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National Land Surveying and Mapping Center. Republic of China(Taiwan)National Land Surveying and Mapping Center. Republic of China(Taiwan)

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Surveying Instruments

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Surveying Instruments

The surveying procedures consist of triangulation, trilateration survey, and precise traverse survey (satellite positioning survey) , mapping control survey, parcel survey, area calculating and mapping. Most of the early surveying tools are mainly precision mechanical structure , such as theodolite (for angle surveying) and hand calculator, while bamboo tape, planimeter, level, contourborder and calculation card , all as essential tools for survey. With the development of electronic, photoelectric, and satellite technology, many hi-tech instruments such as electronic telemeter , satellite positioning system have been invented to improve the precision and quality of the survey.

Unit inquiry
  • Calculating tape
    • Years of usage: between 1947 and 1960
      Applications: used for calculating the survey results
  • Concrete Pile of Traverse Point
    • Years of usage: 1974 up to date
      Remarks:
      1. Used for control point
      2. Used for traverse point on clay ground
  • Compansating Planimemter
    • English description: Compansating Planimemter
      Manufacturer: TAMAYA FACTORY, JAPAN
      Years of usage: between 1947 and 1966
      Applications and remarks: also known as integraph and designed with calculus principle, planimeter is used for calculation of plane survey with easy usage and fast calculation.
  • Tilting Screw Level
    • English Description: Tilting Screw Level
      Manufacturer: TAMAYA FACTORY, JAPAN
      Model: A3-Ⅱ
      Years of usage: between 1950 and 1966
      Applications or remarks: survey of height (directly)
  • Electronic Distance Meter
    • English Description: THEODOLITES
      Manufacturer: TOPCON FACTORY, JAPAN
      Model: 6 kbps (GTS-2R)
      Years of usage: between 1990 and 2000
  • Woven Tape
    • English Description: Woven Tape
      Years of usage: between 1947 and 1996
      Applications or remarks: for distance measuring
  • Theodolites
    • English Description: THEODOLITES
      Manufacturer: KRIATTORT FACTORY, JAPAN
      Model: 20 seconds kbps
      Years of usage: between 1950 and 1965
      Applications or remarks: Angle surveying (horizontal angle, vertical angle)
  • Calculation card
    • Years of usage: between 1947 and 1974
      Applications: used for calculating the survey results
  • Concrete Pile and Plastic Pile
    • Years of usage: 1976 up to date
      Remarks:
      1. Positioning land boundary
      2. Marking boundary for clay ground
  • Compansating Planimemter
    • English description: Compansating Planimemter
      Manufacturer: JAPAN
      Applications and remarks: also known as integraph and designed with calculus principle, planimeter is used for calculation of plane survey with easy usage and fast calculation.
  • Plane Table
    • English description: Plane Table
      Manufacturer: TAMAYA FACTORY, JAPAN
      Years of usage: between 1976 and 1985
      Accessories: lens cover, point mover, pane compass, plumb bob, pointer
      Applications:
      1. Survey of distance (slope and plane distance)
      2. Survey of height (indirect)
  • Rotate-Lens Level
    • English Description: Wye-Level
      Manufacturer: TROY FACTORY, JAPAN
      Model: W&L‧E‧GURLEY
      Years of usage: between 1952 and 1962
      Applications or remarks: survey of height (directly)
  • Plastic Tape
    • English Description: Plastic Tape
      Years of usage: between 1976 and 1996
      Applications or remarks: for distance measuring
  • Theodolites
    • English Description: THEODOLITES
      Manufacturer: SOKKISHA FACTORY, JAPAN
      Model: 20 seconds kbps
      Years of usage: between 1950 and 1968
      Applications or remarks: Angle surveying (horizontal angle, vertical angle)
  • Plane Optical Distance Meters
    • English description: TARGET I
      Manufacturer: Taiwan Optical-electronics Plant FACTORY, Taiwan ROC
      Model: TARGET I
      Years of usage: between 1985 and 1990
      Accessories: lens cover, point mover, pane compass, plumb bob, pointer
      Applications:
      1. Survey of distance (slope and plane distance)
      2. Survey of height (indirect)
  • Years of usage: between 1947 and 1974
    • English description: New Manual Logarithms
      Manufacturer: Ricoh, Japan
      Years of usage: between 1947 and 1969
      Applications and remarks: there are seven-digit logarithms, trigonometric function and other logarithms listed in the Manual, also in it are the natural logarithms, hyperbolic functions, exponential functions, power functions, integral square, cube root, with theodolitic distance, stadia sheet and unit conversion sheet attached.
  • Digitizer
    • Years of usage: 1997 up to date
      Model: Calcomp 4ES2470268
      Remarks: used for access of point position
  • Flat-Top Level
    • Manufacturer: DIETZGEN FACTORY, USA
      Years of usage: between 1958 and 1965
      Applications or remarks: survey of slop distance and height
  • Plastic Tape
    • English Description: Plastic Tape
      Years of usage: between 1976 and 1996
      Applications or remarks: for distance measuring
  • Theodolites
    • English Description: THEODOLITES
      Manufacturer: TAMAYA FACTORY, JAPAN
      Model: 20 seconds kbps
      Years of usage: between 1950 and 1968
      Applications or remarks: Angle surveying (horizontal angle, vertical angle)
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    • Land Parcellary Plan Thematic Maps
    • Original Results of Digital Cadastral Survey
    • Provision of 3D Model in Physical Format
  • Online Service
    • Taiwan MAP Store
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    • NGIS Basic Topographic Map Website
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    • National Continuously Operating Reference System and Basic Control Point Inquiring System
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  • Surveying Knowledge
    • Evolution of Maps
    • Surveying Instruments
    • Evolution of Cadastral Surveying
  • Law & Regulations
    • Laws & Acts
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Address: 4F ., No. 497, Liming Rd., Sec.2, Taichung City 408281, Taiwan (R.O.C.)

Tel: +886-4-22522966

Service time :0800-1730

Last Updated
2025-07-03
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