56results about How to "Avoid affecting measurement accuracy" patented technology

The invention relates to the technical field of liquid level meters, in particular to a liquid level measuring instrument for a low-temperature and high-pressure container, and aims to solve the problem that when the liquid level of the low-temperature and high-pressure container is measured, measured data are easy to be wrong due to the influence of the pressure and temperature of a medium. Comprising a pressure measuring container; the liquid level meter comprises a gas phase pipe, a liquid phase pipe and a differential pressure transmitter, and one end of the gas phase pipe and one end of the liquid phase pipe are both communicated with the pressure measuring container; a gas-liquid drainage assembly; the differential pressure transmitter is used for measuring the liquid level in the pressure measuring container through the pressure of gas or liquid in the gas phase pipe and the liquid phase pipe, and the gas-liquid drainage assembly is used for separating gas and liquid in the gas phase pipe or the liquid phase pipe. The gas in the low-temperature and high-pressure container enters the gas phase pipe, the liquid in the low-temperature and high-pressure container enters the liquid phase pipe, the gas-liquid drainage assembly can treat media at the gas phase pipe and the liquid phase pipe respectively, and the problem that the media directly enter the gas phase pipe or the liquid phase pipe, and measurement data are unstable due to factors such as pressure fluctuation is solved.

The invention belongs to the field of encoder mounting structures of torque motors, and particularly relates to a locking device for a high-precision magnetoelectric encoder based on an alternating-current permanent magnet torque motor, which is applied to the alternating-current permanent magnet torque motor, the alternating-current permanent magnet torque motor comprises a motor shaft and a motor shell, and an encoder is fixed on the motor shell. The locking device comprises a locking shaft sleeve and a rotary locking assembly, and the locking shaft sleeve is in threaded connection with the end of the motor shaft; the rotary locking assembly comprises a limiting bolt in sliding connection with the locking shaft sleeve through a limiting chute, an embedded pin with a trapezoidal cross section, and a chute which is arranged between the encoder rotor shaft sleeve and the motor shaft and is matched with the embedded pin in shape; on the premise that the aim of locking is achieved through inclined plane contact, sliding of the limiting bolt in the limiting sliding groove is achieved by rotating the locking shaft sleeve, the action that the embedded pin is obliquely inserted into the inclined groove is achieved through the radial displacement amount of the starting end and the tail end in the limiting sliding groove, and convenience of disassembly and assembly of the encoder and the motor shaft is achieved.

The invention discloses an LNG (Liquefied Natural Gas) ship rudder horn subsection assembly positioning method, which comprises the following steps of: butting a middle subsection and a rudder horn subsection on a jig frame, then adjusting the rudder horn subsection from front, back, left and right directions, placing a concentricity measuring device right below a lower rudder hole after the rudder horn subsection is adjusted in place, hanging a conical plumb bob at the center of an upper rudder hole by utilizing a steel wire rope, and finally measuring the concentricity of the rudder horn subsection. Adjusting the height of an outer opening of a non-butt-joint part of the rudder horn section, and measuring the distance from the steel wire rope to the inner wall of the lower rudder hole by using a right-angle measuring ruler on the concentricity measuring device in the process, so as to ensure the vertical coplanarity of the circle center of the upper rudder hole and the circle center of the lower rudder hole; the concentricity measuring device can ensure that the conical plumb bob is always in a static state, so that the influence on the measuring precision caused by the movement of the conical plumb bob due to external interference in the measuring process can be avoided, the accuracy of measured data is ensured, and the positioning precision of rudder horn sections and the positioning precision of a rudder system are further ensured.

The invention discloses a flow velocity measuring device based on magnetic suspension, and belongs to the technical field of fluid flow velocity measurement, the flow velocity measuring device comprises a mounting cylinder, the side surface of the mounting cylinder is provided with a magnetic suspension flow velocity measuring instrument, the interior of the magnetic suspension flow velocity measuring instrument is rotatably connected with a rotating shaft, and the side inner wall of the mounting cylinder is fixedly connected with a guide plate. The interior of the guide plate is movably connected with a guide rod, and one end of the guide rod is fixedly connected with a mounting plate. A first blocking frame in the first mounting flange and a second blocking frame in the second mounting flange are matched with two filter screens symmetrically arranged in the mounting cylinder, impurities of fluid in a pipeline can be intercepted and filtered, and the situation that the impurities make direct contact with a rotating impeller and are wound around the rotating impeller can be avoided; and the dredging rod, the round rod and the round ball can dredge the first blocking frame and the filter screen, so that the fluid passes through the first blocking frame and the filter screen.

The invention relates to the technical field of centralizers, in particular to a logging-while-drilling tool anti-disengaging damping centralizing device and a using method, the logging-while-drilling tool anti-disengaging damping centralizing device comprises at least two centralizing damping short sections, and each centralizing damping short section comprises an outer sleeve, a centralizing damping part and a fastening adjusting part. The fishing device is reasonable and compact in structure and convenient to use, the logging-while-drilling instrument string can be fixedly installed in the middle of the inner side of the centralizing and damping short section through the centralizing and damping part, the fastening and adjusting part and the stop part, and when underground complexity and drilling tool jamming occur, the fishing device and the upper end of the logging-while-drilling instrument string are clamped and fixed together, and the centralizing and damping short section is fixed to the centralizing and damping short section. When a well logging while drilling instrument string is fished out of a well, the well logging while drilling instrument string can be separated from the centralizing and damping part by dragging the fisher upwards, penetrates through the inner side of a small water hole of the accident handling tool upwards and is fished out of the well quickly, and then underground complex and drill jamming accidents are handled through the accident handling tool, so that the fishing operation efficiency of the well logging while drilling instrument string is effectively improved; and the logging while drilling instrument string is prevented from being buried underground to cause heavy property loss.

The invention relates to the technical field of geological surveying and mapping, and discloses a surveying and mapping ruler for geological surveying and mapping and a using method thereof.The surveying and mapping ruler comprises a shell, a driving rod is rotationally connected to the inner wall of the shell, and a flexible ruler is fixedly wound around the outer wall of the driving rod. In the rotating process of the collecting wheel, the collecting wheel drives a sliding rail to move up and down along the inner wall of a sliding support through a rolling wheel, when the collecting wheel rotates downwards, an N-shaped rod drives a blocking block to block an air outlet through hole, a piston plate forms a sealing plate, and the sealing plate moves downwards along the inner wall of an air pressure cylinder; the air at the bottom of the piston plate is forced to enter the air pressure box through the one-way air outlet valve, and the air in the air pressure box enters the expansion pipe through the air outlet, so that the expansion pipe expands, and the expanded expansion pipe plays a role in supporting the extending flexible rule to reduce the error of measured data of the flexible rule under the influence of air flow.

The utility model discloses a protective overlay measuring device, and relates to the technical field of semiconductor manufacturing. The device comprises a measuring table. According to the utility model, after the driving mechanism drives the threaded sleeve to drive the central column to continuously descend and displace, the transverse rod penetrating through the interior of the central column drives the transverse sleeve to displace together with the measuring assembly; when the tip cone rod is driven to descend and move together to be in contact with the limiting assembly, the tip cone rod is pushed by the limiting assembly to slide laterally to be separated from the transverse sleeve so as to release the limitation on the transverse sleeve, so that the measuring assembly can be driven to descend to be close to the upper part of the wafer to be measured and the position of the wafer to be measured is limited. The position of the measuring assembly is limited through the arrangement of the limiting assembly and the cooperation of the tip cone rod, so that the distance between the bottom of the measuring assembly and the upper portion of the to-be-measured wafer can be controlled, and the situation that the bottom of the measuring assembly makes contact with the surface of the wafer, friction damage is caused, the measuring precision is affected, and the quality of the wafer is damaged is prevented.

The utility model relates to the technical field of land survey point fixing devices, in particular to a portable land survey point fixing device. Comprising a sleeve, a pushing and pressing cylinder is sleeved with the sleeve in a matched mode, a handle is arranged at the top of a pushing and pressing cylinder body, a locking mechanism is arranged at the bottom of the pushing and pressing cylinder body, and a locking plate and a movable top plate in the locking mechanism jointly move to lock or loosen a positioning marker post; the point fixing device is light in weight and low in cost, operation can be completed by one person, and convenience is greatly improved.

The utility model relates to a Z-axis outer cover of a three-coordinate measuring machine and the three-coordinate measuring machine, and the Z-axis outer cover comprises a left fixed side cover which is detachably installed at the left side of a carriage at the lower part of a Z-axis structure; a right fixed side cover detachably mounted to the right side of the carriage; the left mounting side cover is detachably mounted on the left side, away from the Z axis, of the left fixed side cover; the right mounting side cover is detachably mounted on the right side, away from the Z axis, of the right fixed side cover; the front cover is located on the front side of the Z-axis structure, and the lower end of the front cover is detachably installed on the left fixed side cover and the right fixed side cover; the rear cover is arranged opposite to the front cover, and the lower end of the rear cover is detachably mounted to the left fixed side cover and the right fixed side cover; and the hanging part is installed at the top end of the Z-axis structure upper balance support, and the top ends of the front cover and the rear cover are hung on the hanging part. The Z-axis outer cover is designed in a split mode, and the disassembly difficulty is reduced.

The utility model provides a kind of high-precision ultrasonic sound field testing device, it includes water tank, ultrasonic sound field generator, composite piezoelectric ceramic sensor, data acquisition card, signal source and amplifier and processing module.Ultrasonic sound field generator and composite piezoelectric ceramic sensor are both set in the water tank with water, and the latter is below the former.Composite piezoelectric ceramic sensor includes receiving surface, receiving surface is obliquely arranged, and a plurality of single piezoelectric ceramics are arranged on receiving surface, and a plurality of single piezoelectric ceramics are arranged in matrix, single piezoelectric ceramic receives ultrasonic wave emitted by ultrasonic sound field generator, and ultrasonic wave is reflected to the tank wall of water tank.Data acquisition card is electrically connected to composite piezoelectric ceramic sensor.Signal source and amplifier are electrically connected to ultrasonic sound field generator.Processing module is electrically connected to signal source and amplifier and data acquisition card.The high-precision ultrasonic sound field testing device of the utility model, receiving surface is obliquely arranged, and measurement accuracy and measurement accuracy can be improved.

The invention relates to the technical field of detection devices, in particular to an optical fiber detection device which comprises a case, a mounting plate is connected in the case through a cushion block, a power supply and a detector are arranged on the mounting plate, an optical fiber disc is further arranged on the mounting plate, and a light source is arranged on one side of the optical fiber disc; a supporting plate is connected to the mounting plate through a nut column, an industrial personal computer is arranged on the supporting plate, and a data acquisition card and a photoelectric switch are further arranged on the supporting plate; a temperature control assembly is arranged in the case, required light is provided for optical fibers of the optical fiber disc through the light source, detection is carried out through the detector, the temperature in the case is controlled through the temperature control assembly, and the situation that the measurement precision and the service life of the detection device are affected due to the fact that the temperature in the case is too high is prevented. The exhaust fan is arranged to be matched with the exhaust port to exhaust hot air in the case, and the scattering fan is matched with the air inlet to suck external air, so that the temperature in the case is reduced.

The utility model discloses a continuous casting slab longitudinal cutting laser alignment rechecking device, which relates to the technical field of continuous casting slab production and comprises a stand column, a mounting seat fixedly arranged at the upper end of the stand column, a rotating seat rotatably arranged on the mounting seat, a sliding seat slidably arranged on the rotating seat, a cross beam fixedly arranged on the sliding seat and two sliding tables slidably arranged on the cross beam. Each sliding table is provided with a laser assembly, two beams of parallel rays can be irradiated on the slab through the two laser assemblies, workers do not need to get close to the slab for manual measurement, and therefore the measurement accuracy is greatly improved. The situation that due to high temperature, the ruler expands and becomes long, and consequently measurement precision is affected is avoided, meanwhile, the accuracy of length measuring and sizing can be rechecked, rays can rotate with the installation base as the circle center through the rotating base, and therefore the irradiation direction of the laser rays is adjusted, and the transverse positions of two laser beams can be adjusted at the same time through the sliding base. The distance between the two laser beams can be adjusted through the sliding table.

The invention relates to an automatic tool wear detection device, comprising a spindle box, a working platform and a detection component; the output end of the spindle box is connected with a tool, the spindle box can drive the tool to move in the X, Y and Z directions, and the spindle box can also drive the tool to rotate; the working platform is arranged below the spindle box; the detection component is used to measure the position of the tool in the X, Y and Z directions; the detection component comprises a tool setting sensor, and the tool setting sensor comprises an X-direction tool setting surface, a Y-direction tool setting surface and a Z-direction tool setting surface; the invention drives the tool to contact the X-direction tool setting surface, the Y-direction tool setting surface and the Z-direction tool setting surface of the tool setting sensor respectively through the spindle box, calculates the displacement difference of the spindle box in the X, Y and Z directions during the initial tool setting and the actual detection, and then obtains the tool wear amount; the machining center performs real-time detection of the tool according to the tool wear amount, and the detection can be performed without removing the tool, thereby greatly improving the detection efficiency and detection accuracy and reducing the work intensity of workers.

The utility model discloses a thickness measuring device for bipolar plate production, which comprises a measuring column, a sliding block and a measuring plate, the sliding block is slidably connected to the surface of the measuring column, the measuring plate is fixedly connected to the front side of the surface of the sliding block, the bottom of the measuring column is fixedly connected with a measuring mechanism, and the measuring mechanism comprises a reference platform. And the reference platform is fixedly mounted at the bottom of the measuring column. According to the utility model, the distance measuring sensor is used for automatically detecting the distance and transmitting data to the control panel, so that the intelligentization of the thickness measurement of the bipolar plate is realized, the workload of operators is greatly reduced, and when a large number of bipolar plate measurement tasks are performed, the measurement efficiency can be obviously improved, and the time and energy are saved; and meanwhile, the arrangement of the reference platform can ensure the flatness of the bipolar plate when the bipolar plate is placed, so that the problem that in the practical application process of the patent equipment, an operator needs to manually rotate the rotating block so as to push the threaded rod to fix the measuring block, and the operation process is relatively complicated is solved.

The invention discloses a reconnaissance instrument for measuring the soil bearing capacity of a building site. The reconnaissance instrument comprises a main body supporting mechanism, an exploration sub-packaging mechanism connected to the main body supporting mechanism and a driving hammering mechanism. The main body supporting mechanism comprises a main body supporting ring and a main body supporting column which are coaxially and fixedly connected; the exploration sub-packaging mechanism comprises a probe sub-packaging mechanism arranged on the inner side of the main body supporting ring and a probe rod sub-packaging mechanism connected to the main body supporting column; the probe sub-packaging mechanism comprises a probe sub-packaging supporting ring rotationally connected to the inner side of the main body supporting ring, and a plurality of vertically-through probe sub-packaging containing holes are formed in the probe sub-packaging supporting ring; a bearing measuring probe is fixedly clamped in the probe sub-packaging accommodating hole; according to the invention, multiple testing functions are integrated, a static load test, a dynamic penetration test, a standard penetration test and the like can be carried out, and the soil bearing capacity can be evaluated from multiple angles through different testing methods without frequently replacing instruments in the investigation process of the same site.

The application discloses a fiber type horizontal angle indicating device based on a self-collimation principle and a method thereof, and relates to the technical field of horizontal angle indication.The device comprises a light source, a fiber weight module, a light intensity receiving module and a frame.The light source emits a space light which is coupled into the fiber weight module.The fiber weight module converts the direction of the incident light into a vertical downward direction and emits the light to a measured object.The measured object reversely couples the incident light into the fiber weight module.The fiber weight module emits the incident light to the light intensity receiving module.The light intensity receiving module converts the incident light into an electric signal.The frame is used for suspending the fiber weight module.The application is suitable for the installation and debugging process of high-end manufacturing equipment, measuring instruments and scientific test equipment, and provides high-sensitivity horizontal angle indication for the adjustment requirement of the spatial posture of a sensitive element and the high-precision level of the ground.

This utility model discloses a novel column-type sensor, including a base plate and a sensor body. A balancing base is mounted on the top of the base plate, and the sensor body is mounted on the balancing base. A sensor sealing shell is mounted on the outer side of the middle part of the sensor body, and a protective outer cover is mounted on the outer side of the base plate. The protective outer cover has multiple through holes evenly spaced at the base plate. This utility model provides a double barrier between the sensor sealing shell and the protective outer cover, effectively preventing dust from entering the sensor and affecting measurement accuracy. The multiple through holes evenly spaced at the base plate allow for the dumping of dust without affecting weighing accuracy.

The utility model discloses a feed granularity multistage screening rapid metering device which comprises a box body, a sampling cavity is arranged in the box body, a plurality of groups of screening cavities located in the box body are arranged on one side of the sampling cavity, a screening plate is installed between every two adjacent groups of screening cavities, and the apertures of screening holes in the multiple groups of screening plates are sequentially reduced. The feed screening device has the advantages that the sampling cavity is used for containing feed needing to be detected and screened, the screening cavities and the screening plates are arranged to be matched to effectively and rapidly screen materials in the sampling cavity, and feed particles with different granularities are rapidly screened into the screening cavities; meanwhile, a cover plate and a first sliding groove are arranged to be matched to guarantee the sealing performance of the box body during screening, the box body is arranged to be small in size, the box body is convenient to hold for shaking screening, and the operation convenience is improved; and through cooperation with the metering scale marks, the screened feed in the multiple screening cavities can be rapidly and accurately metered, and the efficiency of screening and metering the feed is effectively improved.

The utility model belongs to the field of differential pressure transmitters, particularly relates to a cylindrical differential pressure transmitter and a pipe orifice connecting structure, and aims to solve the problems that liquid or gas in an existing pipeline contains impurities, the service life of the sensor is shortened when the sensor is in direct contact with the liquid or the gas, and the detection precision of the differential pressure transmitter is influenced after a long time. In order to solve the problems of liquid leakage or gas leakage and poor sealing effect during pipe orifice connection of the differential pressure transmitter, the utility model provides the following scheme: the device comprises a shell, a plug, a circuit board and a sensor are respectively arranged in the shell, both the plug and the sensor are electrically connected with the circuit board, one end of the shell is fixedly communicated with a pipe orifice, and the other end of the shell is fixedly communicated with the pipe orifice. According to the utility model, the nut is continuously tightened, so that the connecting pipe can be driven to move towards one end of the pipe connecting port, the first sealing ring can be extruded, the pipe connecting port and the connecting pipe can be conveniently sealed, gas and water leakage is avoided, and the measurement precision is improved.

The invention relates to the technical field of detection, and provides aluminum alloy B-type cabin intermediate product precision detection equipment which comprises an operation table, a detection mechanism, a dust removal mechanism, a cleaning mechanism and a drying mechanism. The left side of the upper end of the operation table is fixedly connected with the detection mechanism, and the right side of the operation table is fixedly connected with the dust removal mechanism; the right end of the rear side of the operation table is fixedly connected with a cleaning mechanism, the left end of the rear side of the operation table is fixedly connected with a drying mechanism, and arc-shaped T-shaped transverse baffles are evenly distributed at the upper end of the operation table. Through the cooperation of the operation table and the detection mechanism, the precision of automatically and continuously detecting the arc-shaped T-shaped transverse baffle is achieved, the arc-shaped T-shaped transverse baffle needing to be detected only needs to be manually placed at the upper end of the arc-shaped clamping base at the right end of the front side, then the detected arc-shaped T-shaped transverse baffle is taken down from the upper end of the arc-shaped clamping base at the left end of the front side, and the detection efficiency is greatly improved. The difficulty of precision detection is reduced, the detection precision is high, and the efficiency is high.

The invention provides a precision measurement device for swivel bridge construction, and relates to the technical field of swivel bridge measurement, the precision measurement device comprises a measurement connecting piece, and the measurement connecting piece is provided with two synchronous winding pieces; the measurement connecting piece is used for driving the two synchronous winding pieces to rotate at the same time. The two synchronous winding pieces are each provided with an end limiting piece. The two end limiting pieces are used for being installed at the two ends of a swivel bridge correspondingly. The two end limiting pieces are respectively provided with a measuring part, so that a worker can conveniently measure the rotation precision of a rotation bridge at the same time, the rotation precision of the bridge can be comprehensively measured, and the construction safety of the bridge is ensured; the problems that an existing precision measuring device for swivel bridge construction cannot conveniently follow a bridge to automatically measure the butt joint precision of the two ends of the bridge, manual measurement is tedious, and steel bars cannot be conveniently and automatically guided are solved.

The utility model relates to the technical field of instruments and meters, and discloses a water level detection rod accurate measuring device which comprises a shell, the rear side of the shell is fixedly connected with two protective covers, the rear sides of the two protective covers are both slidably connected with first moving rods, the front sides of the first moving rods are rotatably connected with a fixing plate, and the fixing plate is fixedly connected with the shell. The device comprises a fixed plate, movable plates are fixedly connected to the upper side and the lower side of the fixed plate, first springs are fixedly connected to the front sides of the two movable plates, second fixed plates are fixedly connected to the front sides of the two movable plates, transverse plates are fixedly connected to the close sides of the two second fixed plates, and two limiting shafts are fixedly connected to the rear sides of the two transverse plates. And moving rods II are slidably connected to the far sides of the two protective covers. According to the traction rope fixing device, the first moving rod moves, the first fixing plate drives the moving plate to move, the fixing plate drives the transverse plate to move, the limiting shaft breaks away from control over the second moving rod, and fixing and limiting of the traction rope are achieved.

The utility model belongs to the technical field of geotechnical engineering investigation, and particularly relates to geotechnical engineering investigation safety monitoring equipment which comprises a box body, universal wheels arranged at the bottom of the box body, a handle arranged on one side of the box body, a vibrating wire reader arranged in the box body, a winding shaft arranged in the box body and a vibrating wire displacement monitoring meter arranged in the box body. A cleaning device is arranged in the box body. According to the utility model, the pile casing is arranged and is slidably connected outside the inner cylinder, so that the pile casing stretches out and draws back along with the measuring rod, the measuring rod is protected, the service life is prolonged, and the cleaning device is arranged, the motor drives the first gear to rotate, the two groups of second gears are meshed, and the first gear drives the two groups of second gears to rotate simultaneously, so that the measuring rod is cleaned. And therefore, the two groups of brushes rotate simultaneously to clean the anchor rod, and the influence of soil residues on the measurement precision is avoided.

The invention discloses a self-flushing type mica water level gauge and a method, belongs to the technical field of mica water level gauges, and provides the following scheme that high-temperature steam can be quickly cooled through cooling fins, the cooling area is increased, and meanwhile condensed liquid flows downwards to conduct self-flushing operation on a glass tube; the elastic force of an elastic assembly can be overcome along with the increase of the liquid, so that the water collecting cavity descends, meanwhile, an annular strip descends to a circular ring plate, at the moment, a tooth valve and a tooth plate relatively move for transmission, and the tooth valve completely opens the water inlet pipe to drain water to flush the glass tube in cooperation with the elastic force of a second spring; and when the liquid is reduced to a certain degree and the elastic assembly is reset, the sealing plug moves upwards, and the sealing plug and the upper part of the water level gauge are kept sealed, so that the liquid is quickly pressed out through air pressure reverse thrust, and the cleaning effect of the pressurized liquid on the glass tube can be improved.

This invention relates to an automatic vehicle weighing system based on a dynamic transportation process, belonging to the field of vehicle load detection technology. The system includes: a data acquisition unit for real-time acquisition of deformation angle data from measuring points on the vehicle's suspension system and generation of timestamps and vehicle identifiers; a data processing and communication unit for data preprocessing, local caching, obtaining vehicle location and operating conditions, and enabling local storage to resume transmission when communication is interrupted; a background service and calculation unit, where a dynamic benchmark management module automatically identifies periods of no-load, stationary, and horizontal state, stores the acquired deformation angle data as dynamic no-load benchmark values, and automatically triggers benchmark updates when the deviation between the new benchmark value and the initial benchmark value exceeds a threshold; and a load calculation module calculates the vehicle's load weight based on real-time deformation angle data and dynamic no-load benchmark values, combined with a load calculation model. This system achieves high-precision, maintenance-free dynamic measurement of the vehicle-mounted weighing system and improves its adaptive correction capability against zero-point drift.

The invention relates to the field of damping shock absorbers, in particular to a testing device and method for a variable damping shock absorber of a vehicle, and the device comprises a detection mechanism which is used for detecting the tensile resilience performance of the damping shock absorber; the clamping mechanism is used for carrying out limiting and fixing treatment on a plurality of different kinds of damping shock absorbers; a console is fixedly mounted at the bottom of the clamping mechanism, the detection mechanism is arranged right above the clamping mechanism, and the outer side of the detection mechanism is fixedly connected with the console; wherein the detection mechanism comprises a rod supporting seat, according to the testing device for the variable damping shock absorber of the vehicle and the testing method of the testing device, through continuous contraction of a first hydraulic rod, the whole supporting panel can move downwards along with the first hydraulic rod, the effect of fastening the damping shock absorber with the large size is achieved, and the testing efficiency is improved. And the mobile station and the supporting panel are connected with each other, so that preparation is made for subsequent damping frequency response and linear displacement.

The present invention belongs to the technical field of temperature measurement equipment, and specifically relates to a platinum resistance temperature sensor system and a detection device thereof, the platinum resistance temperature sensor system, including a PT100 temperature sensing element, an analog-to-digital converter MCP335X ADC, a microprocessor and a data processing neural network, the output end of the differential amplifier is connected to a hardware anti-aliasing filter; the platinum resistance temperature sensor detection device, including a detection part, a machine handle part and a data line, the inner wall of the quartz shell and the outer side of the inner insulating rod body are fitted with a copper inner shell, the inner side of the spiral thermal conductive glue flow channel is spirally wound with a platinum resistance wire, the interior of the spiral thermal conductive glue flow channel is filled with thermal conductive glue, and the interior of the quartz shell near one end of the machine handle is provided with a cooling member. The present invention can reduce electromagnetic interference, monitor power supply and signal anomalies, optimize data processing, and can improve thermal response speed, reduce the influence of thermal airflow on temperature measurement, and can also reduce damage caused by vibration impact.

The utility model relates to the technical field of water conservancy construction, and concretely is a kind of measuring device for water conservancy construction, including extension frame storage seat, the bottom of one end of extension frame is fixedly connected with storage box, the storage box is used to place counterweight installation, the bottom of counterweight is fixedly connected with support leg, the support leg is equipped with multiple, the side of storage box is equipped with insertion port, the insertion port is used to support plate horizontal insertion, one end of support plate is fixedly connected with pull plate, the other end of support plate is inserted in recess inside, the recess is equipped in the inside of storage box. The setting of storage box can store counterweight in storage box, when needing to increase counterweight, only need to pull pull plate and take out support plate from storage box, can let counterweight fall down, and increase the weight of the end of steel wire rope, avoid the water flow and steel wire rope to be crooked, influence measuring accuracy.

The utility model discloses a positioning structure for arc gear clearance detection, and relates to the technical field of gear detection, a supporting platform is arranged in the middle in a detection frame, a driving motor is arranged below the detection frame, a driving shaft is coaxially and fixedly installed at the upper end of the driving motor, and gears are installed at the upper ends of the driving shaft and a driven shaft through key grooves in a clamped mode respectively. The top of the upper end of the driving shaft and the top of the upper end of the driven shaft are provided with photoelectric conversion assemblies, the upper ends of the photoelectric conversion assemblies are provided with laser emitting devices, and a light panel is fixedly installed below the top of the detection frame through a hanging rod. A laser emitting device is arranged at the upper end of the photoelectric conversion assembly, a light panel is fixedly installed below the top of the detection frame through a hanging rod, laser emitted when the photoelectric conversion assembly rotates is received through the light panel, drawing is conducted through a computer, and then the circle center of rotation is measured and calculated according to laser drawing. Therefore, the installation gaps of the multiple sets of gears are indirectly calculated.