Patent ID: 9625363
Date: 2017-04-18
CPC Classifications: G01N,G01V

Claim:
1. A measuring head, intended to be provided on a dynamic penetrometer and suitable to be connected to a string of rods provided with an end tip, this measuring head comprising: a driving head intended to receive an impact to be transmitted, via the rest of the measuring head, to the string of rods, the end tip being suitable for being driven into the ground when an impact is applied on the driving head, a central rod for transmitting the impact from the driving head to the string, said central rod has a first end, which is turned towards the driving head, and a second end, which is opposite to the first end and which is suitable for engaging with the string, and said central rod is provided with at least one deformation sensor, for collecting signals that are representative of the variations of the resistive force at the end tip and of the acceleration during the driving of the end tip in the ground under the effect of the impact on the driving head, and at least one absorption member, which is interposed between an end impact receiving portion of the driving head and the second end of the central rod and which is suitable for filtering a wave transmitted to the string when the end impact receiving portion of the driving head receives the impact.