Core Tip : As people's attention to wearable devices increases, everyone has higher requirements for user experience. How to strengthen the connection between people and the surrounding environment becomes crucial. Situational awareness came into being. Is situational awareness one of the most exciting new user experiences for wearable devices? Let's come to see each other... "contextual awareness" is about to become one of the most exciting new user experiences for wearable devices. It occurs when a mobile device carried or worn by a user perceives a surrounding situation and presents information, alerts, or controls and controls other devices according to a particular environment. This new experience will affect how users view the world, changing users' interactions with other types of screens, and will generate more new screen types in the future. New forms of personal screens, such as smart glasses and smart watches, have recently sprung up. A screen that is suitable for the user to wear will become more natural and personal. It is not like a smartphone that the user carries with him, because it is an extension that is more like a user. Therefore, when the user looks at the smart glasses platform, it is like seeing the future, at least seeing the future of the mobile platform. Through smart glasses, images can be projected directly into the user's eyes, suspended in the user's view of the real world. This combination of reality and virtual reality will create a world like the one in Alice in Wonderland that has never changed before. The most likely primary application for Augmented Reality (AR) will be Mobile Location Services (LBS). Relevant descriptions and information about the user's current environment, a museum display, buildings, and products that the user is watching or talking about (which is actually a little creepy) will appear in the blink of an eye. Networked smart glasses provide background data for those who meet with the user. Major mobile phone manufacturers have applied for patents related to context-aware methods. The current construction operations are still in the early stages of development, but they all point to the future of augmented reality. Augmented reality is everything that creates a more natural interaction with the digital world in the analog world. A simple situational awareness application may include a mobile phone that automatically recognizes what the user is doing and proposes options and services based on current needs. For example, try to imagine a smarter Siri voice assistant that knows where you are and suggests what you might want to do. Now imagine that your phone may have mastered your specific steps while you are walking, and automatically locks when it detects that someone else might take your phone away, until the user is authenticated. A smart phone like this is already available, which keeps the screen open when it comes into contact with the user's eyes. These new platforms offer many new opportunities to innovate in trends such as miniaturization, power management, connectivity, sensing and control. The requirements are directly at the hands of semiconductor innovators, most notably the people who develop power products. Industrial design is the most critical part of wearable products such as smart glasses. These new form factors will put a lot of pressure on the physical design of the product, so the power layout will become more complicated. So far, the trend in smartphone design has been to collect power modules through the same power management chip (PMIC). However, as power functions continue to be dispersed in innovative configurations, the monopoly of this PMIC begins to be challenged. The functionally dispersed PMIC begins to be called a miniature PMIC. These micro-components have emerged in the concept of modular handsets, such as those from ZTE and Motorola, as well as other companies in the future. While these are still innovative and experimental concepts, they are pointing to a distributed architecture that is more suitable for tomorrow's wearable devices. Original English source EE TImes, compilation: Susan Hong About situational awareness Context Awareness technology originated from the study of so-called ubiquitous compuTIng, first proposed by Schilit in 1994. Situational awareness simply means that a computer device can "perceive" the current situation through sensors and related techniques. As we all know, one of the difficulties in user research and user experience design is to understand the context and environment in which users use the product. The current popular practice is to understand the user's situation through field research. The biggest problem with this approach is that the cost is too high, and the sample size is generally small. If you want to get a large sample of data, it will consume a lot of resources. The application of context-aware computing can obtain relevant information about the user's environment through sensors, so as to further understand the user's behavioral motives, etc. Especially for mobile Internet products, the sensor technology of mobile phones is of great significance to the research of users. At the same time, context-aware technology is a more important direction for user experience design. The so-called "active service design" means that computers (especially mobile computers) can be adaptively changed through context awareness, especially in the user interface. Provide users with push services. For example, the ringtone of a mobile phone is changed to a conference or an outdoor based on adaptive. Context-aware technology is not new. Many companies such as Microsoft, IBM, and Nokia have made major breakthroughs. It is only a matter of time before they are applied to products and research, especially in the design of user interfaces, which may be for the future. Design and paradigm have an impact. This is a major trend in the future development of mobile Internet.
Piezoelectric Ceramic Ring
Piezoelectric Elements For Inkjet Piezo Transducer Inkjet Piezo Transducer,Piezoelectric Vibration Tranducer,Piezoelectric Rings,Piezoelectric Elements For Inkjet Piezo Transducer Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com
Applications: ultrasonic vibration tranducer for inkjet printer
Vibration mechanism of inkjet printer:
Generally, it is composed of piezoelectric ceramics and driving rods. By high-frequency electric excitation, piezo ceramics produce high-frequency ultrasonic vibration (above 60 kHz or higher), which is transmitted to the driving rod and generates high-frequency micro-displacement (back and forth expansion) at its front end.
Piezo ceramics components features :
1. High vibration amplitude and can withstand higher power.
2. The product has high reliability, strong maintainability, and is not easy to break down or off-line.
3. The frequency can be adjusted in a wide range, generally within the range of 10KHz.
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The present Piezoelectric Elements For Inkjet Piezo Transducer is following :
Piezo rings OD4*ID2*2.5mm price USD1.20/pc, 2000pcs
Material: PBaS-4
Fr.: 694 KHz ±5KHz
K33: ≥0.55
Tg loss <0.5%
Ct 60pF ±12.5%
Piezo rings OD4*ID2*2.5mm price USD1.20/pc, 2000pcs
Material: PSnN-5
Fr.: 626KHz ±5KHz
K33: ≥0.57
Tg loss < 2%
Ct 53pF ±12.5%
Piezo rings OD6*ID2.5*2mm price USD1.50/pc, 2000pcs
Material: PZT-41
Fr.: 785 KHz ±5KHz
K33: >0.53
Tg loss < 0.5%
Ct 107 pF ±12.5%
Piezo Rod OD3*7mm price USD1.20/pc, 2000pcs
Material: PLiS-51
Fr.: 192 KHz ± 3KHz
K33: >0.62
Tg loss < 2%
Ct 18.7 pF ±12.5%