Electronic Distance Measurement

What is electronic distance measurement edm.

Electronic distance measurement. This text gives an up to date introduction into electronic distance measurement edm with a comprehensive review of modern equipment and procedures. Does everything a theodolite does but measures distance accurately using a laser beam reflected from a mirror. Normally these used to measure long distances within 100km with their frequency range. 8 9 field procedure of electronic distance measurement 8 10 geometry of electronic distance measurements 8 11 edm without reflecting prisms reflector less measurements.

The surveying equipment functions with the help of micro waves come under this category. Electronic distance measurement edm is a method of determining the length between two points using phase changes that occur as electromagnetic energy waves travels from one end of the line to the other end. Thanks to its laser precision technology and real time measurement mode it takes instant and reliable measurements up to 135 ft to size up the job in seconds. The main instrument for surveyors on site today is the total station which is an example of electronic distance measurement.

It is useful for surveying but distance measurements by tachometry are not too accurate. It is excellently suited as a text for undergraduate and graduate students and an invaluable reference for practicing surveyors geodesists and other scientists using edm as a measuring tool. It is an instrument that combines the angle measurements that could be obtained with a traditional theodolite with electronic distance measurements. Edm instruments are highly reliable and convenient pieces of surveying equipment and can be used to measure distances of up to 100 kilometers.

Electronic distance measuring instrument is a surveying instrument for measuring distance electronically between two points through electromagnetic waves. The digital bubble vial provides a visual reference when measuring horizontal distances. This gives great precision when surveying. Laser measure makingtec 131ft m in ft mini laser distance measure pythagorean mode lcd backlight display laser measuring tape volume area measurement digital laser tape measure x40 by makingtec 19 99 19.

More product details close. And it fits in any pocket for easy access. Electronic distance measurement edm is a method of determining the length between two points using electromagnetic waves.