SU700222A1 - Hydroelectric sensor - Google Patents

Description

The invention relates to the field of measurement technology and can be used to measure the position of moving objects and to control linear dimensions and products that allow water to get on their surface, for example, in the manufacture of rolled products.

The most intuitive to the onHCbTsaeMON-iy sensor to the technical essence and the achieved result is a device for indicating the metal, including a supply pipe with a cascade and a directed stream of water on the metal. A stream of water closing on the metal is one of the arms of the nonequilibrium electric bridge i j.

The disadvantage of such a sensor is the impossibility of obtaining stable transverse dimensions of the free jet over a sufficiently large length of its working asna, the supply line to the sensor of the working fluid in the atsi-l case should have an area of transverse cross section not less than 10 times the corresponding area of the tip forming free jet, pipelines near the Fie sensor should have bends and cross-section changes, it is impossible to use pipeline x; turbulent POTOKSZh1 electrically conductive fluid. In addition, when using water in: the quality of an electrically conductive liquid, pulsating jet breaks occur due to gaseous inclusions, which are particularly intense due to an increase in water temperature during

the transition from the underground to the internal shop.

The purpose of the invention is to obtain a high-quality stable water jet with a long working area and to use the main supply lines for the sensor supply with any turbulence.

This is achieved by the fact that the sensor is equipped with a chamber with a flap for a gasherg velocity supplying the rail and an opening in the upper part of the chamber for diverting gas inclusions installed between the inlet pipe and the nozzle forming the jet and connected to the electrical insulating pipe and, on the other hand, with an inlet pipe, Figure 1 shows a diagram of the proposed hydroelectric sensor. The sensor consists of a supply pat- ter 1 connected at one end to the water mains and the other to the camera 2. The chamber has a shield 3, which is disk-shaped and is attached to the wall of the chamber at several peripheral points. The flap is located 0.5–5 mm from the chamber wall; from the water supply side. In the upper part of the chamber there is an opening 4 for the removal of gas inclusions. The cross section of this hole is 1 ° –1 ° times smaller than the free jet 5, and the cross section of chamber 2 in SO 20O is larger than the cross section of free jet 5. The camera body in this case is made of electrically conductive material and is grounded. also electrically insulating nozzles 6, interconnected by electrically conductive fittings 7, - The outlet fitting is connected to the nozzle 8, which directs the water jet to the surface; it is controlled by the metal 9, Datum works as follows c 6pfiaoM. The flow of water from the main pipeline through the nozzle 1 entering the chamber 2, hits the flap 3, spreads evenly over the surface of the cytcium and, the loss in speed, flows into the cavity of the chamber, filling it with water. When the chamber is completely filled under the action of an overpressure in it, a small part of the water is poured out through an opening 4 located in the upper part of the chamber. The gas bubbles entering the water flow chamber float up and out through the opening 4. The flow of water, soothed and free from gas inclusions, from the chamber 2 through the electrically insulating branch pipes b and the electrically conductive fittings 7 through the nozzle 8 is poured with a free jet 5 onto the surface of the metal to be tested 9 transported by the roller conveyor 10, the water columns located in the electric isolation pipes 6, and the jet 5 is free of 1Bl. electrical resistors, included in the bridge circuit, powered by an alternating current source 11, with electrical information signal is removed from the oscillator diagonal of the bridge to which the measuring device is connected 13 Through amplifier 1c1, Scale n) Iborg is graduated in linear lengths of jet 5, The stability of the parameters of a free jet with a large working area length allows pa ;: it was possible to take into account from the diagonal that continuous reproducible information of an electrical signal that reflects through the stream length of the jet 5 or a ram (the fuses of the products, the line supplying the sensor with an electrically liquid (water) is not a matter of credit. 1 n (hard requirements because success (noroKaj, elimination of its turbulence occurs in chamber 2 of the guide; 1 electr; Airman's Pilot - Hydroelectric: pp sensor,: a pubic camera with a shield for damping speed, electrically conductive liquid) -,; o & 3o.t. is used for its power supply to; .1 pipe with any turbulence, because. The chamber 2 is completely calmed down by the supply stream, which stabilizes the geometric meters of the measuring jet ,. The presence of a hole in the upper part, the camera allows you to remove the emitted gas vkk, yucheni and get a measuring jet with a single rod and electr ;; similar properties in length ,. High quality is stable (; reoMeT; jH4ecKnxs physical and electrical parameters in the strings of the sensor, obtained by installing a chamber with a shield for the speed of the fluid and opening to remove gas inclusions, allow you to control the linear dimensions of the moving parts. p m y, p a and S o bre n i s; Hydro-electric SMM sensor, including supply pipe, electrical insulation pipe; electrically conductive fittings and a guide stream of water to the surface of the controlled source and tani and ushite, about tp and h and y and with Tfelvit that, in order to fall a quality stable water jet with a long length: the working stench of the water using CI pipe with any turbulence, it is equipped with a chamber with a flap located perpendicular to the cap-rapenia of st. ui RoaMf and a hole in the upper part