METHOD AND DEVICE FOR TESTING SAMPLES OF AQUEOUS MEDIUM Russian patent published in 1995 - IPC

FIELD: material testing. SUBSTANCE: aqueous sample is preliminary cleaned from solid particles, which have sizes to excess over tolerant ones. The sample is placed inside the space being isolated from environment. When generating and receiving information signal in the sample, the sample is screened from external sources of information signal. Device for testing aqueous medium samples has chamber, disposed inside the case. The chamber is provided with inlet and outlet holes. The device has hydraulic unit for pumping water through chamber, and contrivance for cleaning water from solid particles, which have sizes larger than tolerant ones. Contrivance for water cleaning is mounted at the point, where inlet hole of the chamber is disposed. Output of transmitting optical system is mounted onto internal surface of the chamber. Information signal receiver is mounted for reception of information signal from internal space of the chamber. Hydraulic unit is made in form of hydraulic pump and pipe-line, which is connected with outlet hole of the chamber. Light emitter is connected with transmitting optical system by means of optical cable and is mounted onto ship-carrier or onto underwater apparatus. Information signal receiver is made in form of electromagnet receiver, acoustic receiver, and optical transducer. The device is provided with delay line and registrar. Pulse light emitter is used in the device. The emitter has control unit, which is connected to control input of registrar through delay line. Outputs of electromagnet, acoustic, and optical information signal receivers are connected with signal inputs of the registrar. EFFECT: improved precision; improved efficiency. 2 cl, 10 cl, 1 dwg