- SPECIAL REPORTS
- THE MAGAZINE
2007 Total Station Survey
Total stations continue to be the most important component of the tools used by surveyors today. The demise of the total station that some predicted when GPS (and particularly RTK GPS) was first introduced, has not happened. If anything, total stations have experienced a renewed vitality to make them work more productively with GPS, especially on the data front. The technology of reflectorless measurements, servo-driven target-seeking and target-tracking total stations continues to improve. The addition of Bluetooth technology to data collectors, originally to serve RTK users, continues to be added to more models of total stations so users can enjoy cable-free surveying.
Manufacturers with broad lines of products tend to have robotic, reflectorless instruments at the high end and manual instruments with phase-resolving EDMs that require a retroprism at the low end. Descriptions of most product lines, however, do not stop there. There is added complexity: application software can be “universal” so that it can be used in a number of applications, or it can be customized for particular sub-areas of surveying, such as construction, setting out and quality control. Features such as light guides for setting out, necessity of an external data collector, and the ubiquitous flexibility in angle and distance accuracy, as well as measurement distance range, necessitates understanding the subtle differences even between the same manufacturer’s models. Managers involved in the selection of instrumentation can perform a more thorough needs assessment and have the ability to better tailor the company’s purchasing choice to those needs.
This February, POB is excited to announce that its 2007 Total Station survey is now available in an online searchable, comparable format. As part of our efforts to supply POB readers with superior information, we are extending all of our print surveys to this multi-media format. Our exclusive listing of specifications is the same as previous years, and is limited to information on the six most popular series from each manufacturer. The specifications highlighted will allow you to gain a better understanding of a company’s total station features and abilities. With just a click of the mouse, you have the ability to access information on a variety of total stations and compare them side by side. Manufacturers will continuously update their product information in POB’s surveys to keep you updated on new and enhanced products.
We hope you will use the new online survey to research total stations before making a purchasing decision. To gain a better understanding of a company’s total station features and abilities, click to http://totalstation.jadaproductions.net/ today and begin your search in the 2007 Total Station Survey.
As an addition to our tabulated survey, information on manufacturers’ advanced offerings can be found on the following pages. The information has been provided by the respective manufacturers; more specifications can be found by visiting the websites listed under each entry.
Advanced Total Station TechnologiesFOIF
FOIF introduced a new total station that offers time-saving advantages to surveying and construction professionals. The new OTS6800 Series, featuring a 32-bit CPU, maximizes the speed and precision of distance measurement. Accuracy is +/- (3+3ppm×D) mm with a continuous reflectorless measurement speed of 1.2 seconds. Operating the OTS6800 Series with a single prism, measurements of 5,000 m (16,400 ft) can be made with an accuracy of +/- (2+2ppm×D) mm.
As an EDM utilizing a modulated Class 3R laser, the OTS6800 series offers reflectorless measurement as far as 150 m (492 ft). An ultra-narrow visible laser ensures pinpoint accuracy with narrow objects, walls and corners, and measurement of small incident angles, such as with manholes on road surfaces. Precise measurements are available through fences and tree branches.
Additionally, the new OTS6800 Series adopts absolute encoder and built-in temperature and pressure sensors. The standard SD card enlarges the storage capacity. The new OTS6800 Series can also be easily upgraded by FOIF’s special programs.
Laser Technology Inc. (LTI) manufactures and markets proprietary laser-based measuring instruments and a complete line of mapping accessories. LTI products are renowned for their compact and lightweight design as well as their long-range capability to non-cooperative targets. LTI introduces the new TruPulse 200, a low-cost, pocket-sized laser capable of measuring multiple distances (HD, VD and SD), inclination and height with a built-in routine. Users can save time and avoid unnecessary risks by mapping points with a laser offset from their GPS. Using the range triangulation method with one of our laser products (an affordable option), users can remotely capture the location of any target without ever occupying it. Operators can also eliminate a step by using the Range/Azimuth method with an LPS package that includes a MapStar Compass Module. LTI has developed a complete set of complimentary mapping hardware accessories and software solutions to support a variety of vertical markets, such as natural resource management, forestry, GIS mapping, low-order surveying, mining, gas/electric utilities, communications and industrial process control.
The SmartPole is the latest addition to the Leica System 1200 product family. It saves time in both the office and field. It is no longer necessary to first measure orientation points and only then detail points. Simply begin the survey and conduct the setup while completing the survey. Once the TPS orientation and coordinates are known, all measured points are automatically updated. With the Leica SmartPole, both TPS and GPS are available at all times to ensure every point can be measured. When GPS is restricted by overhead obstructions, use TPS. When no TPS line-of-sight is available, use GPS. Benefit from easy-to-use GPS and continuous productivity with Leica’s SmartPole.
A Smart Investment
The Leica SmartStation, SmartPole and SmartRover are fully compatible with System 1200, sharing the same common user interface, common data management, common functions and features. Also, users who have already invested in a SmartStation or SmartRover can be assured that their investment is secure. The same SmartAntenna can be used together with a TPS1200 as a SmartStation, together with a RX1250 controller as a SmartRover or together with a 360 reflector and RX1250 controller as a SmartPole. Common hardware components reduce costs and increase the flexibility of equipment deployment.
Nikon total stations deliver a versatile, easy-to-use platform. With 10 different instruments, all series offer both prism and prismless options.
The 302 Series total stations have the longest battery life in the industry and are IPX6 waterproof rated. There are six models to pick from, and these total stations are among the fastest in their class. With Lumi-Guide tracking, the Nikon 502 Series instruments allow the rodperson to locate the correct line quickly and easily. The DTM-522 is precise to an accuracy of +/- (2+2 ppm x D) mm; the NPL-522 features an accuracy of +/- (3 +2 ppm x D) mm in precise mode.
Featuring external data storage, the 602 Series allows users to use USB mass storage devices and CompactFlash (CF) cards. Users can download data at the jobsite and carry it back to the office in their pocket to easily transfer the data to a PC. Those interested should see their TDS dealer for Nikon survey products in the United States and Puerto Rico.
Two new series of Pentax total stations will debut this year: the R-300DNX and R-800. The R-300DNX models have a built-in digital image camera and reflectorless, sheet and prism measuring. Angle accuracies are 2, 3 and 5”. Internal data collection is the same as the current R-300NX and EX series.
The R-800 models come in both NX (reflectorless, sheet and prism) and EX (sheet and prism) series. Angle accuracies are 2, 3 and 5” in each series. The R-800s have built-in Windows CE data collection with a 400MHz processor, USB port, CompactFlash port and Secure Digital slot. The color display is 3.7 in diagonal with 640x480 pixels. A 33-key user interface makes input simple and quick.
The R series also have automatic environmental sensing. The environmental correction (PPM) is calculated from data supplied by electronic temperature and pressure sensors. The operator does not need to measure or input this data; rather, the instrument automatically takes care of this. All R series, except the DNX, have image focusing which has been automated with an auto and power focus push button capability. Manual focus can also be used for special situations.
In addition, absolute encoders are used for faster startup, improved vertical angle accuracy and more consistent horizontal reference angle orientation. The narrow visible beam allows users to see the exact measurement point and obtain accurate distances in tighter spots than ever before. A visible laser plummet increases setup speed and the IPX6 waterproofing provides serious weather protection.
Sokkia’s Cutting-Edge Wireless and Cable-Free Robotics
Sokkia’s Fully Tracking SRX featuring Bluetooth Wireless Technology and RED-tech EX<
The SRX is a fully robotic, fully tracking and auto-pointing robotic total station with on-demand target reacquisition. Sokkia’s fully tracking SRX uses the latest robotic technology. Sokkia’s patented RED-tech EX technology offers the highest precision on all ranges of measurements.
This flagship total station has the latest technology on-board to make single-operator measuring quick, easy and accurate. The power and familiarity of a Windows CE operating system is on-board the SRX. Sokkia’s SRX makes single-operator measuring even more convenient with Bluetooth wireless technology for cable-free use.
Multiple data interfaces, including USB and CompactFlash, make data in the field easy to transport back to the office. Saving data is easier than ever before with the options of USB or CompactFlash. Sokkia’s developers didn’t stop there; they also enhanced the encoder with Independent Angle Calibration System (IACS) technology. This groundbreaking new IACS provides extremely reliable angle measurement with unprecedented stability.
With years of keen dedication, South Surveying & Mapping Instrument Co. Ltd. has been ranked among top manufacturers in this field and become a widely recognizable brand name at China’s national level. South Surveying Instrument Inc., the NY-based representative office, is now better known to U.S. distributors and surveyors.
As the flagship of Chinese manufacturers, SOUTH aims to achieve higher goals by continuing its efforts to introduce more new enhanced models. In 2007, SOUTH highlights a new total station in the world market. The Reflectorless Total Station ranges up to 200 m and the Win-CE model is continuously improving.
The NTS-960 Series, based on Win-CE platform, was launched to the global surveying society. The NTS-960 features a touch screen operation, graphic interface display, enhanced absolute encoding system, convenient USB data link and surveying programs customization capabilities.
The upgraded version of the NTS-350R series is another special addition from SOUTH. The upgraded version features a higher EDM speed, longer reflectorless measuring range and a more rugged body.
The Spectra Precision FOCUS 10 series features servomotor-driven, reflectorless total stations that allow users to measure objects with or without a prism. Not only are four-speed servomotors easy to use, they also control horizontal and vertical motion, so there is no need for traditional motion locks.
FOCUS 10 total stations have a range of angle accuracies. The 1.5-inch provides highest precision; the 3-inch is used for high-angular precision; and the 5-inch handles ultimate topographical survey solutions.
These total stations come standard with long-range, reflectorless technology to measure remote objects without a prism using a Class I eye-safe laser. It is possible to reach to greater than 1,970 ft to a 90 percent reflective Kodak Gray Card and 656 ft to an 18 percent reflective Kodak Gray Card. Additionally, each FOCUS 10 model allows measurements to a single prism up to 5,500 m (18,040 ft) with an accuracy of +/- (3 mm +3 ppm). Those interested should see their TDS dealer (United States and Puerto Rico) for Spectra Precision survey products.
Smaller – Lighter – Faster – Longer. The Topcon GPT-9000 series of robotic total station is the latest, most advanced system on the market today that boasts a new modern design, faster motors, 2,000 m reflectorless range, and new X-TRAC prism tracking technology.
The all-new robotic total station series from Topcon offers the ultimate solution for demanding tasks. Designed as a complete field solution instead of a collection of individual components like those found with other systems, the Topcon Robotic System also incorporates the new FC-200 field controller and RC-3 quick-lock system.
The GPT-9000A robotic total station provides precise reflectorless measurement to more than 6,500 ft (1.2 miles). The power to reach such distances means unsurpassed performance at closer range, even to dark objects such as asphalt or small objects like power lines. The on-board Windows computer, with a bright, full-color touch-screen display, on-board software, and faster servo motor technology improve field productivity.
The Trimble S6 Total Station features innovative technologies--MagDrive servo technology, MultiTrack technology and SurePoint accuracy assurance--that provide unequalled advantages to surveyors.
Based on the principles of a magnetic drive, the patented MagDrive servo technology makes the Trimble S6 Total Station fast (115 degrees per second), silent and precise, even when fully transiting 360º horizontally or 180º vertically.
With its MultiTrack technology, the Trimble S6 Total Station locks and tracks to conventional prisms and actively checks the Target ID. With the ability to use eight different targets on a single site, MultiTrack ensures that the Trimble S6 Total Station is always aiming at the correct target.
SurePoint accuracy assurance enables the Trimble S6 Total Station to remain accurately aimed, even if slightly moved. When the instrument is aimed manually at the target, the servo drive goes into hold mode. If the instrument is bumped, SurePoint makes fine adjustments back to the original aimed angle. SurePoint continually corrects for mislevelment and errors such as collimation and trunion axis tilt.