Electronic Distance Measurement

The digital bubble vial provides a visual reference when measuring horizontal distances.

Electronic distance measurement.

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. Electronic distance measuring instrument is a surveying instrument for measuring distance electronically between two points through electromagnetic waves. The electronic distance measuring equipment is differentiated into three types as microwave instrument infra red equipment and light wave equipment. 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.

And it fits in any pocket for easy access. Normally these used to measure long distances within 100km with their frequency range. Does everything a theodolite does but measures distance accurately using a laser beam reflected from a mirror. It is an instrument that combines the angle measurements that could be obtained with a traditional theodolite with electronic distance measurements.

What is electronic distance measurement edm. More product details close. It is accurate up to 1 16 in. Electronic distance measurement edm is a method of determining the length between two points using electromagnetic waves.

It is useful for surveying but distance measurements by tachometry are not too accurate. 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. This gives great precision when surveying. 8 9 field procedure of electronic distance measurement 8 10 geometry of electronic distance measurements 8 11 edm without reflecting prisms reflector less measurements.

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. Edm instruments are highly reliable and convenient pieces of surveying equipment and can be used to measure distances of up to 100 kilometers. The surveying equipment functions with the help of micro waves come under this category.