Dimensional instruments

thumb|Goniometer made by Develey le Jeune in Lausanne, late 18th–early 19th century

thumb|Drawing of an inclinometer, Museo Galileo, Florence thumb|Measuring slope with a clinometer An inclinometer or clinometer is an instrument used for measuring angles of slope, elevation, or depression of an object with respect to gravity's direction. It is also known as a tilt indicator, tilt sensor, tilt meter, slope alert, slope gauge, gradient meter, gradiometer, level gauge, level meter, declinometer, and pitch & roll indicator. Clinometers measure both inclines and declines using three different units of measure: degrees, percentage points, and topos. The astrolabe is an example of a

A planimeter, also known as a platometer, is a measuring instrument used to determine the area of an arbitrary two-dimensional shape.

distance amplifying instrument

inspection tool used to check a workpiece against its allowed tolerances

thumb|A simple structure of a dilatometer for the measurement of the thermal expansion of liquids and solids A dilatometer is a scientific instrument that measures volume changes caused by a physical or chemical process. A familiar application of a dilatometer is the mercury-in-glass thermometer, in which the change in volume of the liquid column is read from a graduated scale. Because mercury has a fairly constant rate of expansion over ambient temperature ranges, the volume changes are directly related to temperature.

thumb|alt=A common spherometer.|A common spherometer. A spherometer is an instrument used for the precise measurement of the radius of curvature of a curved surface. Originally, these instruments were primarily used by opticians to measure the curvature of the surface of a lens.

woodworking or a metal working tool used for marking 90° angles and measuring a piece of wood

handtools for marking and checking 90° and 45° angles

device for measuring the physical geometrical characteristics of an object

thumb|300px|A schematic of an orchidometer An orchidometer (or orchiometer) is a medical instrument used to measure the volume of the testicles.

tool used to mark angles in woodworking

flat tool used in carpentry to mark right angles and calculate angles

alt=NANOVEA PS50 Non-Contact Optical Profilometer|thumb|322x322px|Non-Contact Optical Profilometer thumb|250px|A contact profilometer at Laboratory for analysis and architecture of systems|LAAS technological facility in Toulouse, France.

hand tool to extract wood tissue section from a living tree for analysis

measuring or transfer tool that is used in the process of accurately measuring holes

thumb|Crescograph, Bose Institute, Kolkata A crescograph is a device for measuring growth in plants. It was invented in the early 20th century by Jagadish Chandra Bose.

device to mark graduations on measuring instruments

measuring and marking tool