Working principle of capacitive sensor
Capacitive sensors are based on various types of capacitors as sensing elements, because the measured changes will lead to capacitor capacitance changes, through the measurement circuit, the capacitance changes can be converted into electrical signal output. Measure the size of electrical signal, can judge the measured size. That's how capacitive sensors work.
Advantages of capacitive sensors
Two years ago, singer Kelly Chen survived a few centimetres of laceration on her forehead when a bathroom mirror burst at her home. Bathroom mirror is the bathroom or toilet standard collocation, we can use every day intentionally or unintentionally, and frequency is higher than imagined, if quality problems occur burst, that is very terrible.
In the meantime, bathroom lens is opposite bathroom or toilet, the effect that can rise also is bigger than imagination. Believe many friends also have seen the article about toilet geomantic, and also should discover toilet geomantic and mirror concern more, accordingly, choose appropriate bathroom lens, appeared very important.
Bathroom mirror specifications differ, function diversiform
Category of bathroom lens on market is various, specifications differ, consumer appropriate undertakes collocation according to his be fond of and bathroom style. Bathroom lens can choose roughly from the following respects:
1. The design
Bathroom mirror has a variety of shapes, from square, rectangle, to prototype, elliptic, irregular form. But from formal point of view, bathroom lens has 3 kinds roughly, it is to hang wall type, floor type and be immersed in type respectively.
Hang wall type: this kind of bathroom lens needs to have the aid of a tool to be fixed on metope, mirror area is relatively moderate commonly, use at local projection normally, be like upper half body.
Floor type: clingy is on the metope with wide bathroom directly, can illuminate a whole body, use a face more extensive.
Embedded: this is the incidental bathroom mirror when buying bathroom cabinet, the advantage of this kind of bathroom mirror is to save space, and can form a very good integral whole feeling with bathroom cabinet.
Size of 2.
The bathroom lens that needs to choose proper size according to the size of the bathroom and style. Take the more common wall type as an example, the main sizes are 450mm*600mm, 500mm*700mm, 600mm*800mm, 700mm*900mm, 750mm*1000mm, and can also be customized according to requirements. When it comes to the bathroom of an ordinary family, it is recommended to buy 500mm*700mm or the height is not more than 500mm and the width is appropriately extended.
3. The border
Bathroom lens has bezel and have bezel cent. In general, bezel-free bathroom mirrors are better than bezel-free bathroom mirrors in terms of practicality and convenience. Bezel-less bathroom mirrors are easy to clean, modern and simple, and can save a lot of space for the bathroom. But if you can ignore the convenience, in fact, the thick and classic bathroom mirror with frame is also its attractive place, some unique products on the market, most of them are framed.
4. The mist
The bathroom is damp environment, after taking a bath, or in winter, fog is always full of whole mirror, because this can eliminate fog bathroom mirror arises at the historic moment. Many on market prevent mist bathroom lens is to pass touch lens to go up one specific button to realize thereby eliminate mist, also have a product is to open this function through induction, price of general brand prevent mist bathroom lens is more in 500 yuan to 1000 multivariate.
5. Additional features
A few bathroom lens besides above relatively outside basic function, still have all sorts of additional function. For example, smart bathroom mirrors that can focus their eyes at major bathroom and technology shows can display users' health, weather and even play music and videos. When choose and buy, the proposal does not look at certain not practical function, nevertheless the function of certain extremely human nature can consider, for example illume and induction. For example, panasonic's new smart mirror can preview what you look like after making up with the style you set.
Bathroom mirror actor actor looks so
1. Glass and bottom quality
The glass must be coated with a reflector on the back to form an image, and most mirrors on the market today are made of silver or aluminum. The two materials are quite different. Generally speaking, aluminum mirror is easy to oxidize and image whitening, so its life will be shorter. Silver mirrors, on the other hand, are not easily oxidized and can still image normally in wet conditions. Because the price of silver mirror is much higher than that of aluminum mirror, some businesses will make huge profits by counterfeiting silver mirror aluminum mirror, consumers should know how to distinguish:
Look at the reflection clarity
In general, the silver mirror is clearer than the aluminum mirror, and the light source reflection Angle is more standardized. Aluminum mirrors have a low reflectivity of about 70% and are prone to distortion in shape and color.
Look at the back coating
Scrape off part of the protective paint behind the bathroom mirror. If the underlayer is copper, it's silver. If it's silver, it's aluminum. Generally, the back coating of silver mirror is dark gray, and the back coating of aluminum mirror is light gray.
Look at paint activity
Silver is an inactive metal and does not oxidize easily, while aluminum is an active metal and oxidizes easily. Purchase, can be required to dilute hydrochloric acid contact, if the reaction is not obvious, it is proved to be silver mirror, if the reaction is obvious, it is proved to be aluminum mirror.
2. Imaging ability
The imaging ability of bathroom lens is excellent with clear, without deformation. You can use a distant linear object as a reference to observe the mass from multiple angles from the front, side and back. Good quality mirror appearance no bubbles, sundries, incomplete, discoloration spots and so on, when moving the line of sight, linear objects will not bend deformation.
3. The appearance of the
When bathroom lens of choose and buy, can observe its exterior charge for the making of sth. is fine. Generally speaking, the mirror with good quality is to see not to have bubble, impurity, discoloration, black spot, black edge from the appearance, the back must not have peeling, pinhole, impurity attachment, scratch, percolation, pitting and so on.
4. Water and rust resistance
Bathroom environment is moist, the bathroom lens with poor quality is put in among them for a period of time, appear very easily lens edge can appear rust, drop paint phenomenon. If you buy a bathroom mirror with a frame, you need to carefully observe whether the joint between the lens and the frame is tight. If the mirror has more exposed metal parts, you need to ask the specific material and confirm that it is rust-proof material before you buy it.
Installation Precautions
1. The bearing
There are two aspects to pay attention to: first, the bathroom mirror should not be installed in the position of the door, people will not be very awake when they get up, if they walk into the bathroom at the first sight of their own appearance, or they will be frightened; Two, do not install in the position of the window, because the environment outside the window is changeable, floating objects are easy to be blown by the wind, see will also affect the mood.
Height of 2.
The height of bathroom lens also is the problem that is worth discussing, if exorbitant, use with respect to inconvenience, if too low, the blank space between mirror and cabinet face is overmuch, can form disharmonious feeling. Generally speaking, end of bathroom lens bottom leaves ark face 200mm to 300mm advisable, if you feel use respect is no problem, be determined to want to stay 400mm above, appropriate is in the wall between mirror and ark face another buy a small thing if buy content wear, in order to fill redundant space.
Match 3.
Bathrooms and bathrooms in Chinese homes are usually small, so bathroom mirrors are used to create a sense of imaginary space, and they also brighten the bathroom due to the reflection of light. If you want to buy a frame bathroom mirror, it is suggested that choose light color department such as white, beige, the color easy to oneness and bathroom, not such as black, gray, brown the brunet department, because of space of toilet is negative, if use brunet department, is easy to make toilet extremely Yin, the owner and his family's wealth and health.