| Domain | Definition | ||
| Mining | A trade name for a precise electronic surveying device that transmits a radio-frequency signal to a responder unit, which in turn transmits the signal back to the interrogator unit. The time lapse between original transmission and receipt of return signal is measured and displayed in a direct digital readout for eventual reduction to a precise linear distance. It operates on the same principle as the tellurometer. See also: tellurometer. (references) | ||
Source: compiled by the editor from various references; see credits. | Top | ||
