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Ultrasonic atomizer transducer

(1443 products available)

About ultrasonic atomizer transducer

Types of Ultrasonic Atomizer Transducer

Ultrasonic atomizer transducer comes in several types, each with unique applications and operating principles. These differences stem from the ultrasonic frequency ranges they employ, the design configurations of their components, and the intended use-case scenarios. Choosing the right transducer type depends on the specific requirements of the misting system or application, such as desired droplet size, fluid viscosity, and output capacity.

Plate Transducers

This type of transducer utilizes piezoelectric ceramic plates bonded to a metal disk or plate, usually constructed from stainless steel or aluminum. When the ceramic plate is electrified, it generates ultrasonic waves that are transmitted through the metal plate into the liquid. Also known as ultrasonic atomizing discs, users widely employ plate transducers in applications that require generating fine mist, like facial humidifiers and small- to medium-scale industrial atomization processes.

Cylinder Transducers

Cylinder transducers are piezoelectric ceramics configured in cylindrical shapes. These transducers produce focused ultrasonic waves, making them ideal for applications requiring deeper liquid penetration. Common uses include welding plastic joints and cutting soft materials like foam or rubber. While less common in misting applications than plate transducers, cylindrical transducers can be found in specialized systems that require a concentrated mist output.

PZT Ultrasonic Transducers

PZT ultrasonic transducers are made from lead zirconate titanate (PZT), a ceramic material with exceptional piezoelectric properties. PZT generates high-frequency vibrations when exposed to an electric current. These transducers are prized for their efficiency and ability to generate very fine mist. Users commonly employ them in medical nebulizers, industrial coating, and pharmaceutical spray-drying applications.

Ring Transducers

Ring transducers consist of piezoelectric elements bonded to a ring-shaped metal electrode. These transducers generate a circular wave pattern, spreading the mist more evenly across a wider area. People often use ring transducers in agricultural spraying systems to cover large fields or greenhouse interiors. They are also helpful in air fresheners and room humidifiers.

Industry Applications of Ultrasonic Atomizer Transducer

With their ability to efficiently disperse liquids into fine mist, ultrasonic atomizers have many industrial applications across multiple sectors, from agriculture to healthcare. Below are some common applications of ultrasonic atomizers.

Agriculture

Farmers and agronomists use ultrasonic atomizers in precision agricultural spraying systems to apply pesticides, herbicides, and fertilizers. The transducers create fine mist droplets that evenly distribute chemicals across large crop fields. This efficiency reduces chemical consumption, minimizes environmental impact, and ensures better nutrient absorption by plants. The ring transducers, in particular, are effective in covering extensive agricultural areas.

Pharmaceuticals

Medical devices like nebulizers rely on ultrasonic atomizers to deliver medication directly to the lungs, especially for patients with respiratory issues. The transducer converts liquid medication into aerosolized particles of the right size for inhalation, enabling more effective drug delivery. This is critical for treatments like bronchodilators or corticosteroids, where the mist penetrates deep into the lungs for targeted therapy.

Food and Beverage

In the food processing and beverage industries, ultrasonic atomizers enhance product quality and presentation. For example, they create fine mists of liquid smoke, oils, or marinades that coat food evenly without soaking it. Beverage makers also use them to atomize flavoring liquids onto cocktail foams, enhancing aroma and taste. These applications result in improved flavor distribution, texture, and visual appeal of food and drinks.

Cosmetics and Personal Care

The cosmetics and personal care industries use ultrasonic atomizers in products like facial misting devices, perfumes, and aerosol sunscreens. These transducers generate ultrafine mist that evenly applies active ingredients like hydration, healing, or sun protection. The fine mist allows deeper skin penetration and better product absorption. Moreover, the mist disperses evenly across the skin, resulting in a light, even application that enhances product performance and user experience.

Industrial Coatings

Industrial atomizers play a crucial role in coating applications, particularly when applying paints, adhesives, and other liquids. The transducers generate a fine mist that deposits a uniform layer of coating material on surfaces like metal, wood, or plastic. This technology improves coating efficiency, reduces wastage, and ensures consistency in finish. Ring transducers, for example, atomize liquid coating materials for larger surface areas in industrial environments.

Product Specifications and Features of Ultrasonic Atomizer Transducer

Understanding the key specifications and features helps users select suitable atomizers for their intended applications. Below are some of the key specifications.

Technical Specifications

  • Output Power: Ultrasonic atomizers typically range from 15 to 120 watts, depending on the model. Higher wattage transducers create more mist, suitable for industrial or agricultural applications requiring large volumes.
  • Operating Frequency: Most of these atomizers operate at frequencies between 1.7 and 2.5 megahertz. A higher frequency usually produces smaller droplets, ideal for pharmaceutical or cosmetic applications that require fine mist.
  • Water Depth: The recommended water depth for most atomizers is between 2 to 5 millimeters. This depth allows ultrasonic waves to propagate efficiently through the water and produce a steady mist.
  • Droplet Size: The droplet sizes generally range from 1 to 10 micrometers. Smaller droplets offer better diffusion and are commonly used for inhalers, agricultural sprays, and foggers. Larger droplets provide better penetration and are suited for industrial applications.

Key Features

  • Efficiency: Compared to traditional misting methods, these atomizers are more efficient. They produce finer droplets with less liquid, making them ideal for applications where precise liquid distribution is critical, such as in pharmaceuticals or agriculture.
  • Versatility: Ultrasonic atomizers can handle various liquids, from water and essential oils to industrial chemicals. This versatility makes them valuable across industries.
  • Low Noise Operation: These atomizers operate with minimal noise compared to mechanical misting systems. This feature makes them ideal for settings where noise levels need to be controlled, such as in healthcare facilities or quiet indoor environments.
  • No Moving Parts: Since the component works without moving parts, they require less maintenance and are more durable. The absence of mechanical nozzles also reduces the risk of clogging, ensuring consistent misting performance.

Choosing the Right Ultrasonic Atomizer Transducer

Several key factors come into play when selecting the right transducer for a misting project. Below are these factors for consideration.

Output Capacity

The output capacity of the transducer determines how much mist it can produce within a given time. A high-capacity transducer is ideal for large-scale operations like agriculture or industrial coating that require significant mist volume. Conversely, smaller-capacity transducers are sufficient for low-demand applications like personal care or indoor air quality.

Frequency

The operating frequency affects the droplet size. A higher frequency produces smaller droplets, which are essential for applications requiring fine mist, like medical nebulizers. On the other hand, lower frequencies generate larger droplets, suitable for fogging systems or industrial applications requiring heavier mist.

Fluid Type

The transducer must handle the fluid type being atomized, whether water, oil, or chemical mixtures. The PZT transducers, for instance, are ideal for high-precision atomization, such as in the pharmaceutical industry, where aggressive or viscous chemicals are commonly found.

Environment

One must consider the operating environment. Ring transducers, for example, are suited for outdoor or agricultural settings where durability and resistance to debris are essential. Plate transducers are ideal for indoor applications like air quality control, where space is limited.

Energy Efficiency

This factor is especially crucial for large-scale or continuous operations. The intensity of current flowing through the transducer in a plate humidifier influences its energy efficiency. Transducers designed with energy-saving features consume less power without sacrificing misting performance. This feature results in lower operating costs and reduced environmental impact, making them ideal for long-term use.

Q&A

Q1: What is the operating principle of an ultrasonic transducer?

A1: An ultrasonic transducer converts electrical energy into mechanical energy through piezoelectric ceramics. The ceramics vibrate at ultrasonic frequencies when an alternating electric current passes through them. These high-frequency vibrations create a pressure wave in the liquid, dispersing it as a fine mist or aerosolized particles.

Q2: Which liquid atomizers create the largest droplet size?

A2: Atomizers that utilize ring transducers produce the largest droplet size. These transducers are specifically designed for robust applications like agriculture and industrial coatings. In these applications, the atomizers need to handle viscous liquids and produce larger droplets that can settle effectively on outdoor surfaces.

Q3: Are ultrasonic atomizers easy to maintain?

A3: Ultrasonic atomizers are relatively easy to maintain due to their durable and robust designs. Many models have components, like the piezoelectric ceramics, that are resistant to wear and tear. Additionally, some atomizers come with self-cleaning mechanisms that help remove mineral buildup and residue. This feature reduces the need for frequent manual maintenance for several months at a stretch.

Q4: Can ultrasonic atomizers be used outdoors?

A4: Yes, people can use ultrasonic atomizers outdoors, especially if they have rugged components that can withstand outdoor conditions. The atomizers come with protective housings that prevent dust, debris, or moisture damage. These industries often use atomizers in agriculture, mining, and construction sites.

Q5: What are the common materials used to make ultrasonic atomizers?

A5: Manufacturers commonly make ultrasonic atomizers from stainless steel, aluminum, and plastic. Stainless steel and aluminum are commonly used for industrial applications where durability and resistance to chemical corrosion are critical. Plastic atomizers are suitable for lighter-duty applications.