70results about How to "Realize fully automatic measurement" patented technology

The utility model discloses a method for testing the frequency properties of the photoelectric detector used for fiber optic gyroscopes. A signal generator produces sinusoidal signals and adds the signal to a light intensity modulator to carry out sinusoidal modulation on the optical power of the optical signal from the fiber source in order to produce an optical signal with sinusoidal components. The measured photodetector converts the modulated optical signal into an electrical signal and samples the electric signal by means of high-speed data acquisition card, then conducts narrowband filter and signal processing over the collected samples and calculates the corresponding frequency response. The frequency sequence pre-selected by a numerical control system changes the frequency at which the sine wave generator (NC) system sends out signals , tests a series of frequency point responses, which can be combined into an amplitude frequency response curve of the measured photodetector, and the curve is transmitted to the terminal computer for displaying and storage. By controlling all the test processes by numerical control system, the utility model has the advantages of automatic measurement, fast testing speed, high testing precision, and therefore is suitable for carefully weighing the photodetector frequency performance in the whole operating frequency range.

The invention discloses a comparative measurement method-based multi-parameter vision measurement system of an inner ring of a bearing. The multi-parameter vision measurement system comprises a swing-rod barrier feeding mechanism, an axial parameter measurement apparatus, a radial parameter measurement apparatus, a conveying mechanism, a separation mechanism, a PLC control module, an upper computer control module and a man-machine interaction module. According to the measurement system, with utilization of a standard and high-precision inner ring of a bearing as a reference component as well as a camera as a comparative measurement instrument, a measured outer ring of a bearing is compared with the reference component so as to carry out separation of a qualified product, a reprocessed product and a scraped product based on calculation of a localization error of the outer ring of the bearing. Therefore, not only can automatic comparative measurement of the inner hole diameter of the inner ring of the bearing, the outer diameter, the diameter of a groove, a curvature radius of the groove and the width be realized, but also a bottleneck problem that the system cost is too high due to a requirement of a high resolution ratio of a camera during the high precision detection and large-size detection of the inner ring of the bearing can be solved.

This invention relates to coal glue layer total automatic measurement device, which comprises computer, input and output data card, automatic heating temperature control part, smoke volume measurement, probe upper and down drive structures, probe rotation part and pressure automatic measurement, wherein, its uses volume measurement part to judge coal sample volume at peak or trough and to start probe drive structure for coal layer measurement through line step motor impulse sequence to determine coal layer upper and down layer position then uses OLS to match upper and down list layer change curve to get maximum thickness values.

The invention discloses an alternating current and direct current voltage true virtual value measurement method capable of automatically identifying the type of a signal. The method comprises the following steps that a measured alternating current and direct current signal is input to the input end of a voltage dividing buffer (1), and a low-impedance signal is output to a level translation circuit (2) and a zero-crossing synchronization circuit (4) after impedance conversion; an analogue signal output by the level translation circuit (2) enters the analogue input end of an A/D (analogue/digital) converter (3), and a digital signal obtained by conversion is transmitted into a microprocessor (5); the reference voltage output of the A/D converter (5) is connected to the reference voltage input end of the level translation circuit (2) for the determination of a new reference level point after the rising of reference zero level; the microprocessor (5) detects a synchronization pulse output by the zero-crossing synchronization circuit (4) through built-in measurement control software; a measurement result is output through a display interface and a communication interface. According to the method, alternating current, direct current and hybrid alternating current and direct current types are automatically identified, and an alternating current voltage true virtual value, a direct current voltage value and a hybrid alternating current and direct current true virtual value are automatically measured.

The present invention relates to a radial runout measuring device for a straightening machine long axis workpiece, and belongs to the field of straightening machine manufacturing. According to the device, a left top tip and a right top tip are arranged on a work platform; the work platform forms a slidable connection with a work table; a motor forms a rotary connection with the left top tip; a photoelectric encoder and the right top tip are fixedly connected; and a tappet type displacement measuring device 1, a tappet type displacement measuring device 2 and a tappet type displacement measuring device 3 are respectively and fixedly connected with the work table. The method and the device of the present invention have the following advantages that: the full automatic measuring calculations of the whole radial runout and the local radial runout of the long axis workpiece on the straightening machine can be achieved, such that the total length radial runout measurement and the local radial runout measurement of the long axis workpiece can be achieved while the cost can be reduced; the method is simple and universal.

The invention provides a device for automatically measuring the caking index of bituminous coal, comprising the following steps: driving the double-drum to rotate by the main engine; driving the piston in the drum to go forward or backward by two step motors; driving the sieve to vibrate to sieve bituminous coal particles by two step motors and automatically weighing on a digital scale; and displaying the weighing results on the casing of the box body and the main engine of the computer simultaneously and giving corresponding caking index calculation results. Experimenters only need to place bituminous coal used for experiments in the drum, with no need of participating in the subsequent experiment process.

The invention provides a device and a method for measuring viscosity of petroleum. The device comprises a drawing mechanism, a rotating mechanism, a detection mechanism and a control mechanism; the drawing mechanism is an electromagnet; the electromagnet comprises an armature and a reset spring, and is started under the control of the control mechanism; the upper end of the rotating mechanism is connected with the armature; the lower end of the rotating mechanism is arranged in a to-be-measured petroleum body; the middle of the rotating mechanism is provided with a support shaft; the armature is capable of driving the rotating mechanism under the attraction drawing of the electromagnet to rotate along the support shaft; the detection mechanism is used for detecting the rotating angle or/and rotating displacement or/and rotating time of the rotating mechanism; the control mechanism is used for controlling the starting of the drawing mechanism, and calculating the viscosity of the to-be-measured petroleum body according to parameters detected by the detection mechanism. Full-automatic measurement is realized by the device and the method provided by the invention, so the device and the method are high in measurement precision, low in cost, and easy to popularize and apply.

The invention especially relates to a fully-automatic roller sorting machine, belonging to the field of tapered roller detection technology. According to the invention, the upper end of a frame is provided with a roller feeding mechanism; a turning-around mechanism is arranged on the part, below the roller feeding mechanism, of the frame; a detection turntable is arranged on the part, below the turning-around mechanism, of the frame; a detection ring extending outwardly is arranged on the edge of the upper end of the detection turntable; a plurality of detection holes are evenly arranged in the detection ring at an equal interval; the middle position of each detection hole is vertically provided with a material hole which penetrates the whole detection ring; a baffle plate is attached ontothe lower end surface of the detection ring; two ends of one of the detection holes are provided with a group of measuring mechanisms; the parts, corresponding to the material holes, of the baffle plate are provided with gaps extending from exterior to interior; and the parts, out of the gaps, of the frame are provided with blanking plates driven by a rotary cylinder. The fully-automatic roller sorting machine in the invention realizes automatic orientation, turning-around, detection and sorting of rollers, and is high in automation degree and improved measurement precision and the like.

The invention relates to a full automatic coal glial layer index measuring instrument and a detection process and a method of the measuring instrument. The structure of the measuring instrument mainly comprises: a drive device of a stepping motor, a probe of a force-measuring device, a frame, a heating furnace, a height automatic measurement device and a coal cup, etc.; the probe is deep arranged in the coal cup which can generate the glial layer, the coal cup is arranged in the heating furnace; a lever device is arranged at the upper part of the frame, and the height automatic measurement device is arranged outside the lever device; the invention simultaneously uses a set of software for carrying out the automatic measurement; the detection process and the method of the measuring instrument comprise the following steps: a measurement device is connected, meanwhile, the position of the probe is initiated; the heating procedure of the heating furnace is started, the temperature monitoring is simultaneously started and the timing is carried out, then the measurement is carried out according to the provisions of national standards; the full automatic coal glial layer index measuring instrument and the detection process and the method of the measuring instrument can realize the full automatic measurement of the glial layer index, improve the precision and reduce the labor intensity and the human error, thereby being more practicable and having the industrial utilization value.

The invention relates to the field of intelligent measurement and provides a method for measuring the liquid level of liquid in a container. The method includes the following steps that A, two points are selected from the side wall of the container and are the upper measuring point and the lower measuring point respectively, the upper measuring point is higher than the lower measuring point, and pressure intensity sensors are installed to measure the pressure intensity value of the upper measuring point and the pressure intensity value of the lower measuring point respectively ; B, the height between the liquid level and the upper measuring point is calculated through the pressure intensity value of the upper measuring point, the pressure intensity value of the lower measuring point and the vertical distance between the upper measuring point and the lower measuring point, and the calculation formula is shown as h1=P1h2/(P2-P1), wherein P1 is the pressure intensity value of the upper measuring point, P2 is the pressure intensity value of the lower measuring point, h1 is the height between the upper measuring point and the liquid level, and h2 is the vertical distance between the upper measuring point and the lower measuring point. According to the method, the accurate liquid level height can be obtained through calculation by measuring the pressure intensity values of two different heights of liquid in the container, measuring precision is high, errors are small, and measuring errors caused by factors such as temperature and density are effectively avoided.

The invention provides a high water flow testing mode of a non-contact microwave flow meter capable of replacing a traditional buoy. The high water flow testing mode comprises a microwave flow meter, the microwave flow meter transmits a beam of microwave to the water surface through a microwave antenna, the microwave is divided into two parts; one part of electromagnetic wave energy is refracted into water, other small part energy is reflected back by the water surface to be received by the microwave antenna, and Doppler frequency information corresponding to flow velocity is generated through a circular polarization mixer; and depression angle information of a tilt angle sensor measuring instrument is combined, and the flow velocity can be obtained.

The invention discloses an instrument for measuring a startup torque, a swing torque and a slippage force of a constant-velocity universal joint assembly. The instrument comprises an outer spherical-cage swinging shafting, an inner spherical-cage swinging shafting, and an outer spherical-cage rotating shafting and an inner spherical-cage rotating shafting which are arranged on the upper ends of the outer spherical-cage swinging shafting and the inner spherical-cage swinging shafting respectively, wherein an outer spherical-cage swinging motor for driving the outer spherical-cage swinging shafting to rotate is arranged at the lower end of the outer spherical-cage swinging shafting; an angle sensor is arranged on the outer spherical-cage swinging motor; an outer spherical-cage fixing device and an inner spherical-cage fixing device are arranged on the outer spherical-cage rotating shafting and the inner spherical-cage rotating shafting respectively; an assembly rotating motor for driving the outer spherical-cage rotating shafting to rotate is arranged at the other end of the outer spherical-cage rotating shafting; and an assembly torque sensor is arranged between the assembly rotating motor and the outer spherical-cage rotating shafting. By the instrument, the startup torque, swing torque, and slippage force, at a slippage end, of a constant-velocity universal joint assembly can be detected at the same time, the measurement precision is high, the measuring method is advanced and the operation is simple and convenient; and thus, the automatic measurement is achieved and current gap in the field is filled.

The invention relates to a measuring device (10) for determining at least one mechanical property of a workpiece sample (100), which comprises at least one image capturing unit (12) for optically determining a workpiece geometry of the workpiece sample (100), and at least one mechanical inspection head (13) for making an indentation (101) in the workpiece sample (100). According to the invention,at least the image capturing unit (12) and the mechanical inspection head (13) form a structural unit (B) together.

The present invention provides a device and method for automatic determination of a white balance adjustment resistor of a LED display screen. The device provided by the invention comprises a brightness and color measurement device, a control and calculation assembly, and a resistance regulation device arranged between a full-color display module and the control and calculation assembly; the brightness and color measurement device is a programmable general luminosity and color measurement instrument which is a brightness and color measurement module being capable of communicating with the control and calculation assembly, and the programmable general luminosity and color measurement instrument is connected with the illumination photometer, the brightness colorimeter and the spectrometer of a communication module being capable of communicating with the control and calculation assembly and is connected with one of communication modules, through employing a luminosity sensor and a set of XYZ spectrum response coupling optical filters, capable of communicating with an electrical parameter measurement module and the control and calculation assembly; and the control and calculation assembly and the upper computer software of a display screen control system communicate through a protocol instruction. The device and method for automatic determination of a white balance adjustment resistor of a LED display screen is able to realize the automatic measurement of a white balance resistance value, is simple, fast, reliable and visual; and moreover, the resistance value of the resistance regulation device may be regularly calibrated and automatically corrected so as to guarantee the accuracy.

The invention belongs to the field of detection, and relates to improvement of a projection enlarged image detection method. An efficient projection enlarged image detection method can be used for detecting a projection enlarged image, quick measuring of the projection enlarged image is achieved, a visualization detection data processing mode is formed, efficiency, the automation degree and the intelligence degree of a detection device are improved, complexity and mistakes during measuring and calculation processes in the prior art are reduced, data accuracy is improved, detection efficiency and detection accuracy are improved, and the first-class level of the industry is reached.

The invention discloses a ballastless track settlement monitoring device. The ballastless track settlement monitoring device comprises guide rails, a fixing plate fixedly mounted at the front ends of the guide rails, a main plate fixedly mounted in the middles of the guide rails, and a mirror bracket movably mounted at the back ends of the guide rails and being capable of sliding along the axes of the guide rails, wherein a photodetector is arranged on the fixing plate; a laser, a light splitter and a first reflector are arranged on the main plate; a second reflector is arranged on the mirror bracket; the laser, the light splitter, the first reflector, the second reflector and the photodetector form a michelson interferometer; the mirror bracket is connected with a flanged settlement plate through a connecting post. The ballastless track settlement monitoring device measures settlement of a ballastless track in real time through the michelson interferometer, can measure micro-sized or even nano-sized settlement distance, and achieves the purposes of accurately perceiving settlement and monitoring the settlement amount.

The invention relates to a tester for an anionic surfactant in water. The tester comprises a shell and a bottom plate positioned at the bottom of the shell, a turntable system is arranged on the bottom plate, a rotary tray for placing a plurality of sample cups is arranged on the turntable system, a mechanical arm capable of moving up and down is arranged above the rotary tray, and the mechanicalarm is provided with a liquid pumping pipe for pumping extracted chloroform extraction liquid and an injection cleaning pipe for injecting pure water to clean the sample cups. Full-automatic measurement of an anionic surfactant in the sample is achieved, the water sample extraction stability is guaranteed, organic reagents are completely and automatically added and waste liquid is collected in theextraction process, experimenters do not need to make contact with toxic organic reagents at all, the humanized design is met, the working efficiency of the experimenters is improved, and manpower iseffectively saved.

The invention discloses an intelligent phosphate concentration online analysis recorder based on a wireless network, which includes a plurality of phosphate concentration measurement terminal nodes and an intelligent monitoring terminal communicating with the phosphate concentration measurement terminal nodes, capable of simultaneously monitoring multiple Centralized online monitoring of sample water. Phosphate concentration measurement terminal node In the process of measuring the phosphate concentration of the sample water, the standard solution, the reagents contained in the first reagent bottle and the second reagent bottle are realized by programming the single-chip controller of the phosphate concentration measurement terminal node. Carrying out software liquid level calibration reduces the cost of liquid level detection and eliminates misoperations caused by failure of liquid level detection devices. The intelligent monitoring terminal not only realizes the functions of automatic measurement, automatic calibration, large-capacity data storage, touch screen control, Chinese and English menu selection, but also provides serial communication interface and Ethernet interface, which can realize remote monitoring and online release of measurement information.

The invention belongs to the field of turbine blade cooling design, and relates to a turbine blade coating thickness optical scanning holographic measurement method, when the coating thickness of a blade is measured, the blade sprayed with a coating is firstly installed on an optical scanning device through an optical scanning technology, the blade is comprehensively scanned through the optical scanning device, and three-dimensional parameters are recorded; forming a first model; the blade is taken down and then subjected to coating spraying, the blade subjected to coating spraying is installed on the optical scanning device again to be subjected to comprehensive scanning, three-dimensional parameters are recorded, a second model is formed, the first model and the second model are imported into the same software to be compared and analyzed, and a coating three-dimensional model is obtained; and the thickness of each position of the coating can be accurately and quickly obtained. The device is simple in structure, convenient to operate, high in measurement precision and capable of effectively avoiding the problem that the thermal barrier coating is damaged in the measurement process, meanwhile, full-automatic measurement can be achieved, and the quality stability and consistency of the thermal barrier coating are guaranteed.