03 Jul

Digital Penetrometer

Digital Penetrometer’s.  Ok, I’ll be the first to admit it.  Up until a week ago, I had no clue what a Penetrometer was.  And I’m sure there are some of you out there, rolling your eyes as you’re reading this, so, cut me some slack.

A Penetrometer is a device to test the strength and consistency or hardness of a substance by measuring the depth or rate of penetration . There are many different types of penetrometers. They are usually round or cone shaped. The penetrometer is dropped on soil or it is pressed against soil to measure how deep a hole it makes.   For example, this is a way to decide if soil is strong enough to build a road on. Scientists can use a penetrometer to measure how much moisture is in soil. Penetrometers are used on space probes such as the Cassini-Huygens probe, to measure the amount of moisture in soil on other planets.

Penetrometers are also designed for ASTM penetration tests on petroleum products and for consistency tests on a wide range of food products, cosmetics, pastes and other solid to semisolid products.  A standard cone or needle is released from a penetrometer and allowed to drop freely into the sample for 5 seconds (or a different specified interval) at constant temperature. The depth of penetration of the cone or needle into the sample is measured in tenths of a millimeter by the penetrometer.

Of course, if you are contemplating ordering a Penetrometer, you pretty much know what you need. But, our staff here in the Lab Group of OpticsPlanet will be happy to assist you with any questions that you may have and in assisting you with your selection.

Stephen Gonshorek