Measurement - Tachymeter

On the Tachymeter tab, select a station to view or edit the tachymeter measurement. The Tachymeter tab displays polar mapping data that has been imported from an instrument of type Tachymeter.

Tachymeter tab	Description
Select Station/Identifier	Selects the station to view. The list displays the identifier of the stations that have been imported.
Create Station	Creates a station. Use this function to add measurements manually. See also Measurement - Adding a Station
Delete Selected Station	Deletes the selected station. For example, if you want to import a station once more, using different instrument settings.
Detail Points area	To exclude or include detail points from the adjustment calculation. The command applies to the selected station. These commands can also be started for the whole calculation project. See also Detail Points Configuration
Activate All	Includes all detail points of the selected station by setting the Active attribute in the Measurement Data tab.
Deactivate All	Excludes all detail points of the selected station by clearing the Active attribute in the Measurement Data tab.
Station area	Displays the station data.
Parameter	Click to display all options.
Identifier	Specifies the station identifier.
Field Code	Specifies the field code of the station.
Instrument	Specifies the instrument.
Operator	Specifies the operator.
Instrument height	Specifies the instrument height, as imported from the field data. In the Global Settings, use the Category 2 for small units to specify the display unit. See also Unit Settings.
Pressure	Specifies the pressure. This value is used to calculate the distance reduction.
Centring Error	Specifies the centring error, as defined in the instrument settings. In the Global Settings, use the Category 2 for small units to specify the display unit. See also Unit Settings.
Temperature	Specifies the temperature.
Orientation	Displays the calculated station orientation.
Standard Orientation	Displays the standard deviation of the orientation.

The measurement is displayed on two tabs, Measurement Data tab, and Results tab.

Measurement Data Tab

Measurement Data tab	Description
Identifier	Unique identifier, such as a point number. Imported from the field data.
FC	Field Code that specifies the feature class of the point. Imported from the field data.
Point Type	Specifies whether the point is a Base Point Detail Point. See also Measurement - Point Types.
Sub Type	Specifies whether the point is measured Face 1 = Normal Face 2 = Second Face See also Measurement - Point Types.
Active	Specifies, whether a point is used for approximation or adjustment calculation.
Target H	Height of the reflector on the target point. Imported from the field data. For example in RO files the target height is stored with the zh code.
Dist	Measured distance. Observation.
Dist Type	Indicates whether the distance has been measured horizontally, or as a slope. See also Measurement - Distance Types.
Std Dist	Standard deviation of distance. This value is calculated using the instrument settings.
LO	Length offset. Imported from the field data. Indicates the distance between the target point and prism. See also Measurement - Offset Types.
Hz	Measured horizontal angle to the target point. Imported from the field data.
Std.Hz	Standard deviation of horizontal angle. Imported from the instrument settings.
CO	Cross offset of the measurement. Imported from the field data. See also Measurement - Offset Types.
V Type	Indicates whether the vertical angle is a zenith, a vertical or a nadir angle See also Measurement - Vertical Angle Types.
V	Measured vertical angle. Imported from the field data.
Std. V	Standard deviation of vertical angle. Imported from the instrument settings.
H.Diff	Measured height difference. Imported from field data.
Std. H.Diff	Standard deviation of height difference. Imported from the instrument settings.

Results Tab

The Results tab displays the residuals and indicators for each observation, such as distance, horizontal angle, vertical angle, and measurement of height difference.

Results tab	Description
Identifier	Unique identifier, such as a point number. Imported from the field data.
FC	Field Code that specifies the feature class of the point. Imported from the field data.
Vi	Specifies the residual error of the observation.
Zi	Specifies the local reliability. See also Internal Reliability Zi.
Nabla	Specifies the largest undetectable error of the observation.
Wi	Displays the normalized residual error of the observation. See also Normalized Residual Error Wi.
Gi	Specifies the estimated size of an error in the observation. See also Normalized Residual Error Wi.