Ultrasonic distance measurement control

Ultrasonic Distance, Area and Volume Measuring Device with Digital LCD Display Distance: 60 Ft / 18 Mt, Constructed to work on the roughest and dirtiest jobsites, this ultrasonic distance measurer provides a reliable, accurate and fast way to measure distances and calculate the area and volume of any space. Its perfect for determining ceiling heights, calculating length of pipe, cable, or estimating materials such as paint, drywall, flooring, etc. Its extremely easy-to-use. Just press one button and the distance will instantly show up on the LCD display, and simply by pressing a few buttons, areas and volumes can be calculated. Its blue backlit LCD display also makes it easy to read on the dimly lit or dark jobsites. This handy tool is perfect for both professional builders and DIY home handymen. Buy one to replace your old tape measure It can measure distances in a straight-line from 0.5 to 18 meters Your distance measure transmits ultrasonic waves to a point you want to measure. Afterwards, it measures the time taken by the waves to reflect and then calculates and re-transcribes the distance.         Power supply: 9v Alkaline Battery (not Included) Laser: Class II Laser Product Approximate Dimensions: 155mm X 70mm X 32mm (L X W X D) Approximate Weight: 102gm Unit of measurement: Feet or Meters Measure Distance: From 1.5 Feet to 60 Feet or 0.5m to18m Area: volume, addition, subtraction calculation. Output: 1mw Accuracy: -0.5 % Frequency: 40kHz (ultrasonic pickup) Resolution: 0.01 Mor 1/2 Inch LCD: Digital With Blue Backlight.        

Ultrasonic Laser Distance Measurer (0.5 to 18 Meters) Ultrasonic Distance, Area and Volume Measuring Device with Digital LCD Display Distance: 60 Ft / 18 Mt, Constructed to work on the roughest and dirtiest jobsites, this ultrasonic distance measurer provides a reliable, accurate and fast way to measure distances and calculate the area and volume of any space. Its perfect for determining ceiling heights, calculating length of pipe, cable, or estimating materials such as paint, drywall, flooring, etc. Its extremely easy-to-use. Just press one button and the distance will instantly show up on the LCD display, and simply by pressing a few buttons, areas and volumes can be calculated. Its blue backlit LCD display also makes it easy to read on the dimly lit or dark jobsites. This handy tool is perfect for both professional builders and DIY home handymen. Buy one to replace your old tape measure It can measure distances in a straight-line from 0.5 to 18 meters Your distance measure transmits ultrasonic waves to a point you want to measure. Afterwards, it measures the time taken by the waves to reflect and then calculates and re-transcribes the distance. Power supply: 9v Alkaline Battery (not Included) Laser: Class II Laser Product Approximate Dimensions: 155mm X 70mm X 32mm (L X W X D) Approximate Weight: 102gm Unit of measurement: Feet or Meters Measure Distance: From 1.5 Feet to 60 Feet or 0.5m to18m Area: volume, addition, subtraction calculation. Output: 1mw Accuracy: -0.5 % Frequency: 40kHz (ultrasonic pickup) Resolution: 0.01 Mor 1/2 Inch LCD: Digital With Blue Backlight.

Quick and easy to use Get acurate measurements every time Can be used indoors & outdoors, Current temperature display feature Foot/Meter function button Area, volume, addition, subtraction calculation Backlit LCD screen Auto stop: switches off if you do not press any key for 1 min Memory: allows you to measure and store 3 different measures Uses 1 x 9v battery (not included)      Specifications: Power 1 x 9V Unit of measurement Feet or Meters Accuracy ±0.5% ±1 digit(2~60ft) Resolution 0.01M or 1/2 Inch LCD With Backlight Working Frequency 40KHz Working Temperature 32°F to °F (0°C to 43°C) Range 0.50 to m     Package  1 x Ultrasonic Distance Measurer  1 x English Manual      

Quick and easy to use Get acurate measurements every time Can be used indoors & outdoors, Current temperature display feature Foot/Meter function button Area, volume, addition, subtraction calculation Backlit LCD screen Auto stop: switches off if you do not press any key for 1 min Memory: allows you to measure and store 3 different measures Uses 1 x 9v battery (not included)      Specifications: Power 1 x 9V Unit of measurement Feet or Meters Accuracy ±0.5% ±1 digit(2~60ft) Resolution 0.01M or 1/2 Inch LCD With Backlight Working Frequency 40KHz Working Temperature 32°F to °F (0°C to 43°C) Range 0.50 to m     Package  1 x Ultrasonic Distance Measurer  1 x English Manual      

Quick and easy to use Get acurate measurements every time Can be used indoors & outdoors, Current temperature display feature Foot/Meter function button Area, volume, addition, subtraction calculation Backlit LCD screen Auto stop: switches off if you do not press any key for 1 min Memory: allows you to measure and store 3 different measures Uses 1 x 9v battery (not included)      Specifications: Power 1 x 9V Unit of measurement Feet or Meters Accuracy ±0.5% ±1 digit(2~60ft) Resolution 0.01M or 1/2 Inch LCD With Backlight Working Frequency 40KHz Working Temperature 32°F to °F (0°C to 43°C) Range 0.50 to m     Package  1 x Ultrasonic Distance Measurer  1 x English Manual      

Quick and easy to use Get acurate measurements every time Can be used indoors & outdoors, Current temperature display feature Foot/Meter function button Area, volume, addition, subtraction calculation Backlit LCD screen Auto stop: switches off if you do not press any key for 1 min Memory: allows you to measure and store 3 different measures Uses 1 x 9v battery (not included)      Specifications: Power 1 x 9V Unit of measurement Feet or Meters Accuracy ±0.5% ±1 digit(2~60ft) Resolution 0.01M or 1/2 Inch LCD With Backlight Working Frequency 40KHz Working Temperature 32°F to °F (0°C to 43°C) Range 0.50 to m     Package  1 x Ultrasonic Distance Measurer  1 x English Manual      

Quick and easy to use Get acurate measurements every time Can be used indoors & outdoors, Current temperature display feature Foot/Meter function button Area, volume, addition, subtraction calculation Backlit LCD screen Auto stop: switches off if you do not press any key for 1 min Memory: allows you to measure and store 3 different measures Uses 1 x 9v battery (not included)      Specifications: Power 1 x 9V Unit of measurement Feet or Meters Accuracy ±0.5% ±1 digit(2~60ft) Resolution 0.01M or 1/2 Inch LCD With Backlight Working Frequency 40KHz Working Temperature 32°F to °F (0°C to 43°C) Range 0.50 to m     Package  1 x Ultrasonic Distance Measurer  1 x English Manual      

Quick and easy to use Get acurate measurements every time Can be used indoors & outdoors, Current temperature display feature Foot/Meter function button Area, volume, addition, subtraction calculation Backlit LCD screen Auto stop: switches off if you do not press any key for 1 min Memory: allows you to measure and store 3 different measures Uses 1 x 9v battery (not included)   Specifications: Power 1 x 9V Unit of measurement Feet or Meters Accuracy±0.5%±1 digit(2~60ft) Resolution 0.01M or 1/2 Inch LCD With Backlight Working Frequency 40KHz Working Temperature 32°F to °F (0°C to 43°C) Range 0.50 to m     Package 1 x Ultrasonic Distance Measurer 1 x English Manual  

Ultrasonic Tape Measure / Distance Meter with Laser Pointer..!   Product Information   Constructed to work on the roughest and dirtiest jobsites, this ultrasonic distance measurement tool provides a reliable, accurate and fast way to measure distances and calculate the area and volume of any space. It’s perfect for determining ceiling heights, calculating length of pipe, cable, or estimating materials such as paint, drywall, flooring, etc. It’s extremely easy to use. Just press one button the distance will instantly show up on the LCD display, and simply by pressing a few buttons, areas and volumes can be calculated. Its blue backlit LCD display also makes it easy to read at the dimly lit or dark jobsites. This handy tool is perfect for both professional builders and DIY home handymen Features     Built tough to last     Easy to use     Addition and Subtraction function allowing you to add or subtract 2 measurements     Measure and store 3 different measurements     Metric or English measurement     91cm to 18 meters measuring range     High accuracy Manufacturers Specifications     Primary Function: Ultrasonic Distance Area and Volume Laser Measurement Device     Minimum Maximum Distance: 91cm to 18 meters     Working Temperature: 32 F to F     Laser: Class II Laser Product     Output: 1mw     Power Source: 1x 9V Battery     Dimensions: 155 x 70 x 32mm     Certification: CE, FCC, RoHS Package Contents     Ultrasonic Distance Area and Volume Measurement Meter     Instruction Manual

LOCAL STOCK* Handheld Ultrasonic Infrared Meter Laser Infrared Ray Distance Tester Descriptions: The ULTRASONIC DISTANCE METER + LASER POINTER is a perfect tool to quickly know the distance, area and volume of a room! It can measure distances in a straight-line from 0.5 to meters (1.5 ft to 60 ft). Your distance measurer transmits ultrasonic waves to a point you want to measure. Afterwards, it measures the time taken by the waves to reflect and then calculates and re-transcribes the distance.  Technical data: Measure distance from 0.5 to meters (1.5 ft to 60 ft)  Measure distance by transmitting Ultrasonic Waves With Laser pointer to locate the accurate position Calculation of area, volume, subtraction and addition. Water resistant Ideal for D.I.Y home owners and professional builders Measurement Unit: Feet or Meter LCD with Backlight Resolution: 0.01M or 1/2 Inch Power supply: 9V Battery (no included) Package includes: 1x Ultrasonic Distance Measurer   Click here to view all our stunning items

6 Waves Double Speakers Ultrasonic Pest Animal Repeller Outdoor Electronic Repe Package weight: 0.24 kg Specification: Name Pest Repeller Color Black Material ABS Power 10W Input Voltage AC 220V 50Hz Frequency 0-70KHz Applicable Area 100￣ﾎﾡ Product Size 11 x 7 x 4 cm / 4.33 x 2.76 x 1.57 inch (appr.) Plug China National Standard Plug Features: The equipment is sufficient to meet the needs of a family. With 2 speakers to dispel the pests in all directions. The effective coverage of insect repellent is about 100 square meters. Can drive away mice, squirrels, cockroaches, ants and insects from home. Safety for human and pets, the ultrasonic waves are harmless to people and pets. The 0-70KHz ultrasonic keep changing to avoid mice adaptation to a certain frequency. Button Operation: ￢ﾜﾪ Mode Switch Upper - drive mode (drive lamp is on) Lower - pest control mode (de-worming light) ￢ﾜﾪ Strength Switch Upper - wave band 1 drive mode (silent) Medium - wave band 2 drive mode (whisper) Lower - wave band 3 stripping mode (loud) Warm Reminder: The 220V 50Hz AC power system must be confirmed before use. You will see the effect after using it. However, after several weeks of continuous use, the effect will be better. Indoor use only. Do not use the device outdoors, do not put it in a high temperature and high humidity environment. Package Included: 1 x Pest Repeller 1 x Instruction Notice: Please allow slight dimension difference due to manual measurement. Please consider the actual sizes in the listing as the pictures are generally enlarged to show detail. There might be a little color difference due to the monitor, camera or other factors, please refer to the physical item. Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully. Click here for more deals 6 Waves Double Speakers Ultrasonic Pest Animal Repeller Outdoor Electronic Repe 6 Waves Double Speakers Ultrasonic Pest Animal Repeller Outdoor Electronic Repe

Overview The automatic control for the molten steel level of the mold is one of the key technologies of continuous casting production. It is very important to reduce the labor intensity of workers, improve production efficiency, improve the quality and output of casting billet, reduce overflow and breakout of steel and improve the management level of steelmaking and continuous casting. The molten steel is poured into the mold. In order to prevent overflow, the molten steel level must be kept stable. Otherwise, during the casting process, if the level will fluctuate too much, and slag will be involved, forming surface slag inclusion on the surface of the casting billet, affecting the quality of the billet. The test points out that the relationship between the level fluctuation and the depth of casting billet surface slag inclusion is as follows: The experience has shown that surface slag inclusions can be eliminated when the level fluctuation is within ±10mm. At the same time, if the level fluctuation is more than 10mm, the rate of longitudinal cracks on the casting billet surface is 30%. It means that the level fluctuation directly affects the surface quality of the casting billet. The principle of the system The eddy current type molten steel level gauge is the key to the system. The system operates reliably and has excellent performance: high temperature resistance, strong anti-interference ability, fast dynamic response (lag time 0.10s), high detection accuracy (±05mm), and large measurement range (0-150mm). The selected electromagnetic field frequency ensures that the level detection probe only detects the level change of the mold and does not detect the mold flux or steel slag layer. The system has the advantages of simple operation and no radiation protection problems. The system is insensitive to argon blowing, and its sensors can be mounted on the tundish car or on the platform. The sensor is cooled by compressed air during use. The principle is shown in the figure A high-frequency exciting winding is installed above the molten steel surface of the mold. The high-frequency magnetic field generated by the high-frequency exciting winding induces eddy currents on the molten steel surface to form a magnetic field. The magnetic field generated by the induced eddy current is in the opposite direction to the magnetic field generated by the high-frequency exciting winding, which changes the impedance of the high-frequency exciting winding. Under the condition that the winding material and structure, steel grade, temperature remain unchanged, the coil impedance change only has a single-value function relationship with the height of the molten steel level. As long as the impedance change of the high-frequency winding is detected, the change of the molten steel level in the mold can be converted. The components of the system Continuous casting mold level automatic control system is composed of eddy current tyoe molten steel level gauge, controller and digital actuator for adjusting the opening of tundish stopper. The detection end of the mold level automatic control system is ① eddy current displacement sensor, which uses the eddy current mutual inductance effect between the energized coil and the metal conductor to detect the distance. The effective signal of the eddy current sensor is amplified and linearized by the circuit of ② mold level gauge, which converts the 0-150mm change in the molten steel level of the mold into a standard signal of 4-20mA.DC, and then transmits it to the ③ control computer to complete data processing and system control functions. We can also control the actuator manually and automatically through the ④on-site operation display control panel, and the opening of the stopper is controlled by the ⑤ actuator to realize the automatic control of the molten steel level. 1 Eddy current sensor; 2 mold level gauge; 3 control computer; 4 On-site operation display control panel; 5 digital actuator; The control principle of the system The system can be set to four control modes: automatic, semi-automatic, manual and motor clutch. The automatic mode is the closed-loop control system of the molten steel level, and control the opening of the stopper by the digital actuator; the semi-automatic mode uses opening degree setter and digital actuator to set the opening of the stopper manually; the manual mode is to open and close the button directly to control the opening of the stopper; the motor clutch mode is quickly changed from any of the above control methods to manual stopper operation. The functions of the system also include: display and record of molten steel level, nozzle opening and casting speed; setting of molten steel level and nozzle opening; alarm of molten steel level at limit value etc. In addition to taking the detection of molten steel level as the main feedback signal of the control system, the control system also considers various interference factors that have an impact on the level control. These interference factors include: 1. The influence of the change of the flow characteristics on the control system after the melt loss of the stopper 2. The influence of the weight change of molten steel in the tundish on the control system 3. The influence of the change of the casting speed of the continuous casting machine on the control system 4. The influence of the mold width change (the mold width is adjustable) on the control system 5. The influence of the vibration frequency and amplitude of the mold on the molten steel level gauge The function and software implementation In order to overcome these disturbances, the mold level control strategy adopts PID control. And on the basis of PID control, self-adaptive correction and feedforward control are introduced to form an advanced control system. The level control is the main loop, and there is a proportional gain of the main loop controller. According to the self-adaptive correction of the mold width change and feedforward compensation of casting speed, so as to further reduce and eliminate liquid level fluctuations caused by mold width adjustment and casting speed changes. In order to reduce the frequent action of the stopper, the system adopts the intergarting time change of the controller, and automatically selects a longer intergarting time when the molten steel level fluctuates lightly. And the system will choose a shorter intergrating time when molten steel level fluctuates greatly. Thereby, the fluctuation of the controlled object caused by the frequent action of the stopper rod is suppressed. In the signal processing of molten steel level gauge, an appropriate filtering link is added and the vibration frequency synchronous filter is used for filtering processing, which can overcome the interference of mold vibration frequency and amplitude variation.

The ARL5000 Series is a radar level transmitter particularly suited for non-contact level measurement and is characterized by 26 G high frequency microwave pulse. The measurement can reach the distance of 70 m and is not affected by the influence of noise, vapor, pressure, dust, gas volatilization etc. With excellent anti-interference ability, it can work effectively in harsh environments. Equipped with a new micro processor and optimized antennas, ARL5000 is more ideal in velocity signal analysis, processing capacity, measurement with stability and accuracy. It is perfect for level measurement control with simple structure and easy installation. FEATURES Anti-interference of noise, vapor, dust, foam, vacuum, etc Shorter wavelength, better reflection on inclined solid surface Non-contact radar, free of wear and pollution Small beam angle & focus energy to enhance anti-inference ability and radar echo High frequency, ideal for the measurement of solid and dielectric constant Measuring distance up to 70 m (230 ft), high accuracy of 3 mm

Overview The width measuring system adopts dual industrial CCD cameras to proceed the online measurement of the steel plate on the roller bed by using the principle of stereo vision technology, and combines the high-speed digital signal processing technology and programming software to process the signals accordingly, and displays the relevant data and measurement curves, so that we can realize precise control of the steelmaking process during production. The system realizes the width measurement of the slab through the line scan cameras installed on both sides of the gantry slab, and the measurement data is transmitted to the host system through the optical fiber. Accurately calculate the actual width of the slab and the width deviation of the slab from the data collected by the linear array CCD camera with up to 8K pixels and the relative position of the double linear array CCD cameras installed on site. Then we can the actual parameter data and allowable deviation parameters of the slab by using the host system software part, so as to realize the alarm control. The measuring principle of the system The slab/strip width measuring system is mainly composed of a hardware system and a software system. The hardware system includes two line scan cameras which can scan and image for the casting billet, and the arithmetic unit calculates the absolute position and width of the casting billet by the measurement data collected by the line scan cameras. If a color camera is used, the temperature of the slab can be measured at the same time and transmitted to the host system of the width measuring device. The software in the host system calculates the actual width of the slab and the width at room temperature according to the data of the arithmetic logic unit, and displays the relevant data and change curve, then alarm according to the deviation threshold set by the software system or manually. The software system is mainly used to analyze and process the measurement data collected by the hardware system, display the casting billet data analyzed by the software through the display panel, and send control and alarm to the hardware system instruction. When measuring with a line scan camera, the width measuring device uses two cameras to measure the object at the same time from different angles. The two cameras are like human eyes, which can form stereo vision, so that the sufficient information can be got to judge the distance of the measured object. Correcting and eliminating the effect of distance changes on measurements. From the positions of the two edges of the measured object in the two cameras and geometric derivation, the positions P1(x1, y1) and P2 (x2, y2) of the strip edge in the X-Y coordinate space can be calculated, and the width of the measured object is the straight-line distance between P1 and P2 W=|P1P2|=√ [(x1-x2)^2+(y1-y2)^2] The features of the system It can effectively identify and compensate the beating, inclination, side deflection and profile of the tested plate; Three-layer high temperature protection of air-cooled, water-cooled and outer interlayer asbestos; Moving image linear noise correction technology, electronic exposure technology; With shock-absorbing installation design to reduce measurement errors; The software has self-diagnosis function; Full digital detection, automatic calibration system; Unique optical vibration compensation technology; High measurement accuracy and fast response; Using optical fiber signal transmission; The technical parameters of the system Measuring distance: 2m-10m (according to the on-site environment) Measuring range: 0.05m-40m Resolution: ±0.01mm Repeatability accuracy: 0.05mm Measurement output frequency: 30Hz (adjustable) Laser class: 2 (IEC60825-1:2014) Protection class: IP65 Camera pixel: 8K The measurement range of temperature : 0℃-1200℃ Working temperature: -20℃-60℃

Overview： This product is a new type of mold copper plate surface cladding detection equipment. The equipment adopts a high-precision and high-sensitivity laser ranging sensor, which scans the copper plate of the mould by scanning a laser line with a fixed width, and returns the measurement data in real time. After modeling and analyzing the data, the upper computer gives the wear data of the mold copper plate, as well as the data of surface cracks and surface roughness. The host computer software intuitively reflects the surface profile of the detected mold and cladding thickness deviation and other data to the user in the form of data sheet, data curves and mold 3D model diagrams, providing a true and reliable theory for on-site operators to maintain the mold. The mold surface cladding detection equipment is a high-precision instrument, which includes high-precision laser ranging sensors, two digital servomotors, encoders, horizontal sliding screws, vertical sliding screws, and calibration consoles, controllers and other components. The equipment has many advantages such as high accuracy, strong stability, convenient installation and strong observability. It is suitable for mold surface cladding detection, surface flatness analysis, surface flaw detection, taper measurement, etc. It is also suitable for round billets, square billets, slabs, special-shaped billets, etc., widely used and powerful. The composition of the system： 1. The mold surface cladding detection equipment is equipped with: data processing and display unit, horizontal motion mechanical power output unit, vertical mechanical power output unit, instrument motion control unit, laser measurement sensor, and instrument bracket. 2. Data processing and display unit: used for data acquisition and storage, system equipment control, parameter configuration, height display of the descent, start and stop control, etc. 3. Horizontal motion mechanical power output unit: the digital servo motor in the horizontal direction controls the sensor to move in the horizontal direction, so that the sensor can scan the horizontal inner cavity wall of the mold copper plate to detect data. 4. Vertical mechanical power output unit: the digital servo motor in the vertical direction controls the sensor to move in the vertical direction, so that the sensor can scan the vertical cavity wall of the mold copper plate to detect data. 5. Instrument motion control unit: It is used to control the motion scanning of the motor, and the running speed, running track, and control mode of the motor can be configured through parameter settings. 6. Laser measurement sensor: The laser displacement sensor adopts the principle of laser triangulation. The laser transmitter shoots the visible infrared laser to the surface of the measured object through the lens, and the laser reflected by the object passes through the receiver lens and is received by the internal line array image processing sensor. According to different distances, the corresponding positions of the light spots received on the line array sensor are also different. According to the angle of this reflection, the distance between the actual objects can be calculated by calculating the distance of the sensor spot. 7. Instrument bracket: The mold surface cladding detection equipment need to be placed directly above the mold when it is in use, and it is required to be fixed firmly without displacement vibration during the measurement process to ensure the measurement accuracy. The parameters： Detection instrument service life: ≥5 years; Detection instrument reliability: more than 98%; Detection range: 60~1000mm (customizable) Detection accuracy: 0.01mm Spot diameter: 1.0x1.5mm (spot scan), 1.0x20mm (line scan) Falling pace: 1~20mm/step Single measurement time: less than 2min Power supply: DC24V Operating temperature: -20~80℃ Equipment warm-up time: 3~5min Shock resistance: 50G (X, Y, Z axis) Vibration resistance: 10Hz~5Hz (amplitude 1.5mm, each 2 hours in X, Y, Z axis)