1.Measurement principle
During the distance measurement process, ultrasonic signals are
emitted by an ultrasonic probe. After being reflected by a liquid
or other solid medium, the signals are reflected back and received
by the same probe. By measuring the time difference between the
emission and reception of the ultrasonic waves, the level
measurement is achieved. The relationship between the ultrasonic
transmission distance (L), the speed of sound (v), and the
ultrasonic transmission time (t) can be expressed by the formula:
The basic calculation formula for ultrasonic ranging is as
follows:L = (v × t) / 2
L: Distance from the ultrasonic probe to the measured material
surface. Unit: meter (m);
v: Sound velocity value after temperature compensation. Unit: meter
per second (m/s);
t: Travel time of the sound wave within the measurement range.
Unit: second (s)
2.Product Description
The multi-beam underwater ultrasonic ranging sensor is a type of
multi-beam ultrasonic ranging device that extends the ranging
principle of ultrasonic self-emission and self-reception. It
utilizes a software-implemented round-robin testing method with
multiple transmissions and single reception, enabling distance
measurement in multiple directions. The coordinated testing across
multiple directions achieves the functions of underwater obstacle
avoidance and underwater distance measurement. The sensor can store
the detected data in its internal chip registers and communicate
with the host computer via the Modbus protocol. It allows
adjustment between passive and active data upload modes.
3.Product Features
l Multi-channel round-robin testing
l Fast response speed and high precision
l Transducer protection rating: IP68
l Equipped with TTL communication, supporting readable and modifiable
data
l 4-pin aviation plug connector for easy installation
l Wide voltage input: 10.8VDC～26.4VDC
4.Product Applications
l Position detection and distance detection
l Obstacle avoidance and collision prevention detection for
underwater robots
l Distance-setting application for underwater robots
5.Technical Parameters
General Parameters | |
Blind Zone | < 200 mm |
Detection Range | 200~3000 mm |
Transducer Frequency | Approximately 400 kHz |
Electrical Characteristics | |
Operating Voltage | 10.8VDC~26.4VDC, with reverse polarity protection |
No-load Current | ≤30mA |
Voltage Drop | ≤2.5V |
Startup Delay | <1000ms |
Output Characteristics | |
Output Type | Standard TTL output (Modbus-RTU protocol) |
Rated Working Current (I_g) | ≤60mA (24V), with short-circuit/overload protection |
Repeatability Accuracy | ±0.5% |
Accuracy | ±0.5% |
Environmental Temperature | |
Operating Temperature | -20~60°C |
Storage Temperature | -20~60°C |
Mechanical Characteristics | |
Output Connection Method | GX12 4-pin connector (aviation plug connection) |
Sensor Fixing Thread | M6*20 (adjust length according to installation) |
Protection Class | Sensor: IP68 |
Mass | Approximately 400g |
Material | Sensor: PC |
Compliance with Standards | |
Standard | GB/T 14048.10 - 2016 |
