45 results about "Wireless measurement system" patented technology

A measuring system for measuring a communications device comprising an antenna-array. The measuring system comprises a controller, a measuring device, a measuring antenna and a device mount. The measuring device performs measurements with regard to the communications device. The device mount rotates the communications device about at least one axis. The controller sets a maximum gain direction of the antenna-array. The controller (i) controls the device mount to rotate the communications device, compensating for the set maximum gain direction, until the set maximum gain direction meets a direction of the measuring antenna with respect to the communications device, and (ii) determines an actual maximum gain direction of the antenna-array by iteratively rotating the communications device and determining a respective gain for each iteration, and determines the actual maximum gain direction as a rotation of the device mount that corresponds to the iteration of maximal gain.

The present invention provides a real-time torque wireless measurement system for a machine tool spindle, including a signal collection and transmission part and a remote monitoring part, wherein: the signal collection and transmission part includes a tool handle assembly, a torque sensor and a card cover installed on the machine tool spindle, The remote monitoring part includes a wireless signal receiving device and a computer processing system. The wireless signal receiving device receives the signal sent by the signal collecting and transmitting part, and transmits the signal to the computer processing system for data management, storage and display. The invention avoids the problem of contact fatigue and wear, and protects the measurement circuit; uses the wireless signal transmission mode based on GPRS, the transmission distance is long, and the transmission data rate is high; Process status management, control and safety warning.

The invention discloses a method for eliminating outburst risk of two regional coal seams by using long bedding directional drilling holes. The method comprises the following steps of directionally constructing a plurality of long bedding directional drilling holes in a return-air gate of the coal working face by adopting a drilling rig, wherein each long bedding directional drilling hole penetrates through a stoping area coal seam and a to-be-excavated coal roadway strip coal seam of the coal working face; and then extracting gas in the stoping area of a sectional coal seam and the to-be-excavated coal roadway strip coal seam by using multiple groups of long bedding directional drilling holes. The method disclosed by the invention has the advantages that directional drilling is realized by using a wireless measurement system while drilling and a pneumatic screw motor, so that the coal exposing rate of bedding drilling is greatly improved, and the outburst elimination effect of drilling is ensured; the long bedding directional drilling holes are constructed in the return-air gate of the coal working face, and the outburst of the stoping area coal seam and a to-be-excavated coal roadway strip coal seam of the coal working face is simultaneously eliminated, so that high-cost gas control rock roadway construction is avoided.

The invention discloses a fiber sensing wireless measuring system and a data processing method thereof. Light emitted by a broadband light source enters a first spatial optical calibrator and a secondspatial optical calibrator through a circulator; an optical signal obtained by wireless coupling of the two optical calibrators is reflected by an FBG optical sensor; the reflected optical signal isprocessed by wireless coupling of the two optical calibrators and the processed signal enters a high-speed demodulator through the circulator; and then the processed signal is transmitted to a computer for signal processing. Therefore, a phenomenon of the U type drifting of the central wavelength due to the excessive insertion losses is avoided; and accurate demodulation of physical parameters isrealized.

The invention discloses a wireless measurement system for debugging a power transmission lines. The wireless measurement system for debugging power transmission lines comprises a wireless voltage collecting and transmitting node, a wireless current collecting and transmitting node and a wireless center master station, wherein the wireless voltage collecting and transmitting node is connected with a low voltage side of a capacitive voltage divider of an outdoor field of a transformer substation, and is used for collecting a voltage signal of the low voltage side of the capacitive voltage divider; the wireless current collecting and transmitting node is connected with a hall current sensor installed on the secondary side of a current transformer, and is used for collecting a current signal of a hall current sensor; the wireless center master station comprises a center master station wireless communication module, a server and a client; the server is connected with a wireless communication module of the center master station; data collected by the wireless current collecting and transmitting node and the wireless current collecting and transmitting node are uploaded to the wireless center master station in real time. The wireless measurement system for debugging power transmission lines, which is provided by the invention, can prevent the complex wiring operation of a wireless circuit debugging field, reduces the working intensity greatly, improves the working efficiency, and can guarantee weak current equipment of a measurement system and personal safety of measurement workers.

The invention provides a system and a method for wireless measurement of a detection instrument. The system for wireless measurement of the detection instrument comprises a control terminal and a terminal detection instrument, wherein the control terminal wirelessly communicates with the terminal detection instrument. According to the technical scheme, on the one hand, the instrument detection data can be acquired, and on the other hand, the instrument detection data can also be acquired by wireless equipment.