A borescope may include a housing including a transparent viewing window, a bumper surrounding at least a portion of a periphery of the transparent viewing window, wherein the bumper is configured to be pressurized by a fluid, and at least one imaging assembly configured to visualize a field of view exterior of the housing through the transparent viewing window.

A sensor system is for measuring the profile of a snowpack along a snowpack passage. The sensor system has a probe and at least one processor. The probe has at least one first sensor set. The first sensor set has at least one first photoemitter for emitting light and at least one first photodetector for detecting light. A processor is provided for receiving output signals from the first sensor set. The processor is for calculating a snowpack profile.

Portable mini dynamic penetration test (MDPT) device includes a probe for penetrating into soil, the probe defining a cylinder with a cone head at a distal end of the probe and a rod attached at a proximal end of the probe, and a drive-weight assembly for driving the probe into soil, the drive-weight assembly including an approximately 17.5 lb hammer. In operation, the MDPT device is configured for use by an operator, wherein the operator can carry the MDPT device to a soil test site, set up the MDPT device at the soil test site, and test soil condition at the test site with the MDPT device.

A soil probing device includes comprises a probing rod with a measuring probe, a driving means for penetrating the probing rod into the ground, generators for generating acoustic compression and shear waves into the ground, detectors for detecting the said generated acoustic compression and shear waves. The detectors are built into the measuring probe. Also the generators are built into the measuring probe at positions that are interspaced at fixed distances in a z-direction from the detectors in the measuring probe. A processing unit CPU is provided for calculating velocities of the generated acoustic compression and shear waves that get to travel from the generators towards the detectors through local ground layers that lie adjacent the measuring probe in between the generators and detectors.

The invention relates to methods for determining a soil class, in which an earth borehole is introduced into the ground by means of a ground drilling device with a drill head, wherein a parameter of the ground drilling device and/or an operational parameter of the ground drilling device is assessed during the determination of which soil class is involved.

A system configured to determine a property of a paving-related material is provided. The system includes a measuring device configured for measuring a property of a paving-related material and a cellular computer device configured for being in communication with and receiving data from the measuring device.

In a piling construction management method a support strength of a hole bottom is measured with a penetration testing device before erecting a piling in a piling hole. The piling is erected in the piling hole when the measurement is at least a prescribed value. The penetration testing device has a knocking block with an integrated penetration shaft and the block is struck by a drive hammer in free-fall. The penetration testing device determines the support strength from the number of impacts required for the penetration shaft to penetrate to a prescribed depth from the hole bottom.

In a piling construction management method a support strength of a hole bottom is measured with a penetration testing device before erecting a piling in a piling hole. The piling is erected in the piling hole when the measurement is at least a prescribed value. The penetration testing device has a knocking block with an integrated penetration shaft and the block is struck by a drive hammer in free-fall. The penetration testing device determines the support strength from the number of impacts required for the penetration shaft to penetrate to a prescribed depth from the hole bottom.

Provided are a testing instrument and method for checking the degree of saturation of a pressure sensor unit of a piezocone.

Provided are a testing instrument and method for checking the degree of saturation of a pressure sensor unit of a piezocone.