51results about How to "Applicable to online detection" patented technology

The invention discloses a device used for quick online nondestructive detection on cracks of poultry eggs on the basis of acoustic characteristic and a method thereof; the poultry egg is arranged on a supporting idler wheel; a stepping motor is connected with the supporting idler wheel and drives the supporting idler wheel; a microphone which is arranged beside the poultry egg is sequentially connected with a computer by a signal amplifier, a filter and an A / D converter; when the poultry egg rolls on a chain, different parts of the poultry egg are mechanically knocked at multi-point by a knocking rod; sound signals collected by the microphone are amplified by the signal amplifier, filtrated by the filter and converted by the A / D converter and subsequently input to the computer, thus comprehensively judging the cracking situation of the poultry eggs. The device and the method can adapt to poultry eggs with different types and different sizes, realize the classification and automatic detection of the poultry eggs during the production processing and circulation process, and can be popularized and applied to the nondestructive detection on the hardness and the maturity of agricultural products such as fruits, vegetables, and the like.

The invention discloses a method and a system for detecting the mass flow rate of particles in a pneumatic conveying process, and the mass flow rate of materials conveyed in a pipeline is accurately detected through a series of treatment by collecting sound wave signals generated by the action of fluid particles in the pipeline and the wall surface of the pipeline in a non-invasive manner. The sound wave detection adopted by the invention is a non-invasive detection method, and the detection device is simple, safe, environment-friendly and suitable for online detection in the industrial production process. By adopting an acoustic sensor array, through data fusion of multiple sensors, particle flow forms, concentrations and speed distribution under different conveying flow patterns can be effectively associated with the conveying mass flow rate, so that the mass flow rate of conveyed particles can be accurately detected under different conveying conditions (different conveying flow patterns, different conveying pipelines and different conveying materials). Compared with an existing mass flow rate detection technology, the method is more sensitive, accurate and wider in application range.

The invention is a kind of optical scanning external diameter measuring system which hasn't the scanning object lens and the measuring method. The system is made up of two or more optical scanning units without scanning object lens, each unit is assembled with any angle, each unit is made up by connecting light source, collimating mirror, scanning rotary mirror, the receiving object lens, photoelectric receiver. The photoelectric receiver connects with computer through wires. The method uses any two units as a group, the distance between the scanning mirror and the reflection centre point is l0, the offset centre angle to light of the measured object are 2theta 1 and 2 theta 2, the line between the object gravity center and the scanning mirror reflection centre point are alpha 1, alpha 2, the diameter is d: d= dkl0 according to following method, k= 1 / (cos alpha 1 / sin theta 1 + cos alpha 2 / sin theta 2). The invention has no object lens, the producing is easy, it realiezes the computer digit compensate for system difference, the stability is good, it has high reliability, the assemble and maintaining is easy, the cost is low.

The invention relates to an on-line double-sided automatic thickness measuring device of organic glass, which mainly comprises a control system, a machine frame, a support frame, a detection frame, a cross beam, a cross beam regulator, a feeding distance measuring device and a plurality of thickness measuring devices, wherein the upper end of the machine frame is fixedly connected with the detection frame, the cross beam is connected onto the upper edge frame of the detection frame through the cross beam regulator, the inside of the detection frame is fixedly connected with the support frame,a plurality of support guide shafts are arranged on the support frame, a feeding speed measuring device is arranged at one end of any support guide shaft for measuring the feeding distance of an organic glass plate, the thickness measuring device comprises upper thickness measuring units and lower thickness measuring units, and a plurality of upper thickness measuring units and lower thickness measuring units are respectively and symmetrically arranged on the cross beam and the detection frame for detecting the thickness information of the front side and the back side of multi-point positionsof the organic glass plate. Because the control system is used for processing and calculating the position information of entity space three-dimensional lattices of the organic glass in real time forconfirming the dimension quality of the plates, the on-line double-sided automatic thickness measuring device has the advantage of simple and compact structure, and can be directly arranged at a production line for real-time measurement.

The aim of the invention is to provide a flaw detection technology for carrying out comprehensive, rapid and automatic detection on a median plate or a thin plate by electromagnetic ultrasonic horizontal polarization shearing wave, a steel sheet automatic detection method for rapidly and effectively detecting various disadvantages through an electromagnetic ultrasonic SH wave technology and a device thereof. The device consists of an electromagnetic ultrasonic detection unit and a circuit system. The method adopts SH wave to detect the median plate and the thin plate, is sensitive to the disadvantages of the surface and the inside of the steel plate, receives a pure signal and can effectively detect various disadvantages of the steel plate. As the SH wave has small attenuation during transmission, the SH wave has long detection distance, can realize the comprehensive detection of the steel plate with fewer probes and greatly improve the detection efficiency. The method combines an ultrasonic transmission method and a reflection method, can detect various disadvantages of the steel plate, can judge the shapes and positions of the disadvantages, and has high confidence level of a detection result.

The invention discloses a method for measuring the fluidization parameter of a gas-solid fluidized bed. The method comprises the following steps of: 1) measuring an electrostatic signal in the gas-solid fluidized bed by use of an inductive electrostatic sensor, wherein the inductive electrostatic sensor is connected with a monitoring system; 2) analyzing the filtered electrostatic signal, and extracting the characteristic parameter; 3) associating the characteristic parameter of the electrostatic signal with the parameters such as particle concentration, speed, circulation time, particle clustering or flaking, fluidized state and the like, and establishing prediction models of the parameters respectively; and 4) detecting the parameters such as particle concentration, speed, circulation time, flaking / blocking and the like as well as the distribution and fluidized state thereof in the fluidized bed by use of the established prediction models. The method adopts a simple detection device, is safe and environmentally-friendly, has high accuracy, and is suitable for the online detection of the industrial production process.

The invention relates to a device and a method for detecting the surface shape of large-caliber plane optical elements, and belongs to a device and a method for detecting the quality of optical elements. The device and the method aim to solve the problems in the prior device and the prior method for detecting the large-caliber plane optical elements. The device comprises a stand, an image acquisition and processing system and a three-dimensional precision motion control system, wherein the three-dimensional precision motion control system comprises a vertical motion guide rail which is rotatably arranged on the stand, and a horizontal motion guide rail which can slide on the vertical motion guide rail; a rotary shaft which is fixed on the vertical motion guide rail is connected with a rotary power mechanism; and the image acquisition and processing system comprises a first scanning penta prism which is arranged on a slider of the horizontal motion guide rail, a first reference penta prism and a second scanning penta prism which are coaxially fixed with the horizontal motion guide rail, a second reference penta prism which is coaxially fixed with the vertical motion guide rail, andan optical head which is coaxially fixed with the horizontal motion guide rail. The device and the method can be applied to detection of the large-caliber plane optical elements, and are particularlysuitable for online detection.