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Using the GP1 to identify what happens during shipping

The GP1 is an ideal instrument for monitoring the handling of assemblies during shipment. Manufacturers are realizing that incidents of undesirable handling are a major cause for shortened service life, product damage, and poor customer experiences. The GP1 is a 3-axis instrument that can record 35 days of: acceleration profiles, response periods, vibrations, and reactions to inputs. The GP1 captures, quantifies, and helps the user understand those elements that are not readily observable. Recording and understanding how an assembly is handled is an essential element for identifying possible internal damage.

The GP1 makes it easy to discover and record dynamic handling information and features an internal processor that can be set up to record summary and/or detail type information

The summary information mode is easy-to-understand and gives the user pertinent information without unnecessary detail. This mode automatically calculates and reports: when the motion occurred, what type of motion it was, what the thresholds were and how long the motion lasted. The summary mode has pre-programmed reports that identify drops, tilts, impacts, heavy landings and velocity changes. The following example shows the velocity change (in meters per second) that a shipment was exposed to during a multi-mode transit activity.

The GP1's summary mode can calculate and report up to 21 different measurements, The GP1's summary mode can calculate and report up to 21 different measurements, these measurements take the guesswork out of trying to understand what occurred.

One unique measurement provided in summary mode is a freefall recorder. The freefall recorder identifies when and how long an object is in freefall, the settings for this recorder are easily customizable and they can be tailored for different package sizes and configurations.

In addition to the calculated values that are generated by the summary mode, the GP1 also records acceleration waveforms; acceleration waveforms are a compilation of individual acceleration samples taken every 10 milliseconds and then stitched together to describe the characteristics of the motion. The waveform files show the details and nuances of the motion and displays exactly what occurred, the ability to visualize dynamic signatures helps the user see complex relationships. The example below illustrates waveforms that were recorded during a drop onto a foam surface notice how the two traces converge around the zero g line (freefall) and then rolls and rebounds against the foam as the signals decay.

The software that comes with the GP1 has an export to csv function that lets the user export the summary and detail data out to other analysis packages.

The GP1 offers an easy way to capture and understand the dynamic inputs that shipments go through. Monitoring and controlling those influences can have a significant impact on customer satisfaction, quality, and rework.

If you would like more information about the GP1 or help in evaluating your application please give us a call; our technical staff is made up of engineers and technicians dedicated to providing you with accurate, relevant information.