AJ10-B3 Topcon Type Tribrach without Optical Plummet for Survey
Instrument
Model: AJ10-B3
Specifications
| Model | AJ10-B3 |
| Color | Black |
| Optical Plummet | No |
| Weight | 670g |
| Material | Aluminum |
| Package | Individual Box Package |
| Accuracy | Torsional stiffness <2" |
| Type | Survey Instrument Accessory |
| Bubble | 8' Circular Bubble |
| Used For | All motorized instruments |
Features:
* Topcon style tribrach with optical plummet for Tripod Total
Station Theodolite Auto Level etc.
* Tribrach with 5/8”thread at bottom is an attachment plate used to
attach a surveying instrument
* Easy to carry and use. High quality and accuracy products
8-minute circular vial
* Footscrews have a large diameter for fine adjustment even when
wearing gloves
* Three screw-leveling with center line
Leosurvey Tribrach
Similarly to the stability of the tripod, that of the tribrach is a
significant factor in measurement accuracy. The torsional rigidity,
the most important criterion of a tribrach, is constantly
controlled and tested during its production. The maintenance-free
foot screws of the Leosurvey tribrach provide movement that is
always smooth and free of play, even after years of use. The
precise alignment of the support area to the base plate of the
instrument assures extremely accurate forced centring. The optical
plummet is so robust that the need for adjustment during the entire
lifetime of the tribrach is practically unnecessary. Its
construction predestines the tribrach for all applications,
including extreme temperatures and high dust and humidity.
What is the accuracy of a tribrach?
The accuracy with which a tribrach returns to its starting position
once the instrument has stopped, is called torsional rigidity or
hysteresis. This hysteresis is the relative movement between the
top plate and the base plate of a tribrach that occurs through the
rotation of a TPS instrument.
Why does a tribrach need to be adjusted?
The precise alignment of the support area to the base plate of the
instrument assures extremely accurate forced centring. The optical
plummet is so robust that the need for adjustment during the entire
lifetime of the tribrach is practically unnecessary.
How big are the foot Screw on a tribrach?
The hysteresis of the Professional 3000 Series tribrachs amounts to
a maximum of 3" (1.0 mgon). The foot screws are maintenance-free
and have a larger diameter.
Can a tribrach be used with a total station?
You can use a laser tribrach with any type of laser measuring tool,
but you can also use it with a total station or any other surveying
instrument. This device will allow you to attach your instrument to
a tripod, so it can be more stable while you’re using it.
