CN215447997U - Novel ultrasonic wave evaporation sensor's examination calibration device - Google Patents
Novel ultrasonic wave evaporation sensor's examination calibration device Download PDFInfo
- Publication number
- CN215447997U CN215447997U CN202122049761.4U CN202122049761U CN215447997U CN 215447997 U CN215447997 U CN 215447997U CN 202122049761 U CN202122049761 U CN 202122049761U CN 215447997 U CN215447997 U CN 215447997U
- Authority
- CN
- China
- Prior art keywords
- vernier caliper
- baffle
- ultrasonic
- sensor
- evaporation
- 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.)
- Expired - Fee Related
Links
- 230000008020 evaporation Effects 0.000 title claims abstract description 61
- 238000001704 evaporation Methods 0.000 title claims abstract description 61
- 238000012795 verification Methods 0.000 claims abstract description 16
- 210000000078 claw Anatomy 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 238000005259 measurement Methods 0.000 abstract description 9
- 239000002184 metal Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
Abstract
The utility model provides a novel calibrating device for an ultrasonic wave evaporation sensor, which comprises: the device comprises a horizontal base, a vernier caliper, a baffle and a current measurer; the upper surface of the horizontal base is provided with an adjusting area and a fixing area in parallel, the vernier caliper is arranged in the adjusting area, the baffle is arranged on a movable measuring claw of the vernier caliper, and the fixing area is provided with a rectangular hollow groove for placing the ultrasonic evaporation sensor. A horizontal measurement mode is adopted, so that the volume is smaller, and the influence of temperature deformation is smaller; the vernier caliper is adopted for horizontal sliding measurement, the reference water level can be adjusted, the same device is suitable for verification or calibration of ultrasonic evaporation sensors of various types, the applicability is wider, and the precision is higher; easy operation, small volume, light weight, good portability and low cost.
Description
Technical Field
The utility model belongs to the technical field of ultrasonic evaporator calibration, and particularly relates to a novel calibrating device for an ultrasonic evaporation sensor.
Background
The ultrasonic evaporation sensor is an intelligent sensor for observing evaporation capacity in meteorology, and measures the height change of the water surface in the evaporator according to the ultrasonic ranging principle.
At present, standard gauge blocks are used for simulating the standard height of water level in the ultrasonic evaporation sensor in the automatic weather station, but evaporators of various models have slight differences in manufacturing process, so that the datum water level is different, and the datum water level cannot be adjusted when the datum water level is measured, namely, the different models of evaporation sensors need the datum gauge blocks with different heights.
In addition, since the standard gauge blocks are fixed in height and are not adjustable, and can be spliced with each other only in the vertical direction, an error is increased by using the standard gauge blocks as the standard measurement reference water level. For example, since the maximum allowable error of the standard gauge blocks at the respective heights is ± 0.04mm, the maximum allowable error of the three standard gauge blocks is 0.12mm, so that the maximum allowable error is multiplied after the plurality of standard gauge blocks are spliced together, which causes inaccuracy of subsequent verification data and increase of system error.
The standard proof mass verification method also has the following disadvantages:
1. the metal standard gauge block has expansion with heat and contraction with cold effects, the correlation between the expansion coefficient and the temperature is strong, and the errors of the evaporation sensors measured by the same standard gauge block in winter and summer are different;
2. the standard gauge block groups are combined together, the size is large, the weight of the metal gauge block groups is large, different heights can be combined by ceaselessly splicing when the metal gauge block groups are used for verification or calibration, the use is complicated, the carrying is inconvenient, the system error during verification or calibration is increased, and the complexity of the verification or calibration process is increased.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a novel calibrating device for an ultrasonic evaporation sensor. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
The utility model adopts the following technical scheme:
in some optional embodiments, there is provided a novel ultrasonic evaporation sensor verification and calibration device, comprising: the device comprises a horizontal base, a vernier caliper, a baffle and a current measurer; an adjusting area and a fixing area are arranged on the upper surface of the horizontal base in parallel, the vernier caliper is arranged in the adjusting area, the baffle is arranged on a movable measuring claw of the vernier caliper and is perpendicular to the upper surface of the horizontal base; the fixing area is provided with a rectangular hollow groove for placing the ultrasonic evaporation sensor; the current measurer is connected with a signal output line of the ultrasonic evaporation sensor.
Further, the current measurer is a multimeter.
Furthermore, the baffle is a circular baffle, the diameter of the baffle is 50mm, and the baffle is arranged on the movable measuring claw of the vernier caliper through a bracket.
Furthermore, the baffle is made of stainless steel.
Furthermore, the horizontal base is rectangular, and the length of the horizontal base is 380mm, and the width is 100 mm.
Furthermore, the measuring stroke of the vernier caliper is 0-120mm, and the precision is 0.02 mm.
Further, the width of the rectangular hollow-out groove is 59mm, and the length is 125 mm.
Further, the calibrating device for the novel ultrasonic wave evaporation sensor further comprises: and the stepping motor is used for driving the movable measuring claw of the vernier caliper to move.
The utility model has the following beneficial effects:
1. the utility model adopts a horizontal measurement mode, has smaller volume and is less influenced by temperature deformation;
2. the utility model adopts the vernier caliper to measure in a horizontal sliding way, can adjust the reference water level, is suitable for the detection or calibration of ultrasonic evaporation sensors of various types, and has wider applicability and higher precision;
3. the utility model has the advantages of easy operation, small volume, light weight, good portability and low cost.
Drawings
FIG. 1 is a schematic diagram of the structure of an ultrasonic evaporative sensor verification and calibration device according to the present invention;
FIG. 2 is a schematic view of the position of the horizontal base, the vernier caliper and the baffle of the present invention;
fig. 3 is a schematic view of the ultrasonic evaporative sensor of the present invention positioned on a horizontal base.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the utility model to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others.
As shown in fig. 1-3, in some illustrative embodiments, the present invention provides a novel verification and calibration device for ultrasonic evaporative sensors, which is applied to verification or calibration of ultrasonic evaporative sensors in automatic weather stations in the weather industry, and specifically comprises: horizontal base 1, slide caliper 2, baffle 3 and current measurement ware 4.
The vernier caliper 2 of the utility model adopts a digital display vernier caliper.
The horizontal base 1 plays a horizontal supporting role, and supports the ultrasonic evaporation sensor 5 and the vernier caliper 2 so that the two are on a measuring horizontal plane. The upper surface of the horizontal base 1 is provided with an adjusting area 101 and a fixing area 102 in parallel, the vernier caliper 2 is arranged in the adjusting area 101 as a measurement standard, the fixing area 102 is provided with a rectangular hollow groove 103 for placing the ultrasonic evaporation sensor 5, and the vernier caliper 2 is fixed on the horizontal base 1 and is consistent with the placing direction of the ultrasonic evaporation sensor 5.
The baffle 3 is arranged on a movable measuring claw of the vernier caliper 2, specifically on an outer measuring claw which can move the vernier caliper 2, so that the baffle 3 can move left and right relative to the horizontal base 1. The baffle 3 is perpendicular to the upper surface of the horizontal base 1, so that the transmitting end of the columnar ultrasonic evaporation sensor 5 horizontally placed on the rectangular hollow groove 103 is perpendicular to the baffle 3, and therefore the baffle 3 can block the ultrasonic waves transmitted by the ultrasonic evaporation sensor 5 to simulate the water level.
The current measuring device 4 is connected with a signal output line of the ultrasonic evaporation sensor 5, and the current measuring device 4 detects a current signal output by the ultrasonic evaporation sensor 5 in real time. The current measuring device 4 is a multimeter. Multimeters, also known as multiplex, multi-purpose, triple, multi-purpose, etc., generally aim at measuring voltage, current and resistance, and are magnetoelectric instruments with a rectifier and capable of measuring a variety of electrical parameters such as alternating current, direct current, voltage and resistance.
The baffle 3 is circular baffle, and the diameter of baffle 3 is 50mm, is adapted to the shape and the size of ultrasonic wave evaporation sensor 5, can guarantee to block the signal that ultrasonic wave evaporation sensor 5 sent completely. Baffle 3 passes through support 6 to be installed on slide caliper 2's movable measurement claw, specifically can utilize the screw to fix, and is firm difficult not hard up, and is convenient for adjust the dismouting. Preferably, the baffle 3 is made of stainless steel, and is durable, flat, high in hardness and not easy to deform.
The horizontal base 1 is rectangular, and the length of the horizontal base 1 is 380mm, and the width is 100 mm. The measuring travel of the vernier caliper 2 is 0-120mm, the requirement of the measuring range of 0-100mm is met, and the precision of the vernier caliper 2 is 0.02 mm.
The width of rectangle fretwork groove 103 is 59mm, and length is 125mm, can place ultrasonic wave evaporation sensor 5 completely, and the bottom of ultrasonic wave evaporation sensor 5 is sunk in rectangle fretwork groove 103 to fixed ultrasonic wave evaporation sensor 5 makes it unable the roll.
The ultrasonic wave evaporation sensor 5 outputs current in a 4mA-20mA mode, the corresponding water level height is 0mm-100mm, the difference of the evaporation water level measured every hour is the hour evaporation capacity of the previous time, and the sum of the evaporation capacity of the hour of the day is the day evaporation capacity of the day.
The evaporation amount calculation method is as follows:
when the evaporation water level is 0mm, the output current of the ultrasonic evaporation sensor 5 is 4 mA; when the evaporation water level is 100mm, the output of the ultrasonic evaporation sensor 5 is 20mA, and the real-time evaporation water level calculation formula is as follows:
h＝100×(I-4)/(20-4)；
in the above formula, h is the evaporation water level in mm; and I is the current value of the ultrasonic evaporation sensor in mA.
The detection is carried out according to JJG 006-2011-automatic meteorological station evaporation sensor, the detection regulation requires that the maximum relative error is less than or equal to 1.5 percent when the evaporation sensor measures evaporation amounts of 20mm, 40mm, 60mm, 80mm and 90mm, and the detection is qualified, otherwise, the detection is unqualified.
During specific operation, firstly, the ultrasonic evaporation sensor 5 is horizontally placed on the rectangular hollow-out groove 103, the ultrasonic evaporation sensor 5 is connected with electricity, a current gear of a multimeter is connected with a signal output line of the ultrasonic evaporation sensor 5, the transmitting end of the ultrasonic evaporation sensor 5 is right opposite to the baffle 3, and the vernier caliper 2 slides to the minimum position. The ultrasonic wave emitted by the ultrasonic wave evaporation sensor 5 can be blocked by the baffle 3, and the slide of the vernier caliper 2 is utilized to drive the baffle 3 to move.
Then, sliding a baffle plate 3 on the vernier caliper to the side far away from the transmitting end of the ultrasonic evaporation sensor 5, observing that the output current signal of the ultrasonic evaporation sensor 5 stops sliding when the output current signal starts to change from 4.01mA, adjusting a sliding interval to enable the current signal output of the ultrasonic evaporation sensor 5 to be about 4.03mA, resetting the vernier caliper 2, determining the point as a zero point, and calculating a zero error value h according to a formula h which is 100 x (I-4)/(20-4)0。
Then, continuing to slide the baffle 3 on the vernier caliper to the side far away from the transmitting end of the ultrasonic evaporation sensor 5, so that the digital display value of the vernier caliper 2 is close to 20mm and fixed, reading the current output signal of the multimeter, calculating the corresponding water level height value by using the formula h as 100 × (I-4)/(20-4), and calculating the relative error Δ h of the point by using the following formula:
in the above formula, h is the height value of the ultrasonic evaporation sensor after the current signal output conversion, and is mm; h is0Zero error value, mm; h issAnd (4) displaying the digital display value of the vernier caliper at each measuring point in mm.
Then, the operation is repeated, the baffle plate on the vernier caliper is continuously slid to the side far away from the transmitting end of the ultrasonic evaporation sensor 5, so that the digital display value of the vernier caliper 2 is close to 40mm, 60mm, 80mm and 90mm, and the relative error of each point is calculated in sequence.
The existing calibrating device measures the distance in a longitudinal and vertical mode, the expansion coefficient of the metal standard gauge block is greatly influenced by temperature, and measurement system errors are brought.
The standard gauge block used by the existing calibrating device can not be adjusted when measuring the reference water level, namely, different types of evaporation sensors need different heights of reference gauge blocks. And the precision of the vernier caliper is 0.02mm at most and can be 0.04mm higher than that of a standard gauge block.
The existing calibrating device has large volume, heavy weight of the metal gauge block and poor portability. The device is simple and practical, small in size, light in weight, good in portability and low in manufacturing cost.
Preferably, the present invention further comprises: a step motor for driving slide caliper 2's movable measuring jaw carries out the removal, and step motor's output sets up the gear, sets up the rack on slide caliper 2's the movable measuring jaw, and the gear meshes with the rack to realize that step motor drives slide caliper 2's movable measuring jaw when rotating and removes. The existing calibration device is used for manual measurement, manual conversion of a metal gauge block is time-consuming and labor-consuming, and a vernier caliper with a stepping motor is added to the device to realize automatic calibration or calibration.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, simplifications and equivalents which do not depart from the spirit and principle of the present invention should be construed as being included in the scope of the present invention.
Claims (8)
1. The utility model provides a novel ultrasonic wave evaporation sensor's examination calibrating device which characterized in that includes: the device comprises a horizontal base, a vernier caliper, a baffle and a current measurer; an adjusting area and a fixing area are arranged on the upper surface of the horizontal base in parallel, the vernier caliper is arranged in the adjusting area, the baffle is arranged on a movable measuring claw of the vernier caliper and is perpendicular to the upper surface of the horizontal base; the fixing area is provided with a rectangular hollow groove for placing the ultrasonic evaporation sensor; the current measurer is connected with a signal output line of the ultrasonic evaporation sensor.
2. The novel ultrasonic evaporative sensor verification and calibration device as claimed in claim 1, wherein the current measurer is a multimeter.
3. The calibrating and calibrating device for the novel ultrasonic evaporative sensor as claimed in claim 1 or 2, wherein the baffle is a circular baffle, the diameter of the baffle is 50mm, and the baffle is mounted on the movable measuring claw of the vernier caliper through a bracket.
4. The novel ultrasonic evaporation sensor verification and calibration device as claimed in claim 3, wherein the baffle plate is made of stainless steel.
5. A novel ultrasonic evaporative sensor verification and calibration device as claimed in claim 1 or 4, wherein the horizontal base is rectangular, and the length of the horizontal base is 380mm and the width is 100 mm.
6. The novel ultrasonic evaporative sensor verification and calibration device as claimed in claim 5, wherein the measuring stroke of the vernier caliper is 0-120mm, and the precision is 0.02 mm.
7. The novel ultrasonic evaporative sensor verification and calibration device as claimed in claim 6, wherein the rectangular hollow groove has a width of 59mm and a length of 125 mm.
8. The novel ultrasonic evaporative sensor verification and calibration device as claimed in claim 7, further comprising: and the stepping motor is used for driving the movable measuring claw of the vernier caliper to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122049761.4U CN215447997U (en) | 2021-08-29 | 2021-08-29 | Novel ultrasonic wave evaporation sensor's examination calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122049761.4U CN215447997U (en) | 2021-08-29 | 2021-08-29 | Novel ultrasonic wave evaporation sensor's examination calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215447997U true CN215447997U (en) | 2022-01-07 |
Family
ID=79696921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122049761.4U Expired - Fee Related CN215447997U (en) | 2021-08-29 | 2021-08-29 | Novel ultrasonic wave evaporation sensor's examination calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215447997U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117949494A (en) * | 2024-03-27 | 2024-04-30 | 江西省气象探测中心 | Evaluation method and device for measurement uncertainty of ultrasonic evaporation sensor |
-
2021
- 2021-08-29 CN CN202122049761.4U patent/CN215447997U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117949494A (en) * | 2024-03-27 | 2024-04-30 | 江西省气象探测中心 | Evaluation method and device for measurement uncertainty of ultrasonic evaporation sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103235163B (en) | Test probe with adjustable probe-needle gaps for testing contact resistances of solar batteries | |
| CN215447997U (en) | Novel ultrasonic wave evaporation sensor's examination calibration device | |
| CN103063108A (en) | Plastic bottle diameter and height measuring instrument | |
| CN102519424B (en) | Accelerometer mounting tool angle change monitoring system | |
| CN106092137B (en) | The outdoor calibrator (-ter) unit and method of a kind of vehicle-mounted three-dimensional laser pavement detection system | |
| KR101210091B1 (en) | Equipment to obtain 3 point water velocity at a stream using usgs type pygmy meter | |
| CN110160488A (en) | A kind of measurement method and measuring device of profile iron Sarasota elevation | |
| CN205192503U (en) | Angular transducer automatic checkout device | |
| RU2495384C1 (en) | Automated calibration plant of linear movements and method for improving accuracy of vertical plants for metrological qualification of two level gauges simultaneously | |
| CN205352314U (en) | Novel laser range finder detects device | |
| CN208350013U (en) | A kind of equipment that road is calibrated with laser ranging formula section tester high-precision calibrating | |
| CN113702887A (en) | Horizontal type verification and calibration system and method for ultrasonic evaporation sensor | |
| CN101852581B (en) | Continuous wall thickness measurer and measuring method | |
| CN211601915U (en) | Angle measuring instrument | |
| CN214149389U (en) | Intelligent grating type indicator verification instrument | |
| CN221259811U (en) | Slope measuring device | |
| CN209877834U (en) | Pipe wall thickness measuring device | |
| CN111322998A (en) | Prism device for linear measurement of arch rib of steel pipe arch bridge | |
| CN201037763Y (en) | Radius measuring means | |
| CN207395929U (en) | A kind of work glass liquid thermometer alignment aid | |
| CN219084282U (en) | Belt tension measuring device | |
| CN211262532U (en) | Temperature field measuring and balancing device for electronic thermometer verification | |
| CN1055055A (en) | A kind of measuring method of rotary kiln axis and measuring system | |
| CN219105161U (en) | Special laser range finder of contact net | |
| CN213120524U (en) | Slope measurer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220107 |