At present, instruments such as steel tape, GPS, total station device are widely used in field archaeology to calculate length, area, volume, etc. Thus completes topographic mapping, probe layout and engineering layout. Handheld laser distance meter can also complete the interval measurement, area and volume measurement of tombs.
Interval measurement is the most used function in archaeological research. Here are two examples:
1.Make a plan and profile of the tomb. At this time, length, width and height of the tomb should be measured and registered, and then the tomb profile can be made according to the scale. Assume that the tomb is a vertical cave pit tomb with the same mouth and bottom. If you want to measure the width of the tomb chamber, set the laser distance meter (HOLO Laser RG-100) to start from the bottom of the device, and then stick the bottom of the laser distance meter to the tomb wall to keep it horizontal. Then the tomb width data will be directly displayed on the screen. Length measurement is similar to width. Depth measurement can be measured directly from the tomb mouth, and the target plate is placed at the tomb mouth so that it can be measured from the bottom of the tomb upward. If the bottom of the tomb mouth is different, in order to avoid the influence of the skewed tomb wall, an extension rod can be used for delayed measurement.
2. Measurement of the burial mound. Set laser distance meter to triangulation mode, and then set the measurement position as the pole. (it is best to be level with the bottom of the burial mound).
Area and volume measurement are also widely used in archaeology. For example, detecting area (tomb opening area), urban geographic area, detecting earthwork (tomb earthwork), etc. To achieve these functions, just switch the function of the laser distance meter to the corresponding option, and then measure two or three data of the entity to obtain area and volume data.