33 results about "Terrane" patented technology

The invention relates to a rotary disc deep base point displacement meter and a measuring method thereof, which are suitable for measuring the axial displacement along drilling holes, of the insides of surrounding rocks or foundations in roadways, tunnels, underground chambers and foundation engineering, and monitoring the stability. The displacement meter mainly comprises measuring cylinders, orifice devices, a fixer, a base point anchor head and a measuring connecting line. The measuring method sends the displacement meter into a measuring drilling hole according to different depths measured; when the surrounding rocks with different depths on the circumference of the underground engineering move, the measuring cylinders on the outside of orifices automatically mark out the displacement distance of anchor points with different depths; when the base point anchor head and the orifice distance are varied, the measuring connecting line draws a cursor slider and compresses a spring, and the displacement variation length can be clearly read out through the scales displayed on the outer surfaces of the measuring cylinders; and the reading of various measuring cylinders after deformation are read and recorded, and the displacement of terranes of different measuring points can be obtained by deducting the reading with respective initial reading. The device is simple, has reliable overall structure and strong engineering adaptability, and is accurate to measure and convenient to assemble and measure.

An emitter of the bottom hole assemble(BHA)is used for generating transient state electromagnetism signal in the earth terrane. A receiver of the BHA is used receives the signals indicating the stratum resistivity and the distance to the stratum boundary. The shaft of the emitter and the receiver can be parallel or form angle with the shaft of the BHA. The emitter and the receiver are arranged on the pipe containing the incisal path BHA damping part for attenuating vortex. The damping part may comprise nonelectrical conductivity material, such as ferrite, on the outer surface.

The invention relates to a portable terrane communicator for down-hole coal mine. Now traditional wired communication technology is still used in down-hole. When heavy accident occurs under coal mine, communication system suffers heavy destruction and can not transmit information in time, which results in loss of best rescuing opportunity, human life and possession. The inventive portable terranecommunicator using terrane as transmitting medium is composed of DSP modulation and demodulation circuit, CPU controller, vocoder, receiving and transmitting converter, A / D conversion circuit, amplification circuit, microphone, speaker, register, D / A conversion circuit, receiving and amplification circuit, smooth filter circuit, preamplifier circuit, transmitting amplification circuit, antenna. In the invention computer hardware technology and electronic element circuit technology are combined to change communication technology of using terrane as transmission medium into reality.