Prism Poles or what many call range poles are used by construction professionals and surveyors worldwide to accurately measure the elevation of existing ground or grade by using a variety of levels, such as total stations, automatic levels, transit levels, or even construction and laser levels.
What is a Prism Pole?
A prism pole is used to measure the elevation of specific ground points by using sight levels. These are very important as they are necessary for getting the most accurate results.
Varieties of Prism Poles Available
There are a variety of different prism poles made from a variety of different materials. You can find survey prism poles in materials such as aluminum, fiberglass, and carbon fiber. Aluminum is the most affordable of the three materials. The fiberglass prism pole offers greater durability but it comes with the cost of being the heaviest of the three and the most expensive at times. The carbon fiber is the most popular lately largely due to the fact that it is the lightest of the different types of materials and it is just as durable for an affordable price.
Many of the prism poles you see for sale are either fixed or can be adjusted to specific heights making this an important factor when picking a prism pole to purchase. The advantage of having a fixed tip prism pole is that it ensures the prism's vertical measurements are accurate since you can make precise adjustments. Adjustable tips are the most popular because it is the most accurate and if you use multiple prisms it is much easier to manage.
The height of a prism pole is something overlooked a lot by surveyors. The most three common heights for prism poles are 8.5' , 12' , and 15' . There are also mini prism poles, but those are not as popular in the market since they are used for very specific applications.
What Makes Each Prism Pole Different?
In summary; what makes each pole different and what you need to take note of when purchasing a prism pole really comes down to about three different things.
- The Material of the Prism Pole
- Whether The Prism Pole is Fixed Tip or Adjustable Tip
- The Height of the Prism Pole
Here at SiteSurv we offer a complete line of professional-grade surveying Prism Poles for sale that are necessary for accuracy in data collection. We have prism poles from some of the most recognized manufacturers of surveying equipment which include, SitePro, GeoMax, and Sokkia.