KUS-W33 Underwater Obstacle Avoidance Sensor
Introduction
Ultrasonic waves are emitted from the Underwater Obstacle Avoidance Sensor surface. During propagation, when they encounter an interface between different media or an obstacle within the same medium, they are reflected and received by the sensor.
Because the circuit knows the time of transmission and the time of reception,
The distance from the ultrasonic wave to the interface or the obstacle is calculated as follows:
Distance = travel time x speed of sound in the medium/2
The unit of distance is meters, abbreviated as m;
The unit of sound speed is meters per second, abbreviated as m/s;
The unit of propagation time is seconds, abbreviated as s.
Because the speed of sound in liquids or solids is directly related to temperature, temperature compensation is required in specific locations to determine the specific speed of sound in meters per second based on different temperatures.
Dimension
Application Fields
| Parameter | Specification |
|---|---|
| General parameters | |
| Detection range | Water Temperature: 0°C to +60°C 1MHz (measured directly in clean water): ≤8000mm 1MHz (measured in clean water through a 3mm thick steel plate): ≤2000mm 2MHz (measured directly in clean water): ≤3000mm 2MHz (measured in clean water through a 3mm thick steel plate): ≤1000mm |
| Operating frequency | 1MHz operating frequency: 1MHz ± 100KHz; 2MHz operating frequency: 2MHz ± 150KHz; |
| Blind area | 1MHz (measured directly in clean water): ≤100mm; 1MHz (measured in clean water through a 3mm thick steel plate): ≤200mm; 2MHz (measured directly in clean water): ≤50mm; 2MHz (measured in clean water through a 3mm thick steel plate): ≤100mm; |
| Electrical characteristics | |
| Power supply range | DC 11.0-26.0V, with reverse polarity protection |
| Operating current | No-load current ≤15mA, rated operating current ≤100mA |
| Voltage drop | Required current <2.5V |
| Startup delay | <5.0s |
| Power source | Powered by pure battery or AC-DC switching power supply |
| Power requirements | No electromagnetic interference, ripple <1.0% |
| Output characteristics | |
| Output type | The standard configuration includes one RS485 output, using the Modbus-RTU protocol. |
| Optional output | One 4-20mA output, which cannot be used simultaneously with the RS485 output. |
| Repeat accuracy | ±0.5% (in clean water at room temperature) |
| Measurement accuracy | ±0.5% to 1.0% (in clean water at room temperature) |
| Environmental requirements | |
| Cable length | The standard range is 2 meters ± 0.3 meters |
| Process pressure | The short version has a maximum water pressure of 50 meters (when the sensor is submerged in water) The long version has a maximum water pressure of 50 meters (when the sensor is submerged in water) |
| Storage pressure | Standard atmospheric pressure |
| Process temperature | -20°C to +60°C (the measured liquid must not solidify or must be in a colloid state) |
| Storage temperature | -40°C to +85°C |
| Storage humidity | 0 to 95% RH, non-condensing |
| Mechanical characteristics | |
| Casing material | Aluminum or PPSU |
| Outlet type | 4-core shielded cable |
| Cable length | 2m ± 0.30m |
| Dimensions | See drawing for details |
| Protection level | IP68 |
