer measuring the load. The displayed load is not an electronically amplified value and therefore losses are minimized.
A custom designed transducer involves replacing the hook trunnion with an instrumented strain gauged trunnion or installing a precision load measurement transducer within the hook or between the hook and the rope. The latter being suitable for crane of lighter duty with single rope connections, frequently termed “whip hooks”.
When these devices are connected to multi-linearization electronics, the accuracy and repeatability can be tuned to provide accuracies within the 0.1%, or better, of the cranes operating capacity.
For more information, visit:
http://www.waterweightsinc.com/en/load-measurement.html
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