47results about How to "Calibration is easy" patented technology

The invention relates to a wind driven generator tower cylinder, in particular relates to a splicing flange leveling device of a wind driven generator tower cylinder. The splicing flange leveling device comprises a stand (1), a hydraulic jack (6) and at least two supporting members (2). A splicing flange (4) is positioned among the hydraulic jack (6) and the supporting members (2). The stand (1) comprises an upright post (101), an upper crossbeam (102) and a lower crossbeam (103), and the upper crossbeam (102) and the lower crossbeam (103) are both fixedly connected with the upright post (101). The supporting members (2) are positioned on the lower crossbeam (103) and positioned at both sides of an axis (3) of the splicing flange leveling device. The hydraulic jack (6) is positioned between the splicing flange (4) and the upper crossbeam (102). With the adoption of the splicing flange leveling device, the structure is simple, the leveling operation is convenient, the leveling effect is good, and the quality of a leveled splicing flange is ensured.

The invention relates to a method for obtaining liquid level data from a capacitance level transducer. The method includes the following steps of measuring the capacitance values, including the first capacitance value and the second capacitance value, of the liquid level sensor put in to-be-measured liquid, judging whether the obtained first capacitance value is larger than a set first threshold or not, if yes, executing the next step, if not, comparing a current full-level capacitance value with the obtained second capacitance value and calculating the current liquid level value of the liquid, and comparing the obtained second capacitance value as the current full-level capacitance value with the sum of the first capacitance value and the second capacitance value to obtain the calibrated current liquid level value. The invention further relates to a device for implementing the method. The method and device have the advantages that the measurement accuracy is high and correction operation is simple.

The invention discloses a correction device and method of an optical plummet of a Leica base. The device comprises a triangular base matched with an installation base platform and a base connector which is arranged on the triangular base in an inverted manner and is used for correcting the Leica base in an assisting and cooperative manner, wherein the triangular base is connected with the base connector through a connecting piece, and the Leica base is arranged at one end, far away from the triangular base, of the base connector in an inverted manner; the method comprises the following steps of firstly, installing a correction device of a Leica base optical plummet; secondly, setting a correction point; thirdly, adjusting a reticule of the optical plummet of the Leica base to coincide withthe reticule of a cross correction point on an auxiliary object; and fourthly, rotating the Leica base by 180 degrees, and observing whether the two reticules are overlapped again. The triangular base and the base connector are connected by manufacturing the connecting piece for connecting the same, and a rotatable function of the base connector is used for driving the non-rotatable Leica base with the optical plummet to rotate, thereby facilitating the correction of the Leica base without being limited by the environment.

The invention discloses a GNSS navigation satellite-based self-maintenance clock publishing system comprising at least a GNSS signal receiving and processing module and at least an energy autonomy module, wherein the GNSS signal receiving and processing module is used for receiving satellite signals and obtaining position information and Greenwich Mean Time, relation between local time and Greenwich Mean Time is determined according to the position information and therefore standard time is automatically corrected, and the energy autonomy module is connected with the GNSS signal receiving and processing module and is used for realizing power source supply of the system. The GNSS navigation satellite-based self-maintenance clock publishing system is characterized in that a GNSS navigation satellite-based self-maintenance and self-synchronization information publishing screen clock is realized; the system is advantaged by simple structure, low manufacture and maintenance cost, and suitability for large scale popularization.

The embodiment of the invention belongs to the technical field of numerical control machining centers, and relates to a calibration method for a rotating shaft of a numerical control machine tool. The method comprises the following steps that rotating radius calibration is carried out on an A shaft by measuring and comparing the distance from a tool nose of a tool to a first vertical plate; rotation radius calibration is carried out on C shaft by measuring and comparing the distance from the same side edge of each first square frame to a position located on one side edge of each second square frame cut on a horizontal plate; and zero position calibration is carried out on the A shaft and/or the C shaft by measuring and comparing the distance between the close edges of a third square frame and a fourth square frame cut on a second vertical plate. The embodiment of the invention further provides a numerical control machining device, equipment and a storage medium. According to the embodiment of the invention, the positions between the A shaft and the C shaft and the plates are changed by rotating the A shaft and the C shaft, the distances between the plates at different positions are measured, or the distances between the plates at different positions after cutting are measured, rotation radius calibration and zero position calibration are carried out on the A shaft and the C shaft, the calibration operation in the whole process is simple, the method is efficient and novel, and the precision is relatively high.

The invention relates to the technical field of mechanical equipment, and discloses multi-cylinder hydraulic correction equipment which comprises a correction box, and a first correction set, a second correction set, a third correction set and a fourth correction set are sequentially arranged above the correction box in the horizontal direction of an overlooking face. First hydraulic cylinders used for position transmission are arranged below the first correction set and the third correction set and above the second correction set and the fourth correction set, the first correction set, the second correction set and the third correction set are arranged at intervals, and the first correction set corresponds to the fourth correction set in position. According to the correcting device, the four correcting sets are arranged at intervals, the upper correcting set and the lower correcting set are matched with each other, and the adjusted position of the workpiece is changed through the forward driving force of the driving roller on the workpiece, so that the workpiece is conveniently corrected in the running process, and the applicability of the correcting device is improved.

The invention discloses a high precision low maintenance pH meter, which includes a shell, a wiring terminal structure and components as well as a signal acquisition and processing system. The wiring terminal structure includes a signal terminal board and a signal terminal, the signal terminal board and the components are located in the shell, the wiring end of the signal terminal is located outside the shell, the front of the shell is provided with a hanger, and the front side of the signal terminal board is equipped with a signal shielding aluminum cover. The high precision low maintenance pH meter provided by the invention not only can protect components and the circuit from external liquid and gas corrosion, but also has the characteristics of convenient production and processing, low making cost, convenient installation and wiring, good heat dissipation effect, good mechanical stability, and wide application range, can "see" the measurement balance point of a sensor very visually, can judge the sensor performance visually, reduce the requirement for the professional skills of users, and improve the correction accuracy and measurement accuracy, lower the probability of incorrect use of a correction solution during correction, and especially can achieve better effect under an outdoor measurement condition and in high precision requirement measurement fields.