Prism poles are a common tool for land surveying, because they can be used to measure elevation and grade through the use of a sight level. This can include any of the following:
- Automatic levels
- Transit levels
- Laser levels
They’re necessary if you want to get the accuracy you need for today’s data collection methods and technology. They also include alternating bands of red and white, which can be used for distance measuring and for the accurate collection of data. You also have the option of attaching a survey prism making marker that can be used with a total station, but you can also find GPS poles and range poles that are listed in other categories on our site.
If you’re looking for the best place to find quality survey equipment, be sure to look at what we have at Engineering Supply. We’re confident you’ll be able to find what you need.
Frequently Asked Questions
What is a prism pole?
A prism pole can be used to measure the elevation of a specific ground point by using a sight level, which is important if you want to get accurate results. You can find a survey pole in a variety of materials — from metal and fiberglass to a variety of composites. And many of them can be adjusted to a specific height.
What is a ranging pole used for?
Ranging poles (also called “ranging rods”) are used to mark the position of a specific survey station or other object, which can be used to range straight lines. This type of survey pole is used to determine long survey lines (such as boundaries). And here at Engineering Supply, you can find this or any other type of surveying prism pole from many different manufacturers.
How does a survey prism work?
Survey prims can be used with another electronic distance measurement (EDM) device to determine the distance of an object from a specific survey point, and they’re often attached to a prism pole so they can focus on a specific position. Corner cube prisms (also called “retroreflectors”) are often used for this type of measurement, and they will have some type of offset because the beam being transmitted from the device takes longer to leave the prism (especially from longer distances). This can be corrected by using a feature that accounts for this offset in relation to the plumb line of the surveying prism pole.
How do I use a prism pole?
For a surveying prism to be effective, it needs to be attached to a pole so it can stay in a fixed position. It needs to be properly aligned with the instrument to ensure accurate results. And because these tools have been proven over the years, many people don’t see them as the reason for measurements that seem a little off. If you’re pointing to a prism that isn’t perpendicular to the instrument’s line of sight, it can harder to find its exact center. This can result in measurements that aren’t as precise.
What is a mini prism?
Mini prisms will give you the greatest amount of accuracy, but only at close to medium range. They’re smaller in size, which make them more convenient for storage and transport. And they can be attached to any type of survey pole. Be sure to look at the variety of surveying tools that we have at Engineering Supply. We’re confident you’ll be able to find a product that will meet your specific needs.