LPS33HW is a water proof pressure transmitter. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

LPS33HW - water proof pressure sensor

31.07.2018

The new LPS33HWTR atmospheric pressure sensor from ST Microelectronics is a compact piezoresistive digital sensor with measurement ranges from 260 to 1260 hPa, which is equivalent to measuring altitude up to 10 kilometers.

The sensor has a ceramic housing and a metal pressure port. The rest of the board can be sealed with a rubber sealing ring. The design of the sensor allows you to create devices that can withstand immersion in water, because. the microcircuit itself can be subjected to pressure up to 10 atmospheres. To protect the sensitive element, the inside of the sensor is filled with a special gel.

The filler is resistant to various corrosive environments - the test showed the full performance of the sensor after exposure to salty sea water with a high content of chlorine and bromine. The test lasted 34 days, and each day the sensor was placed in liquid for 6 hours.

To work with the sensor, you can use the SPI or I2C interface. The measured parameters are available through a set of internal registers. Thanks to the built-in FIFO buffer, it is possible to increase the period of reading data by the host, while not losing intermediate readings. In the maximum power saving mode, when measuring pressure 1 time per second, the sensor consumes only 3 μA. Each sensor is individually calibrated during production, which guarantees the manufacturer's stated relative accuracy of +-0,1 hPa.

LPS33HW Features:

Watertight pressure sensor;
Measurement of absolute pressure from 260 to 1260 hPa;
Low current consumption (from 3 μA);
Overload capacity 20 times full scale;
Built-in temperature compensation;
Pressure data output 24 bits;
Temperature sensor 16 bit;
Data output frequency from 1 to 75 Hz;
SPI and I2C interfaces;
Built-in FIFO buffer;
Data ready interrupts, FIFO status, or pressure level;
Operating voltage from 1,7 to 3,6 V.

<< Back: Maxwell's Information-Eating Quantum Demon Created 31.07.2018

>> Forward: Large body of water discovered under the surface of Mars 30.07.2018

Latest news of science and technology, new electronics:

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Major risk factor for gambling addiction 07.05.2024

Computer games are becoming an increasingly popular form of entertainment among teenagers, but the associated risk of gaming addiction remains a significant problem. American scientists conducted a study to determine the main factors contributing to this addiction and offer recommendations for its prevention. Over the course of six years, 385 teenagers were followed to find out what factors may predispose them to gambling addiction. The results showed that 90% of study participants were not at risk of addiction, while 10% became gambling addicts. It turned out that the key factor in the onset of gambling addiction is a low level of prosocial behavior. Teenagers with a low level of prosocial behavior do not show interest in the help and support of others, which can lead to a loss of contact with the real world and a deepening dependence on virtual reality offered by computer games. Based on these results, scientists ... >>

Traffic noise delays the growth of chicks 06.05.2024

The sounds that surround us in modern cities are becoming increasingly piercing. However, few people think about how this noise affects the animal world, especially such delicate creatures as chicks that have not yet hatched from their eggs. Recent research is shedding light on this issue, indicating serious consequences for their development and survival. Scientists have found that exposure of zebra diamondback chicks to traffic noise can cause serious disruption to their development. Experiments have shown that noise pollution can significantly delay their hatching, and those chicks that do emerge face a number of health-promoting problems. The researchers also found that the negative effects of noise pollution extend into the adult birds. Reduced chances of reproduction and decreased fertility indicate the long-term effects that traffic noise has on wildlife. The study results highlight the need ... >>

Wireless speaker Samsung Music Frame HW-LS60D 06.05.2024

In the world of modern audio technology, manufacturers strive not only for impeccable sound quality, but also for combining functionality with aesthetics. One of the latest innovative steps in this direction is the new Samsung Music Frame HW-LS60D wireless speaker system, presented at the 2024 World of Samsung event. The Samsung HW-LS60D is more than just a speaker system, it's the art of frame-style sound. The combination of a 6-speaker system with Dolby Atmos support and a stylish photo frame design makes this product the perfect addition to any interior. The new Samsung Music Frame features advanced technologies including Adaptive Audio that delivers clear dialogue at any volume level, and automatic room optimization for rich audio reproduction. With support for Spotify, Tidal Hi-Fi and Bluetooth 5.2 connections, as well as smart assistant integration, this speaker is ready to satisfy your ... >>

A New Way to Control and Manipulate Optical Signals 05.05.2024

The modern world of science and technology is developing rapidly, and every day new methods and technologies appear that open up new prospects for us in various fields. One such innovation is the development by German scientists of a new way to control optical signals, which could lead to significant progress in the field of photonics. Recent research has allowed German scientists to create a tunable waveplate inside a fused silica waveguide. This method, based on the use of a liquid crystal layer, allows one to effectively change the polarization of light passing through a waveguide. This technological breakthrough opens up new prospects for the development of compact and efficient photonic devices capable of processing large volumes of data. The electro-optical control of polarization provided by the new method could provide the basis for a new class of integrated photonic devices. This opens up great opportunities for ... >>

Random news from the Archive

Quantum dots - lamps of the future 22.05.2012

Scientists from Vanderbilt University have increased the luminescence of quantum dots by up to 45%. This is comparable to the efficiency of some commercial phosphors. In the future, this will make it possible to use quantum dots as an economical, durable source of illumination.

Today, incandescent lamps are considered hopelessly outdated. The main task of scientists is the development of highly efficient economical solid-state lighting sources that emit white light that is pleasing to the eye.

One of the most promising lighting technologies is the use of quantum dots. These tiny cadmium selenide fluorescent particles can convert the blue light emitted by a cheap, bright LED into a warm white light with the same spectrum as an incandescent lamp. This sets quantum dots apart from compact fluorescent lamps and white LEDs, which create white light using monochromatic colors.

A common measure of the efficiency of lighting fixtures is luminous efficacy, measured as the amount of visible light (lumens) per watt of power consumed. An incandescent lamp produces about 15 lumens/watt, fluorescent lamps about 100 lumens/watt. White LEDs available on the market are from 28 to 93 lumens/watt.

Until now, quantum dots have lagged far behind traditional light sources in this indicator. However, scientists from Vanderbilt University managed to increase the light output by 10 times and reach a figure of about 40 lumens / watt. At the same time, their light source emits very high-quality white, and not monochromatic light.

This was achieved using an efficient ultraviolet LED, the addition of acetic acid and ultra-small quantum dots containing only 60-70 atoms. These quantum dots are so small that almost all of their atoms are on the surface of the particles, which allows the production of white light, which is usually generated precisely by the surface atoms of quantum dots.

Currently, scientists are working on increasing light output and creating prototypes of quantum lamps. The main problem with increasing the brightness is the appearance of a bluish tint, which is so annoying for people when using LED lamps. However, according to scientists, they know how to solve this problem.

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews