Origin Technologies Corporation

LaserGauge RuggednessFor ruggedness and longevity, the LaserGauge® is superior. It was designed for shop floor use and will survive where others will fail. All of the critical internal parts (optics, electronics) are mounted into a solid Delrin base, unmovable except in extreme shock conditions. This base is then mounted to shock-absorbing mounting points within the external housing to further ruggedize the sensor. Finally, all of this is enclosed in a cast Urethane external housing that is highly impact resistant and tough.

To prove to ourselves that this design would survive expected knocks and bumps during normal use, we subjected a standard HS701 sensor to the ultimate "shock test", with the goal to determine what the limits were to its ruggedness and longevity. This test consisted of dropping the sensor from a fixed height onto a concrete floor, then observing the affects of the impact. We looked for physical damage, dislodged components and affects on the sensor accuracy.

Starting at a height of 3 feet, we found that the sensor easily survived a drop from this height with no damage and no change to measurement performance. As the height was increased to 4', 5', 6', 8', then 10', the only observed effect was a dislodged battery and an occasional bent standoff. We simply re-inserted the battery, straightened the standoff and continued. During these drops, no decrease in sensor performance was noted and measurements on a certified block remained within spec.

At 15' things started to get a little more interesting. Keep in mind that we used the same sensor for all of the tests, so this sensor had already been through the drops from the other heights. Adjacent is a photo of our setup. The sensor was dropped from the position shown. It hit the concrete floor and bounced approximately 2 feet off of the floor before coming to rest 3 to 4 feet from the impact spot.

Here are our observations:

  • Physical Damage – The only immediate effects of the drop were a scuffed sensor housing, bent standoff and a dislodged battery. The scuff was deep enough that it could not be removed. The battery was simply reinserted, and the standoff was manually bent back into its previous shape.
  • Electronic Damage – There was no electronic damage found.
  • Operation Damage – Once the battery was reinserted and the sensor powered back on, measurements were taken to determine if any components had failed or if the sensor calibration was affected. The sensor worked properly and the measurements against a certified block were as good as when the sensor was new.

Finally, a drop test was performed at a height of 20 feet. While the housing still absorbed the impact with little external damage, the shearing force from the impact dislodged some electrical components and the sensor was inoperable but it was repairable.

We are not representing that you will have the same results in your own test, but this is an unofficial, uncertified test that serves to illustrate the ruggedness of the sensor.