Measuring Instruments

Accelerometer - physical, accelerations Actinometer - heating power of sunlight Alcoholmeter - alcoholic strength of liquids Altimeter - altitude Ammeter - electric current Anemometer - windspeed Audiometer - hearing Barkometer - tanning liquors used in tanning leather Barometer - air pressure Bettsometer - integrity of fabric coverings on aircraft Bevameter - mechanical properties of soil Bolometer - electromagnetic radiation Breathalyzer - breath alcohol content Caliper - distance Calorimeter - heat of chemical reactions Cathetometer - vertical distances Ceilometer - height of a cloud base Colorimeter - colour Creepmeter - slow surface displacement of an active geologic fault in the earth Declinometer - magnetic declination Densitometer - degree of darkness in photographic or semitransparent material Diffractometer - structure of crystals Dilatometer - volume changes caused by a physical or chemical process Disdrometer - size, speed, and velocity of raindrops Dosimeter - exposure to hazards, especially radiation Dumpy Level - horizontal levels Dynamometer - force,torque or power Elaeometer - specific gravity of oils Ellipsometer - refractive index, dielectric function, thickness of thin films Eudiometer - change in volume of a gas mixture following combustion Evaporimeter - rate of evaporation Fathometer - ocean depth Frequency Counter - frequency of alternating current Galvanometer - electricity Gas Pycnometer - volume and density of solids Glucometer - blood glucose Graphometer - angles Heliometer - variation of the sun's diameter Hydrometer, Densimeter - specific gravity of liquids (density of liquids) Hygrometer, Psychrometer - humidity Inclinometer - angle of a slope Interferometer - wave interference Katharometer - composition of gases Lactometer - specific gravity of milk