Ultrasonic distance/level sensors are widely used in the industrial field, and their unique principles and technical characteristics bring significant advantages in various aspects:

1. Non contact measurement:

Core advantage: Distance can be measured without physical contact with the object being measured.

Application value:

Protect sensors and targets: avoid wear and damage, extend sensor life, especially suitable for measuring fragile, soft, high-temperature, corrosive or moving objects (such as rotating drums, products on conveyor belts).

Non interfering measurement: Will not apply pressure or change the state of the target being measured (such as not disturbing the liquid when measuring the liquid level).

Hygiene requirements: Avoid exposure to contamination risks in industries such as food, beverage, and pharmaceuticals.

2. Good cost-effectiveness:

Relatively inexpensive: Compared to non-contact solutions such as laser rangefinders (LIDAR) or high-precision radars, ultrasonic sensors typically have lower purchase and maintenance costs.

Outstanding cost-effectiveness: In a wide range of applications that meet medium precision and distance requirements, its cost advantage is very obvious, making it suitable for large-scale deployment.

3. Strong adaptability to harsh environments:

Not affected by light: Ultrasonic sensors can still work stably in environments where optical sensors (such as lasers, infrared) fail or their performance decreases, such as in darkness, direct sunlight, smoke, dust, etc. This is common in factory workshops, mines, warehouses, etc.

Penetration ability: Ultrasonic waves can propagate in a certain concentration of dust, mist, and steam. Although their performance may be degraded, they are more adaptable to these environments than optical sensors.

Not sensitive to color and surface characteristics: regardless of whether the target object is black, white, transparent (such as glass, liquid), reflective (such as metal, mirror), or irregular rough surface (such as wood, fabric), as long as it can reflect sound waves, it can usually be effectively measured. This is a significant advantage over optical sensors, which are susceptible to color and reflection interference.

4. Moderate and practical measurement range:

Covering common requirements: The typical measurement range of industrial grade ultrasonic sensors ranges from a few centimeters to tens of meters or even tens of meters, which can meet the needs of distance, position, liquid level, height, and thickness detection in the vast majority of industrial sites (such as material level, stacking height, robot positioning, vehicle detection).

5. Medium precision meets most applications:

Strong applicability: Although the accuracy is usually not as good as laser interferometers or capacitive sensors, their millimeter to centimeter level accuracy is completely sufficient for a large number of industrial process control, position detection, liquid level monitoring and other applications (such as tank liquid level, presence/absence/position of conveyor belt objects, roll correction, robot collision prevention).

6. Relatively simple implementation:

Easy to install and integrate: The structure is usually not complex, and installation and debugging are relatively simple. Modern ultrasonic sensors often provide multiple standard outputs (analog 4-20mA/0-10V, switch PNP/NPN, digital RS232/RS485/IO Link, Modbus), which facilitate integration with industrial control systems such as PLC, DCS, SCADA, etc.

7. Low power consumption:

Energy saving: Usually low power consumption, especially suitable for portable or remote devices powered by batteries (such as wireless sensor network nodes, AGV/AMR collision avoidance).

8. High security:

Harmless: The sound wave energy used is very low, harmless to the human body and the environment (compared to lasers, X-rays, etc.), and there are few safety restrictions for use.

Key application advantage scenarios:

Liquid level measurement: tank (water, chemicals, oil products, food raw materials), river/canal water level. The advantages are non-contact, suitable for steam/foam and low cost.

Material level detection: height of solid particles and powders in the silo and hopper (such as grains, coal, plastic particles, cement). The advantages lie in non-contact, adaptability to dusty environments, and insensitivity to material color/shape.

Object presence/position detection: counting, determining the presence or absence of objects on the conveyor belt, and locating their positions; Object detection and anti pinch for automatic doors and garage doors; AGV/forklift collision prevention. The advantages lie in non-contact, adaptability to complex lighting, and low cost.

Height/thickness measurement: Stack height detection (pallets, rolls), sheet thickness (non-contact, requiring reflective plates). The advantage lies in non-contact and adaptable surface characteristics.

Distance control: Position feedback in crane collision prevention, mechanical arm end positioning control, and winding/unwinding tension control. The advantage lies in non-contact and medium precision that meets the requirements.

Filling control: Detect the liquid level height inside the bottle/can to achieve precise filling (especially in transparent containers where advantages are obvious). The advantage lies in non-contact and adaptability to transparent objects.