7results about How to "Realize continuous measurement" patented technology

A composite on-site flow meter calibration method is disclosed. This method allows for measurement of individual instruments using standard instruments, and can switch between standard instruments and volumetric measuring devices for simultaneous measurement, as well as between standard instruments and gravimetric measuring devices for simultaneous measurement. Therefore, it enables free switching between various measuring devices for comparison of measurement values, solving the problem of large measurement errors caused by single measurement methods and greatly improving the accuracy of instrument calibration. Furthermore, the instrument clamping device in this calibration method can simultaneously clamp multiple instruments in series for measurement, resulting in high efficiency and allowing for easy adjustment of the clamping quantity as needed, demonstrating strong adaptability. The gravimetric measuring device in this calibration method can accommodate the efficient alternation of two weighing devices while ensuring a relatively stable liquid level in the oil tank, which is beneficial for flow stability during the weighing process.

The invention belongs to the technical field of gas detection, and particularly relates to a gas concentration measurement method and system based on adaptive wavelength. The measurement method comprises the following steps: obtaining a waveform curve of a to-be-measured gas absorption signal; if the current waveform curve is distorted, the to-be-detected gas is scanned again after the current scanning interval is widened until the newest waveform curve is not distorted, and the newest waveform curve is subjected to convolution processing to obtain a second reasonable curve; and if K3 continuous sampling points greater than a third set threshold exist in the absorption interval of the second reasonable curve, recording the current second reasonable curve as a third reasonable curve, and calculating the current concentration of the gas to be detected according to the third reasonable curve, on the contrary, the scanning interval corresponding to the current second reasonable curve is narrowed, and then the to-be-detected gas is scanned again. According to the invention, high-efficiency and accurate concentration measurement can be carried out on to-be-measured gases with different concentrations.

The present application relates to the technical fields of nuclear fusion cold screen tube plate gap measurement, and discloses a nuclear fusion cold screen tube plate gap measurement device, which comprises a measurement mechanism, the measurement mechanism comprises a mounting frame, a light emitting part, a light receiving part and two rollers, a cold screen tube assembly space is formed between the two rollers, the two rollers are rotatably arranged on the mounting frame, and the light emitting part and the light receiving part are arranged on the end faces of the two rollers facing each other; a controller is in communication connection with the light emitting part and the light receiving part, and the controller is configured to determine the gap between the cold screen tube and the cold screen plate according to the light information received by the light receiving part. By arranging the nuclear fusion cold screen tube plate gap measurement device, the risk of surface damage of the cold screen tube caused by direct contact between the nuclear fusion cold screen tube plate gap measurement device and the cold screen tube is reduced, the measurement accuracy is improved, and the continuous measurement of the gap between the cold screen tube and the cold screen plate by the nuclear fusion cold screen tube plate gap measurement device is realized.

The application discloses an on-line monitoring device and method for dissolved gas in transformer oil based on infrared spectrum, which comprises a transformer oil gas separation part, an infrared spectrum gas detection part and a data processing part. The method comprises the following steps: firstly, carrying out oil gas separation; then, sending the obtained dissolved gas in oil into a gas chamber and scanning the gas chamber by using an infrared spectrometer to obtain a spectrum diagram; and finally, obtaining the content of various target gases in oil by using a gas quantitative analysis model. The application uses infrared spectrum method as the gas detection part, has the advantages of fast spectrum data acquisition, no consumption of gas samples, wide detection range, high stability, maintenance-free, long-term operation monitoring cost, etc. compared with the most widely used gas chromatography method for on-line monitoring of gases in transformer oil. The device adopts a structure based on single-chamber vacuum degassing, solves the problem of spectrum baseline offset distortion, and does not need to consume nitrogen as background, thereby improving the automation degree of the device.

The invention belongs to the technical field of marine geotechnical engineering, and relates to a spiral driving type self-installation dynamic penetrometer and an operation method thereof. The dynamic penetrometer comprises a probe, a middle shaft, an empennage and a spiral driving system. And a spiral sheet in the spiral driving system is driven by a motor to rotate to generate axial propulsive force, so that continuous penetration of the dynamic penetrometer into seabed soil is realized. The dynamic penetrometer is further provided with an anti-torsion wing plate, the anti-torsion wing plate provides lateral soil counterforce in the penetration process, overall rotation of the dynamic penetrometer is effectively restrained, and therefore the stability of the penetration process is guaranteed. The defects that a traditional dynamic penetrometer cannot conduct continuous penetration testing and is limited in depth are overcome, continuous and controllable penetration and testing of any target depth in seabed soil are achieved under the condition that the overall weight is almost not increased, no special requirements for exploration ships and sea conditions exist, and the method is suitable for large-scale popularization and application. And the applicability and engineering application capability of the dynamic penetrometer in deepwater and complex seabed environments are remarkably improved.

The utility model relates to the technical field of crane speed detection, in particular to a crane trolley and trolley speed detection device, which comprises a measuring host and a base, the measuring host is fixed above the base, and a battery, a motor driving module and a motor are arranged in the base. A laser ranging module and a high-precision inclination angle sensing module are integrated in the measuring host, a driving shaft of the motor is mechanically connected with a rotating part of the measuring host, the battery is electrically connected with the motor driving module, and the motor driving module is electrically connected with the motor. The problems that in the prior art, measurement equipment is complex in installation, high-altitude operation is needed, measurement precision is limited, manual intervention is much, and efficiency is low are effectively solved, and a safer, more efficient and more convenient crane trolley and trolley speed detection scheme is provided.

The application discloses a casing coupling close distance detection device, which comprises an equipment base, a coupling feeding and discharging mechanism is fixedly connected to the surface of the equipment base, a coupling conveying mechanism is also fixedly connected to the surface of the equipment base, the coupling conveying mechanism is arranged below the coupling feeding and discharging mechanism, a shell is also fixedly connected to the surface of the equipment base, a coupling clamping and rotating mechanism and a close distance detection mechanism are connected to the shell, the close distance detection mechanism is arranged close to the coupling clamping and rotating mechanism, the coupling conveying mechanism passes through the shell, a three-axis moving mechanism is fixedly connected to the surface of the equipment base, a centering detection mechanism and a plug gauge screwing mechanism which are arranged side by side are connected to the three-axis moving mechanism, and a torque monitoring mechanism is connected to the plug gauge screwing mechanism. The application realizes the detection of the close distance of the casing coupling, realizes the torque control in the measuring process, realizes the measurement of the borehole diameter of the coupling and the determination of the original point of the coupling through the centering detection, and avoids the thread damage caused by the wrong buckling in the detection process.