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This section provides an overview for surveying instruments as well as their applications and principles. Also, please take a look at the list of 9 surveying instrument manufacturers and their company rankings. Here are the top-ranked surveying instrument companies as of January, 2025: 1.Sakamoto Electric Manufacturing. Co., Ltd., 2.Geo-Allen Co., Ltd., 3.Exact Metrology, Inc..
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Postdoctoral researcher, conducting research on the production of cathode composite particles for solid-state batteries in the Equipment Engineering Group of Osaka Prefecture University.
Belongs to the Resource and Energy Recycling Laboratory, Nagaoka University of Technology, and conducts research on the development of DDR-type zeolite membranes for CO2 separation and the capture of CO2 from digestion gas generated from sewage treatment plants.
https://researchmap.jp/eiji-hayakawa
Thesis
https://doi.org/10.3390/membranes11080623
http://www.ijcea.org/index.php?m=content&c=index&a=show&catid=109&id=1177
https://www.sciencedirect.com/science/article/abs/pii/S1387181119305529?via%3Dihub
https://www.sciencedirect.com/science/article/abs/pii/S138358661833154X?via%3Dihub
Surveying is the measurement of distance, height, and extent of land or objects, and surveying instruments are devices used to perform surveying.
Historically, surveying has been used since around 3000 BC in Egypt, where it was used for demarcation after the flooding of the Nile River and for the construction of pyramids. In Japan, the creation of the map of Japan by Tadataka Ino is well known.
There are various types of surveying, including reference point surveying, which determines coordinates based on a reference point, and level surveying, which determines the height of a target (sea level). Surveying instruments are also used to create maps, measure the shape and water level of rivers, and measure buildings.
As mentioned in the previous section, there are many different types of surveying instruments, depending on the type of surveying work to be performed. Uses of surveying equipment include mapping, measuring rivers and buildings, and measuring land boundaries.
They are also used to create hazard maps for inundation and other hazards by measuring the height of the sea surface and to monitor crustal deformation, such as earthquakes and volcanic eruptions.
Surveying instruments are used to measure distances, angles (vertical and horizontal angles), and heights (height differences).
A laser-based lightwave rangefinder is used to measure distance, while a theodolite and a scale are used to measure angles (vertical and horizontal angles). The combination of a lightwave rangefinder and theodolite is called a total station, which is widely used in surveying because it can measure oblique distances and angles simultaneously.
A single-element prism target or pin pole prism is used to measure distance, and surveying is done in pairs. There is also a non-prism type that does not use a prism. A laser beam is irradiated onto the object to be measured, and the distance is measured by the reflected laser beam.
Although performance varies depending on the model and object, distances of 500 meters or more can be measured without the use of a prism. Surveying instruments can be used with a prism in the same way as general surveying instruments.
It is characterized by the fact that it can survey even when a prism cannot be installed due to inaccessibility or inaccessibility.
It is also possible to calculate the height difference from the oblique distance and vertical angle, but the instrument height and target height must be taken into account. In addition, the longer the distance measured by a total station, the greater the error.
Another application of surveying instruments is the level, which is used for leveling. There are several types of levels, but generally, auto levels are used. Auto-levels have an automatic correction function and can keep the line-of-sight level as long as it is within the correction range.
Another method is to use the Global Navigation Satellite System (GNSS) to obtain position information. GNSS allows more efficient and quicker surveying over long distances, which is time-consuming and costly with a total station, and in locations that are difficult to survey with conventional surveying.
The use of electronic reference points also eliminates the need for reference point observations required in reference point surveying.
There are two types of surveying: basic surveying and public surveying for which the national government or a public organization bears all or part of the cost and provides assistance.
Public surveying requires notification of the surveyor's license.
However, some types of surveying, such as building surveying, mapping to less than 1/1,000,000, and surveying to less than the specified accuracy, do not fall under the category of public surveying and do not require notification.
Surveying instruments are also regulated. For example, the first-class theodolite must have a double angle difference of 10″ in horizontal angle and an observation difference of 5″ or less. The rangefinder also needs to be 15 mm or less in comparison to the baseline length for a Class 1 rangefinder. The total station combined with these must meet these standards for angle and distance measurements.
As described above, surveying is a highly public activity, and there are detailed regulations, so those who perform surveying must be aware of these regulations and follow the correct procedures.
*Including some distributors, etc.
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Sakamoto Electric Manufacturing Co. Ltd., established in 1951 and headquartered in Fukuoka, United States, is an industrial control equipment and instrument manufacturer and supplier. The company's products include limit switches, joystick controllers, and belt conveyor equipment. Its products extend to include horizontal sensors and digital spirit levels. It also provides precision machining services for custom parts as well as custom assembly services for components used in semiconductor manufacturing equipment, food production-related products, and medical devices.
AndroTec GmbH was established in 2000 in Waldfischbach-Burgalben, Germany, as a manufacturer of laser-based positioning and surveying technologies, as well as software and hardware development. The company offers various products, including Structor STR-60, Metor MTR-55R, Metor MTR-65RGL, Metor MTR-85R/RLL, and Metor MTR-95RG/RF. Offering specialized services, the company excels in crafting custom automation, mobile robotics solutions, and developing bespoke hardware and software. The products stand out by delivering customized solutions for automation, mobile robotics, and rapid line detection. The company serves various industries, including construction, manufacturing, technology, robotics, and logistics.
Chongqing Gold M & E Equipment Co. Ltd. was founded in 1998 and is a manufacturer of high-resolution geophysical equipment based in Jiulongpo, Chongqing, China. The company manufactures geophysical equipment such as underground water detectors, water well drilling rigs, and borehole imaging equipment. These products are used in engineering exploration, seismic monitoring, and groundwater searching. The company has self-managerial import and export authority for product distribution, with products being sold to Australia, Asia, and North America.
Geo-Allen Co., Ltd., established in 2002 and based in Suzhou, Jiangsu Province, Shanghai, is a manufacturer of surveying instruments. The company also offers various products, such as laser instruments, PDA adapters, GNSS devices, and other accessories. The company also holds DNV's ISO-9001 certificate to develop products. The company inspects every product sent from the warehouse to customers. The company also has approved patents for its products. The company also offers accessories such as an adaptor, compensator, battery, and prism pole.
Lokpal Industries, established in 1978 and is based in New Delhi, India is a manufacturer, suppliers of optimum quality Material Handling Equipment. The company product range offered are Hand Pallet Trucks, Hydraulic Stackers and Drum Handling Equipment. The metals and alloys, which are second to none in the market, are used for manufacturing of this construction equipment range. The company import their products from products from China, Taiwan, Korea, Italy, Spain and UK. They export their products to Singapore, Middle East and Europe.
Survey Instrument was established in 1980 and is based in Roorkee, Uttarakhand is a manufacturer of surveying instruments. The company supplies its products to departments such as civil engineering and construction in government, semi-government, and public sectors. The company offers other surveying instruments such as plane tables, bipods, survey accessories, and prismatic compasses. The company also repairs the instruments and calibrates them according to the company's requirements. The engineers will calibrate the levels, transits, lasers, and stations.
Elab Engineering Equipments, founded in 1985 and headquartered in Ambala, India, is a manufacturer and supplier specializing in educational laboratory equipment. The company's main effort is on designing and producing a comprehensive range of scientific instruments, laboratory setups, and training kits, crucial for practical learning in educational institutions. As a key player in the education sector, Elab Engineering Equipments' products cover fields such as physics, chemistry, biology, and engineering. With an assurance to hands-on learning and quality, the company empowers educators and students globally, solidifying its status as a principal provider of advanced laboratory solutions.
Leo Survey Instrument Co., Ltd., established in 2011 and based in Zhengzhou City, China, is a supplier of surveying instrument and accessories. The company caters to surveying accessories to various customers globally. Accessories supplied include Tribrach, prisms, batteries, and GNSS poles. The company has a design team and machinery to make automatic machines and electrical terminals. The product quality inspection of every product is carried out following stringent standards. The company also supplies OEM products for equipment to perform, like new ones.
Exact Metrology, Inc. is based in the United States as a supplier specializing in metrology solutions. The company holds ISO 9001:2015 and AS 9100 Rev D certifications and offers contract measurement and scanning services, along with metrology equipment rentals. While aiming at tailored measuring solutions, it offres a range of products including advanced 3D scanners, laser scanners, CMMs, PCMMs, and CT scanners. The company's expertise extends to white light and blue light scanners, as well as long and short-range scanners. The company's aim to personalized customer relationships allows for precise measuring from intricate small parts to expansive areas.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Sakamoto Electric Manufacturing. Co., Ltd. |
29.2%
|
| 2 | Geo-Allen Co., Ltd. |
14.8%
|
| 3 | Exact Metrology, Inc. |
12.4%
|
| 4 | Survey instrument |
10.5%
|
| 5 | AndroTec GmbH |
8.6%
|
| 6 | Chongqing Gold M& E Equipment Co., Ltd. |
8.1%
|
| 7 | Leo Survey Instrument Co.,Ltd |
6.7%
|
| 8 | Lokpal Industries |
5.7%
|
| 9 | Elab Engineering Equipments |
3.8%
|
Derivation Method
The ranking is calculated based on the click share within the surveying instrument page as of January 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
3 | 42.9% |
|
India
|
2 | 28.6% |
|
Japan
|
1 | 14.3% |
|
Germany
|
1 | 14.3% |
524 products found - Page 12
524 products - Page 12
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I took photos of the reinforcements for construction work by myself. ■Set contents ·rod. ・Tension fittings.
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■Features ・400m with laser class 2 ・Protection grade IP67 ・AC100V~220V ・Pure domestic products ■Standard accessories ・Body ・Power supply dev...
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■Meanings of the two letters of the alphabet ・KA: Clothoid curve starting point. ・KE: Clothoid curve end point. ・BC: Starting point of circular ...
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Made of steel, suitable for measurements that require strong tension.
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