Little partner's exercise artifact — AMAZFIT Huami sports watch unpacking

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My friends around the world like trail running and are passionate about the marathons. They are basically the top 3 results. This sports watch is bought for sports use, little partners spent a long time, so feel that let me share this sports watch experience.

Reasons to purchase

What is fancy is the sports watch that Hua Mi produces, Hua Mi technology is the partner of millet ecological chain, so a variety of millet bracelets are handed over by Hua Mi. Since the bracelet is doing pretty well, there are certain strengths to being able to enter the top 5 in the global market. Little friends have been working for some time, so this long experience must be personal experience.

Appearance Gallery

One of the sports watches is not very good, the strap is easily corroded by sweat; the most important thing is that the strap will be slightly deformed with time.

[Sport Watch App]

The core function: sports, small partner is fancy to have cross-country running only choose

Of course, the essential function is the weather forecast function. This is a very useful function.

Data Center: Count the number of steps you took on that day

Heart rate monitoring: Contrast heart rate before and after exercise

If you do not want to bring a mobile phone to buy a Bluetooth headset can be used as MP3, very practical function

You can also support Alipay, but taking into account the issue of security, if you lose your watch and you have been stolen, you will lose more than a few hundred thousand.

Alarm reminding function

GPS calibration

Stopwatch, suitable for sprinting and playground running

Sleep Today: Statistics for a night's sleep

Training Center: Suitable for formulating training plans to enhance the performance of running

Himalayan FM, this little partner did not use how it is not clear what is the principle

Mi's App is suitable for starting linkage with smart devices of Mijia.

counter

Millet TV remote control, suitable for temporary solutions when no remote control can be found

There is also a map of Sogou which is basically disabled in the absence of a mobile phone, so the positioning of this map function depends on your mobile phone positioning.

On the back there are four contacts and the charging base can be used

[Sport Watch Mobile Client App]

Look at the effect picture is always more beautiful than the real thing

App function is very simple, more features still need to choose on the sports watch

experience feelings

Little friends like to run a marathon

One of the running marathon equipment

The third marathon took place in this marathon

to sum up

Nowadays, a dazzling array of smart devices is filling the market. It is really not easy to choose a sports watch that is very satisfying. It is very important to take into consideration the design, brand awareness, price factor, convenience and practicality of the operation. The basis of reference. For sports type smart device partners and I said that the cost is very high, especially when doing activities, 699 yuan can really be considered to start, in case there are coupons is also likely to offer 100 yuan discount.

advantage:

In the price of less than 1,000 yuan Huami sports watch can be said to be a cheap choice, beautiful design, convenient operation is also very intuitive and clear.

A variety of built-in sports mode options are available, with GPS positioning; Xiaomi's ecological chain cooperative companies understand Chinese needs better than foreign brands.

Disadvantages:

GPS positioning is obviously weak, but it must also be combined with mobile phones to assist in positioning and improving accuracy.

The functional support for Apple's mobile phone is less complete than that of an Android phone.

Lead Free Piezoelectric Elements

The Co-Al Co-doped Barium Titanate Lead-free Piezoelectric Ceramics was successfully developed by Yuhai company through repeated experiments. By Researching the influence of Co-Al Co-doping on the structure and properties of Barium Titanate-based piezoelectric ceramics, the formulation and preparation technology of Barium Titanate-based piezoelectric ceramics were optimized. Yuhai`s BaTiO3 was prepared by conventional solid-phase sintering method, with the piezoelectric constant d33 (>170pC/N), dielectric loss tgδ≤0.5% and mechanical coupling coefficient Kp≥0.34.

Barium titanate lead-free piezoelectric ceramics are important basic materials for the development of modern science and technology, which was widely used in the manufacture of ultrasonic transducers, underwater acoustic transducers, electroacoustic transducers, ceramic filters, ceramic transformers, ceramic frequency discriminators, high voltage generators, infrared detectors, surface acoustic wave devices, electro-optic devices, ignition and detonation devices, and piezoelectric gyroscope and so on.

Application: military, ocean, fishery, scientific research, mine detection, daily life and other fields.

China Patent of Yuhai company`s BaTiO3

Chinese Patent No.: ZL 2011 1 0126758.6

Name: Lead-free Barium Titanate Piezoelectric Material with Addition of Cobalt and Aluminum

Lead free piezo material BaTiO3			Lead-free Material
Properties			BaTiO3
Dielectric Constant	ɛTr3		1260
Coupling factor	KP		0.34
	K31		0.196
	K33		0.43
	Kt		0.32
Piezoelectric coefficient	d31	10-12m/v	-60
	d33	10-12m/v	160
	g31	10-3vm/n	-5.4
	g33	10-3vm/n	14.3
Frequency coefficients	Np		3180
	N1		2280
	N3
	Nt		2675
Elastic compliance coefficient	Se11	10-12m2/n	8.4
Machanical quality factor	Qm		1200
Dielectric loss factor	Tg δ	%	0.5
Density	ρ	g/cm3	5.6
Curie Temperature	Tc	°C	115
Young's modulus	YE11	<109N/m3	119
Poison Ratio			0.33

Piezo Element,Piezo Ceramic Elements,Piezoelectric Ceramic,Pzt Tubes

Zibo Yuhai Electronic Ceramic Co., Ltd. , https://www.yhpiezo.com