The tape produced on PZPS is used for magnetic recording in “black boxes”

Magnetic recording is a technology that has been widely used in various fields, including aviation, where flight recorders (“black boxes”) are a key tool for recording flight data and storing valuable information for investigating accidents and incidents. In this article, we will look at the magnetic recording process used in black boxes and talk about the features of the production of magnetic tapes.

How does magnetic recording work?

Pulse signals in black boxes are magnetically recorded as follows:

1. A pulse signal containing flight information is fed to the recording head.
2. This head creates a magnetic field that changes according to the waveform.
3. Then the magnetic field of the recording head magnetizes the ferromagnetic carrier material — the magnetic tape.
4. A sequence of magnetic domains corresponding to the pulse shape is created on the surface of the tape.
5. When the recording is played back, the reading head passes over the magnetized areas, creating a pulse signal.
6. This signal is amplified and fed to the system output, ready for further analysis.

After extraction flight recorder the data from the tape is read and analyzed by experts, which makes it possible to identify and understand the reasons for the events that have occurred.

The process of recording on metal magnetic tape in “black boxes” is as follows:

1. First, information is digitally recorded on a solid-state storage device, such as a flash memory.
2. This digital data is then converted into an analog signal, which is a changing magnetic field.
3. This magnetic field magnetizes tiny particles gland or nickellocated on the surface of the metal tape.

In the event of an accident or incident, the data tape remains virtually unharmed, as it is stored in a metal case that can withstand extreme loads, including 30 minutes of exposure to an open flame and a month's stay in water up to 6,000 meters deep. This protection ensures the integrity of information for further analysis by experts.

Material for magnetic tapes manufactured by PZPS

The magnetic recording tape is made of EP-298 precision alloy. This material was developed in Russia in the 1990s and became a pioneer among domestic alloys used in aviation.

EP-298 has a unique chemical composition that provides high strength and corrosion resistance at temperatures up to 800-900°C. This magnetic-hard alloy provides a tape with a thickness of about 0.015 mm with the necessary properties for storing information in extreme conditions.

Despite its outstanding properties, EP-298 has several disadvantages, including high production costs and processing complexity. However, its use in “black boxes” ensures reliable and durable data storage in extreme conditions.

The production of magnetic tape is a thorough and high-tech process. Specialized machines and equipment used to create EP-298 precision alloy tape make it possible to provide the necessary characteristics for magnetic recording.

For questions about purchasing EP-298 cold-rolled strip and others precision alloys please contact us at specified phone or leave applications on the site. Our specialists will contact you and answer all your questions in detail.

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