6. The following is the technical specifications for group of total stations. Di
ID: 1732465 • Letter: 6
Question
6. The following is the technical specifications for group of total stations. Discuss the different elements of the specifications. Arrange the elements of specifications according to their importance and mention your reasons. Chose the best one for your construction site and give your justifications CX series cx 101ek-10Bcx-10a ek tosex-107 CK-101CX-102CX-103/CK-105/CX-107 SPECIFICATIONS Total Stations Model CX-105 CK-107 Others Length: 171mm (6?n.), Objective aperture: 45mm (1?n3448mm?1.Sin) for EDM), Image: Erect, Field of view:1 30 (26m/1,000m),Minimum focus:1.3m (4.3n-), Reticle illumination:5 evels Display resolution 0.51 0.0050, r 0.02m Provided king range: Relectorkss mode: Cass 3R/Prism/ sheet mode RS9ON-K: 1.3 to 500m (4.3 to L,640tt. CPO1:1.3 to 2,500m (8,200ft.). ORIPA: 1.3 to 500m (1,640 to 5,000m (16,4oon.&Under; Measuring range under average conditions*) Reflective Reflectorless One AP prism Three AP to 4,000m (4.3 to 13,120ft.Under conditions:5,000m (16,400ft. condtions:to 6,000m (19,680m Tracking: 0.01m0.1ft Accuracy 50 17123-4:2001) Reflectorless m x D) mm Fine: 0.9s (initial 1.7s), Rapid: 0.7s (initial 1.46), Tracking: 0.3s (initial 1.4s Display/Keyteard Graphic keys wih backlight On one face location t instrument Data storage pprox. 10,000 points Serial RS-2 Bluetooth Cass 1, Ver 2.1+EDR for USB flash Bluetooth modem range: up to 300mExplanation / Answer
1. magnification power of 30x means the object will be 30 times nearer than naked eye. and 2.5" and 3.5" are the size of the object lens (front lens). for the same resolving power bigger the object lens better the telescope (more light will enter). CX - 107 wins in this situation.
2. others - same for all models.
3. display resolution - least angle it can save. (lower the better)
4. accuracy - minimum anle it can measure. lower the better (cx 101 can measure 1 arc second angle, so it is the best, for precise and important work)
5. all models have angle calibration system. (using gyroscope and accelerometer)
6. collimation compensation - if the instrument is placed on uneven ground and not calibrated properly. (axis of the instrument are not "perfectly" in horizontal and vertical direction)
7. Can work in both reflectorless and prizm/reflective sheet mode.
(all models have the same accuracy in both mode)
class 1 accuracy in prizm/reflective sheet mode.
(reflectless mode - Allow you to measure to objects or points without using a prism
- Allows for difficult or impossible to reach places
- No additional person needed on some measurements
reflection mode-
prizm mode - tradional but more accurate. light get reflected by a prizm
reflective sheet- inexpensive alternate of prizm using a mirror for reflection)
Distance accuracy measurement - like in reflectorless mode - (3+ 2ppm x D) means 3mm + 2 parts per million of distance
8. data management - terms have usual meaning. internal memory can save 10000 coordinates)
bluetooth 2.1 with edr = bluetooth Version 2.1+EDR ( Enhanced Data Rate ) today smartphone like iphone X have bluetooth 5.0.
9. terms have usual meaning (if you have any quastion just ask )
cx 105 is the best choice for construction site with good accuracy and a price of less than $5000 usd.
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