Welcome to Measuring Microscopes

Need to take microscopic measurements?
With our large selection of measuring microscopes, you can find models suitable for looking at metal grain sizes, small machined parts in a quality control laboratory or biological specimens.  You can configure our video microscope system to show your images on a display monitor, then measure onscreen.  You can also use our metallurgical microscope measuring system to look at the effects of heat treating processes on metal grain sizes and structures.  The same unit can be used to view and measure transistors and circuits on printed silicon semiconductor wafers. Our biological measuring microscopes use high power magnification to display the specimen image where it can then be measured.

How does a quality control engineer or medical researcher measure under a microscope?  Microscopic measurement methods and practices vary, but the most common approach is with an eyepiece with a built-in measuring reticle (also called reticule). This glass measuring piece has graduated markings, often about 10 mm in length, with 10 divisions per millimeter, giving 100 total divisions of 0.1mm resolution.  This reticle measurement scale is superimposed over the microscopic image, so the number of reticle markings for a specific length on the specimen can be counted.  However, used alone, the reticle measurement (number of reticle markings representing your distance) is of little use. The reticle markings must be calibrated with the use of an additional device called a glass stage micrometer.  The stage micrometer has precise markings representing distances.  For example, it may be 1mm with 100 divisions, giving 0.01mm resolution.  With a calibration  procedure that our on-staff licensed professional mechanical engineer has written, you can precisely calibrate your ocular reticle with the stage micrometer.  For the most accuracy demanding applications, we recommend you purchase one of our stage micrometers with an accompanying certificate of calibration, traceable and to ANSI standards.

Other measuring methods using a microscope consist of using a simple X-Y stage to move the specimen under observation a distance in the X or Y direction, representing a length on the specimen. The distance traveled can be measured by looking at the graduation markings on the side of the XY stage. However, this method of measurement is not precise, especially for the smaller distances.  A more precise method replaces the normal microscope stage with one fitted with digital micrometers.  The digital micrometer measures the precise distance in that direction. So the crosshair on the reticle inside the microscope ocular eyepiece can be placed on one location, then the stage can be moved the desired distance to measure. The digital micrometers then give the digital readout of the distance traveled.  This method of measuring is often used with a toolmaker’s microscope. This type of instrument may often be used for also measuring angles, threads pitches,  and diameters of machined parts or tooling components in a machine shop. A metallurgical microscope may also be fitted with digital micrometers for the same purpose.

Whatever your needs are for a measuring microscope, please contact our qualified sales team members today for an educated recommendation for your precise application. Rest assured that our prices are generally the lowest around. We also guarantee our measuring microscopy equipment will meet your specific application.

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