CN203083669U - Guide rail type reflective liquid level meter calibrating device - Google Patents
Guide rail type reflective liquid level meter calibrating device Download PDFInfo
- Publication number
- CN203083669U CN203083669U CN 201320107622 CN201320107622U CN203083669U CN 203083669 U CN203083669 U CN 203083669U CN 201320107622 CN201320107622 CN 201320107622 CN 201320107622 U CN201320107622 U CN 201320107622U CN 203083669 U CN203083669 U CN 203083669U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- guide rail
- reflection
- level gauge
- laser range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Abstract
The utility model discloses a guide rail type reflective liquid level meter calibrating device comprising a guide rail, a movable emitting device moving along the guide rail, a movable reflecting device moving along the guide rail and the other guide rail, wherein a reflecting plate of the movable reflecting device is used for reflecting a laser signal emitted by a laser range finer and an electromagnetic signal or ultrasonic signal emitted by a reflective liquid level meter to be detected; and a loading platform is provided with standard scales respectively used for measuring the longitudinal lengths of the laser range finer and the reflective liquid level meter to be detected. The numerical value of the distance between the reflective liquid level meter to be detected and the reflecting plate and the numerical value of the distance between the laser range finder and the reflecting plate are measured, and the relatively-precise measurement precision error of the reflective liquid level meter to be detected relative to different distances can be correspondingly calculated according to the multiply-measured distance numerical values of the reflective liquid level meter to be detected and the laser range finder and the measured numerical values of the longitudinal lengths of the laser range finder and the reflective liquid level meter to be detected. The guide rail type reflective liquid level meter calibrating device is high in calibration efficiency and strong in practicability.
Description
Technical field
The utility model belongs to the measuring equipment that relates to calibrating reflection-type liquid level gauge error in dipping, particularly guide tracked reflection-type liquid level gauge calibrating installation.
Background technology
The measuring principle of radar level gauge and ultrasonic level gage is identical, all be the purpose that reaches level gauging with " emission-reflection-reception " electromagnetic wave (radar wave) or hyperacoustic mode, so they is collectively referred to as the reflection-type liquid level gauge.Along with development of science and technology, liquid level gauge merges modernized scientific and technical means gradually, has now developed into new liquid level gauge kinds such as resistance-type, condenser type, static pressure type by former traditional mechanical formula liquid level gauge.Wherein, the reflection-type liquid level gauge is particularly outstanding.With respect to other type, the reflection-type liquid level gauge has characteristics such as volume is little, range is big, resolution is high, usable range is wide, in industries such as petrochemical complex, geologic prospecting, bioengineering, health care, commercial production, be widely used, meanwhile, the accuracy of reflection-type liquid level gauge is concerning the fairness of metering, be the important embodiment of its use value, therefore, the work of calibrating reflection-type liquid level gauge becomes the primary prerequisite of its widespread use.
At present, in China, basically all be to be that primary standard device main tool is to carry out the calibration operation of reflection-type liquid level gauge with the steel tape, measurement initial point with tested liquid level gauge begins, the air line distance of tested liquid level gauge of manual measurement and reflecting plate, compare as gauged distance and liquid level gauge measuring distance with this, calculate the measuring error of tested liquid level gauge.There is a lot of defectives in this method, and at first, manual measurement can cause stochastic error, brings bigger uncertainty to measurement result; Secondly, the moving of reflecting plate can't guarantee and tested liquid level gauge keeping parallelism in vertical direction, also can cause random deviation of measurement; The 3rd, measuring process is comparatively complicated, and labour intensity is big, longer duration, and therefore, the method for this original calibrating reflection-type liquid level gauge is demanded urgently improving and innovation.
The utility model content
The purpose of this utility model is to provide a kind of guide tracked reflection-type liquid level gauge calibrating installation, it is rational in infrastructure, swift to operate, calibrating efficient height, practical and be easy to promote can be good at overcoming the weak point and the defective of existing reflection-type liquid level gauge calibrating installation.
The purpose of this utility model is achieved in that a kind of guide tracked reflection-type liquid level gauge calibrating installation, comprise plane reflecting plate, have the linearity guide rail, moving projector and the portable reflection unit that extend along the plane, moving projector is made of slide rail go-cart, vertical fixed head, loading stage, laser range finder, support column, support column jacking gear and carriage, and portable reflection unit is made of slide rail transfer table, reflecting plate and Power Drive Unit; First rail wheel of installing in slide rail go-cart bottom with the mode of back and forth rolling and guide rail along the rail length direction movingly and and support the slide rail go-cart and slide rail go-cart companion first rail wheel moved back and forth along the rail length direction, in the slide rail go-cart, loading stage is being set, on the loading stage end face, installing the vertical fixed head vertical relatively with plane, guide rail place, at vertical fixed head laser range finder is installed, laser range finder has along the central axis of its length direction longitudinal extension relatively vertical with reflecting plate, the linearity guide groove that extends along the rail length direction is being set on the loading stage end face, support column and energy manual mode are regulated the support column jacking gear of support column lifting distance, the support column bottom is installed in the guide groove along guide groove and with the mode that reciprocatingly slides along the guide groove length direction and guide groove movingly, support column jacking gear control support column rises or descends, and is installed with on the support column top to remain to be propped up, the carriage of equipped reflection-type liquid level gauge to be checked; Second rail wheel of installing in slide rail transfer table bottom with the mode of back and forth rolling and guide rail along the rail length direction movingly and and support the slide rail transfer table and slide rail transfer table companion second rail wheel moved back and forth along the rail length direction, installing energy reflector laser, electromagnetic wave and hyperacoustic reflecting plate and Power Drive Unit at the slide rail transfer table, the Power Drive Unit output mechanical energy moves along guide rail along guide rail rolling and drive slide rail transfer table to drive second rail wheel; The transmitting terminal that laser range finder has is towards the reflecting plate that is positioned at slide rail go-cart the place ahead, the front side board face that reflecting plate is perpendicular with plane, guide rail place and it is relative with the laser range finder transmitting terminal is the energy reflector laser, electromagnetic wave and hyperacoustic reflecting surface, the plate body that vertical fixed head is positioned at laser range finder one side is provided with and is used for Laser Measurement stadimeter longitudinal length and is arranged in the row of first on straight line master scale line along the direction parallel with laser range finder longitudinal length direction, be positioned at loading stage be provided with on the end face of guide groove one side and be used to measure the reflection-type liquid level gauge longitudinal length to be checked that remains fixedly to be fitted on the carriage and be arranged in the row of second on straight line master scale line along the direction parallel with laser range finder longitudinal length direction, the scale mark that first row's master scale line is positioned at its head end is positioned at the projection of its terminal scale mark on plane, guide rail place with second row's master scale line and coincides its aliging with above-mentioned first scale mark of arranging master scale line head end that is positioned at foremost as the Laser emission end of laser range finder.
The utility model mainly comprises moving projector, portable reflection unit and three parts of guide rail; Moving projector is used for fixing laser range finder and reflection-type to be checked (reflective) liquid level gauge; Portable reflection unit is used for electromagnetic wave signal or the ultrasonic signal that laser signal that the reflector laser stadimeter emits and (tested) to be checked reflection-type liquid level gauge emit.Moving projector, portable reflection unit can move back and forth along guide rail.Using method of the present utility model is: at first reflection-type liquid level gauge to be checked is installed on the carriage, and manual adjustments support column jacking gear is with the height of adjusting carriage and order about support column with hand and slide in guide groove to adjust it along the position on the guide groove length direction, the transmitting terminal that finally makes reflection-type liquid level gauge to be checked is towards expelling plate, it is parallel with surface level to keep reflection-type liquid level gauge to be checked to have along the central axis of its length direction longitudinal extension, vertical with reflecting plate, when the every change of distance of reflection-type liquid level gauge to be checked and reflecting plate once, just starting reflection-type liquid level gauge to be checked records the distance values between itself and the reflecting plate and starts laser range finder (standard stadimeter) and record distance values between itself and the reflecting plate, the distance values that foundation reflection-type liquid level gauge to be checked and laser range finder repeatedly record, can corresponding calculate comparatively accurate measuring accuracy error, thereby finish the calibrating operation of error in dipping corresponding to different distance.The utility model is rational in infrastructure, and is swift to operate, and calibrating efficient height, practical and be easy to promote can be good at overcoming the weak point and the defective of existing reflection-type liquid level gauge calibrating installation.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the overall side-looking orthogonal projection structural representation of the utility model;
Fig. 2 is the overall perspective view of the utility model;
The perspective view that Fig. 3 totally matches with guide rail for the utility model moving projector;
Fig. 4 the utility model moving projector) sectional perspective structural representation (perspective view of support column, carriage and loading stage phase configuration).
Embodiment
A kind of guide tracked reflection-type liquid level gauge calibrating installation, as shown in Figure 1 and Figure 2, comprise plane reflecting plate 21, have the linearity guide rail 3, moving projector 1 and the portable reflection unit 2 that extend along the plane, as Fig. 1, Fig. 2, shown in Figure 3, moving projector 1 is made of slide rail go-cart 11, vertical fixed head 12, loading stage 13, laser range finder 14, support column 131, support column jacking gear and carriage 133, as shown in Figure 1 and Figure 2, portable reflection unit 2 is made of slide rail transfer table 22, reflecting plate 21 and Power Drive Unit 23; As Fig. 2, shown in Figure 3, first rail wheel of installing in slide rail go-cart 11 bottoms with the mode of back and forth rolling and guide rail 3 along guide rail 3 length directions movingly and and support slide rail go-cart 11 and slide rail go-cart 11 companions first rail wheel moved back and forth along guide rail 3 length directions, loading stage 13 is being set in slide rail go-cart 11, on loading stage 13 end faces, installing relatively and the vertical vertical fixed head 12 in plane, guide rail 3 place, at vertical fixed head 12 laser range finder 14 is installed, laser range finder 14 has along the central axis of its length direction longitudinal extension relatively vertical with reflecting plate 21, as Fig. 3, shown in Figure 4, the linearity guide groove 132 that extends along guide rail 3 length directions is being set on loading stage 13 end faces, support column 131 and energy manual mode are regulated the support column jacking gear of support column 131 lifting distances, support column 131 bottoms are installed on along guide groove 132 in the guide groove 132 and with the mode that reciprocatingly slides along guide groove 132 length directions and guide groove 132 movingly, support column jacking gear control support column 131 rises or descends, and is installed with on support column 131 tops to remain to be propped up, the carriage 133 of equipped reflection-type liquid level gauge 15 to be checked; As shown in Figure 1 and Figure 2, second rail wheel of installing in slide rail transfer table 22 bottoms with the mode of back and forth rolling and guide rail 3 along guide rail 3 length directions movingly and and support slide rail transfer table 22 and slide rail transfer table 22 companions second rail wheel moved back and forth along guide rail 3 length directions, installing energy reflector laser, electromagnetic wave and hyperacoustic reflecting plate 21 and Power Drive Unit 23 at slide rail transfer table 22, Power Drive Unit 23 output mechanical energies move along guide rail 3 along guide rail 3 rollings and drive slide rail transfer table 22 to drive second rail wheel; As Fig. 1, shown in Figure 2, the transmitting terminal that laser range finder 14 has is towards the reflecting plate 21 that is positioned at slide rail go-cart 11 the place aheads, the front side board face that reflecting plate 21 is perpendicular with plane, guide rail 3 place and it is relative with laser range finder 14 transmitting terminals is the energy reflector laser, electromagnetic wave and hyperacoustic reflecting surface, as Fig. 3, shown in Figure 4, the plate body that vertical fixed head 12 is positioned at laser range finder 14 1 sides is provided with and is used for Laser Measurement stadimeter 14 longitudinal lengths and is arranged in the row of first on straight line master scale line 161 along the direction parallel with laser range finder 14 longitudinal length directions, be positioned at loading stage 13 be provided with on the end face of guide groove 132 1 sides and be used to measure reflection-type liquid level gauge 15 longitudinal lengths to be checked that remain fixedly to be fitted on the carriage 133 and be arranged in the row of second on straight line master scale line 162 along the direction parallel with laser range finder 14 longitudinal length directions, the scale mark that first row's master scale line 161 is positioned at its head end is positioned at the projection of its terminal scale mark on plane, guide rail 3 place with second row's master scale line 162 and coincides laser range finder 14 its aliging with above-mentioned first scale mark of arranging master scale line 161 head ends that is positioned at foremost as the Laser emission end.
As shown in Figure 4, the knob that the support column jacking gear has is installed in the support column 131, and knob self is by controlling support column 131 liftings to be driven the mode of rotating by manual force.
As Fig. 2, shown in Figure 3, the xsect of guide rail 3 is triangular in shape or I-shaped.
As shown in Figure 4, carriage 133 takes the shape of the letter U planar or V-shaped line shape or circular arc wire, and it plays reflection-type liquid level gauge 15 to be checked at reflection-type liquid level gauge 15 downsides to be checked with the mode fixed support of semi-surrounding reflection-type liquid level gauge 15 to be checked.
Plate is being set on slide rail transfer table 22 end faces is relatively fixing parallel linearity draw-in groove with vertical, draw-in groove is spacing with reflecting plate 21 roots, be packed in the draw-in groove.
Concrete using method of the present utility model is: 1. as shown in Figure 1, 2, range ability according to reflection-type liquid level gauge 15 to be checked, be specified to length and radical to guide rail 3, be tiled in guide rail 3 on the level ground again and connect, then moving projector and portable reflection unit 2 are placed on the guide rail 3 equally, testing it can move horizontally along guide rail 3; 2. as shown in Figure 3, laser range finder 14 is horizontally fixed on the vertical fixed head 12, make laser range finder 14 foremost with being positioned at first row's master scale line 161 that scale mark concordant (being that laser range finder 14 is concordant with vertical fixed head 12 front side board faces foremost) foremost, read the length numerical value a of laser range finder 14; Loading stage 13 as shown in Figure 4, reflection-type liquid level gauge 15 to be checked is placed on the loading stage 13, length and external form according to reflection-type liquid level gauge 15 to be checked are adjusted support column 131 and carriage 133, make reflection-type liquid level gauge 15 to be checked can level, stably place, and make reflection-type liquid level gauge 15 rearmost ends to be checked with that scale mark concordant (being that reflection-type liquid level gauge 15 rearmost ends to be checked are close to vertical fixed head 12 front side board faces) that is positioned at second row's master scale line, 162 rearmost ends, read the length numerical value b of reflection-type liquid level gauge 15 to be checked.The relative distance numerical value of laser range finder 14 and reflection-type liquid level gauge 15 to be checked is C0=a+b, and (annotate: the null position of laser range finder 14 is positioned at its bottom (rearmost end), the null position of reflection-type liquid level gauge 15 to be checked is positioned at its top (foremost)), can be again above distance values input and the supporting software systems of the utility model, this software systems send wireless signal to Power Drive Unit so that portable reflection unit 2 moves horizontally along guide rail 3, after portable reflection unit 2 moves to locating of software systems setting, laser range finder 14 outputting standard distance C 1, reflection-type liquid level gauge 15 output measuring distance C2 to be checked, reflection-type liquid level gauge 15 then to be checked is Y=[C2-(C1-C0) in the measurement error of indication of this liquid level]/(C1-C0) * 100%.Software systems control Power Drive Unit continues to march to the next one once more and locates, calculate the measurement error of indication of reflection-type liquid level gauge 15 to be checked on current of living in locating, in range ability, finally finish the calibration operation of reflection-type liquid level gauge 15 to be checked, the measurement error of indication verification result that output is determined.
Claims (6)
1. guide tracked reflection-type liquid level gauge calibrating installation, comprise plane reflecting plate (21), it is characterized in that: have the linearity guide rail (3), moving projector (1) and the portable reflection unit (2) that extend along the plane, moving projector (1) is made of slide rail go-cart (11), vertical fixed head (12), loading stage (13), laser range finder (14), support column (131), support column jacking gear and carriage (133), and portable reflection unit (2) is made of slide rail transfer table (22), reflecting plate (21) and Power Drive Unit (23); First rail wheel of installing in slide rail go-cart (11) bottom with the mode of back and forth rolling and guide rail (3) along guide rail (3) length direction movingly and and support slide rail go-cart (11) and slide rail go-cart (11) companion first rail wheel moved back and forth along guide rail (3) length direction, loading stage (13) is being set in slide rail go-cart (11), on loading stage (13) end face, installing the vertical fixed head (12) vertical relatively with guide rail (3) plane, place, at vertical fixed head (12) laser range finder (14) is installed, laser range finder (14) has along the central axis of its length direction longitudinal extension relatively vertical with reflecting plate (21), the linearity guide groove (132) that extends along guide rail (3) length direction is being set on loading stage (13) end face, support column (131) and energy manual mode are regulated the support column jacking gear of support column (131) lifting distance, support column (131) bottom is installed on along guide groove (132) in the guide groove (132) and with the mode that reciprocatingly slides along guide groove (132) length direction and guide groove (132) movingly, support column jacking gear control support column (131) rises or descends, and is installed with on support column (131) top to remain to be propped up, the carriage (133) of equipped reflection-type liquid level gauge to be checked (15); Second rail wheel of installing in slide rail transfer table (22) bottom with the mode of back and forth rolling and guide rail (3) along guide rail (3) length direction movingly and and support slide rail transfer table (22) and slide rail transfer table (22) companion second rail wheel moved back and forth along guide rail (3) length direction, installing energy reflector laser, electromagnetic wave and hyperacoustic reflecting plate (21) and Power Drive Unit (23) at slide rail transfer table (22), Power Drive Unit (23) output mechanical energy moves along guide rail (3) along guide rail (3) rolling and drive slide rail transfer table (22) to drive second rail wheel; The transmitting terminal that laser range finder (14) has is towards the reflecting plate (21) that is positioned at slide rail go-cart (11) the place ahead, reflecting plate (21) and its with laser range finder (14) transmitting terminal relative front side board face perpendicular with guide rail (3) plane, place is can reflector laser, electromagnetic wave and hyperacoustic reflecting surface, the plate body that vertical fixed head (12) is positioned at laser range finder (14) one sides is provided with and is used for Laser Measurement stadimeter (14) longitudinal length and is arranged in the row of first on straight line master scale line (161) along the direction parallel with laser range finder (14) longitudinal length direction, be positioned at loading stage (13) be provided with on the end face of guide groove (132) one sides to be used for measuring reflection-type liquid level gauge (15) longitudinal length to be checked that remains fixedly to be fitted on the carriage (133) and to be arranged in second on the straight line and arrange master scale line (162) along the direction parallel with laser range finder (14) longitudinal length direction, the scale mark that first row's master scale line (161) is positioned at its head end is positioned at the projection of its terminal scale mark on guide rail (3) plane, place with second row's master scale line (162) and coincides, its aliging with above-mentioned first scale mark of arranging master scale line (161) head end that is positioned at foremost as the Laser emission end of laser range finder (14).
2. guide tracked reflection-type liquid level gauge calibrating installation according to claim 1, it is characterized in that: portable reflection unit (2) also comprises can cooperate the wireless instructions receiver that receives the transmitted radio signal instruction of wireless instructions transmitter institute, and the wireless instructions receiver that is arranged on the slide rail transfer table (22) back and forth rolls along guide rail (3) according to radio signal instruction control Power Drive Unit (23) driving second rail wheel that the wireless instructions transmitter that it received sends.
3. guide tracked reflection-type liquid level gauge calibrating installation according to claim 1, it is characterized in that: the knob that the support column jacking gear has is installed in the support column (131), and knob self is by controlling support column (131) lifting to be driven the mode of rotating by manual force.
4. guide tracked reflection-type liquid level gauge calibrating installation according to claim 1, it is characterized in that: the xsect of guide rail (3) is triangular in shape or I-shaped.
5. guide tracked reflection-type liquid level gauge calibrating installation according to claim 1, it is characterized in that: carriage (133) takes the shape of the letter U planar or V-shaped line shape or circular arc wire, and it plays reflection-type liquid level gauge to be checked (15) at reflection-type liquid level gauge to be checked (15) downside with the mode fixed support of semi-surrounding reflection-type liquid level gauge to be checked (15).
6. guide tracked reflection-type liquid level gauge calibrating installation according to claim 1, it is characterized in that: plate is being set on slide rail transfer table (22) end face is relatively fixing parallel linearity draw-in groove with vertical, draw-in groove is spacing with reflecting plate (21) root, be packed in the draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107622 CN203083669U (en) | 2013-03-08 | 2013-03-08 | Guide rail type reflective liquid level meter calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107622 CN203083669U (en) | 2013-03-08 | 2013-03-08 | Guide rail type reflective liquid level meter calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083669U true CN203083669U (en) | 2013-07-24 |
Family
ID=48829494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320107622 Withdrawn - After Issue CN203083669U (en) | 2013-03-08 | 2013-03-08 | Guide rail type reflective liquid level meter calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203083669U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575367A (en) * | 2013-03-08 | 2014-02-12 | 新疆维吾尔自治区计量测试研究院 | Guide rail type calibrating device for reflection-type liquid level meter |
| CN104101406A (en) * | 2014-08-01 | 2014-10-15 | 昆山市创新科技检测仪器有限公司 | Precision automatic detecting device for liquidometer |
| CN107747995A (en) * | 2017-10-19 | 2018-03-02 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | The liquid level gauge filed detection system and method for a kind of high voltage direct current converter valve cooling system |
| RU2690701C2 (en) * | 2018-11-14 | 2019-06-05 | Акционерное Общество "Теккноу" | Metrological bench for verification, calibration of level gauges and level indicators |
| CN109916477A (en) * | 2019-03-19 | 2019-06-21 | 台州市计量设备技术校准中心 | A kind of ultrasonic level meter field calibration device and method |
| CN109945908A (en) * | 2017-12-20 | 2019-06-28 | 深圳先进技术研究院 | A kind of test device and test method for ultrasonic transducer echo test |
| CN110282529A (en) * | 2019-06-10 | 2019-09-27 | 杭州职业技术学院 | A kind of escalator circlip real-time detection system for state |
| RU197046U1 (en) * | 2019-07-29 | 2020-03-26 | Александр Александрович Терехин | DEVICE FOR TESTING AND CALIBRATING LEVEL MEASUREMENT DEVICES |
| CN111198029A (en) * | 2018-11-16 | 2020-05-26 | 中冶宝钢技术服务有限公司 | Off-line calibration tool and calibration method for radar level indicator |
-
2013
- 2013-03-08 CN CN 201320107622 patent/CN203083669U/en not_active Withdrawn - After Issue
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575367A (en) * | 2013-03-08 | 2014-02-12 | 新疆维吾尔自治区计量测试研究院 | Guide rail type calibrating device for reflection-type liquid level meter |
| CN103575367B (en) * | 2013-03-08 | 2016-06-08 | 新疆维吾尔自治区计量测试研究院 | Guide tracked reflection-type liquid level meter detecting device |
| CN104101406A (en) * | 2014-08-01 | 2014-10-15 | 昆山市创新科技检测仪器有限公司 | Precision automatic detecting device for liquidometer |
| CN107747995A (en) * | 2017-10-19 | 2018-03-02 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | The liquid level gauge filed detection system and method for a kind of high voltage direct current converter valve cooling system |
| CN109945908A (en) * | 2017-12-20 | 2019-06-28 | 深圳先进技术研究院 | A kind of test device and test method for ultrasonic transducer echo test |
| RU2690701C2 (en) * | 2018-11-14 | 2019-06-05 | Акционерное Общество "Теккноу" | Metrological bench for verification, calibration of level gauges and level indicators |
| EA034736B1 (en) * | 2018-11-14 | 2020-03-13 | Ао "Теккноу" | Metrological stand for verification and calibration of level meters and level alarms |
| CN111198029A (en) * | 2018-11-16 | 2020-05-26 | 中冶宝钢技术服务有限公司 | Off-line calibration tool and calibration method for radar level indicator |
| CN111198029B (en) * | 2018-11-16 | 2021-08-03 | 中冶宝钢技术服务有限公司 | Off-line calibration method for radar level gauge |
| CN109916477A (en) * | 2019-03-19 | 2019-06-21 | 台州市计量设备技术校准中心 | A kind of ultrasonic level meter field calibration device and method |
| CN110282529A (en) * | 2019-06-10 | 2019-09-27 | 杭州职业技术学院 | A kind of escalator circlip real-time detection system for state |
| CN110282529B (en) * | 2019-06-10 | 2020-06-12 | 杭州职业技术学院 | Real-time detection system for state of clamp spring of escalator |
| RU197046U1 (en) * | 2019-07-29 | 2020-03-26 | Александр Александрович Терехин | DEVICE FOR TESTING AND CALIBRATING LEVEL MEASUREMENT DEVICES |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203083669U (en) | Guide rail type reflective liquid level meter calibrating device | |
| CN103575367B (en) | Guide tracked reflection-type liquid level meter detecting device | |
| CN101464163B (en) | Straightness detecting method for platform normal point used for total station instrument check | |
| CN105157794A (en) | Guided wave radar liquidometer detection device | |
| CN204346380U (en) | Pressure vessel internal diameter laser measuring apparatus | |
| CN104792261A (en) | Three-dimensional space fine measuring system for underground cavities | |
| CN103852035A (en) | Mechanism for measuring straightness or coaxiality of slender rods and measurement method for realizing straightness or coaxiality of slender rod by using mechanism | |
| CN105180763A (en) | Concrete structure steel bar protection layer thickness detection environment calibrating device and operation method | |
| CN211042065U (en) | Barrel straightness detection ruler | |
| CN109253713B (en) | Slider returns to hole position measurement equipment | |
| CN212903479U (en) | Comprehensive calibrating device for non-contact radar level meter | |
| CN107764235B (en) | Elevation vertical transmission measurement method for high-rise building construction | |
| CN203011315U (en) | Device for detecting diaphragm depth of gas meter | |
| CN212620516U (en) | Cross-rod distance measuring device | |
| CN209927089U (en) | Vehicle height measuring instrument | |
| CN102768032B (en) | Nondestructive thickness measuring instrument is used to measure the method for slab thickness | |
| CN205002853U (en) | Guided wave radar level gauge detection device | |
| CN208206054U (en) | A kind of large scale gauge for checking linearity with coordinate information | |
| CN202501816U (en) | Special measuring tool for measuring height and stalk diameter of a plant | |
| CN202041148U (en) | Tool for measuring non-planar height | |
| CN202522196U (en) | Indicating gauge testing fixture for length measuring machine | |
| CN205119995U (en) | Concrete structure cover to reinforcement thickness check environment calibrating device | |
| CN214308555U (en) | Verticality measuring device | |
| CN213179893U (en) | Measuring system for side wall space of duct piece steel die | |
| CN203163694U (en) | Workpiece surface pattern height measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130724 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |