Product Description
GMP Drying Oven / Medicine Powder Drying Oven adopts noise elimination and thermal stable axial flow fan and automatic temperature control system. The entire circulation system is enclosed to make that the heat efficiency of the drying oven increases from 3~7% of the traditional drying oven to 35~45% of the present one. The highest heat efficiency can be up to 50%. The successful design of CT -C Hot Air Circulation Oven makes that the Hot Air Circulation Drying Oven in our country reach the advanced level in the world. It saves energy and increases the economic benefit.
Main Features
1. The heat source can be steam, electricity, far infrared, or steam+electricity. Customer can select one of the heating ways in accordance with practical conditions; 2.The temperature of operation: 50 ~ 140 °C for steam, Maximum temperature will be 150 °C; 3.50 ~ 350 °C for electricity or far infrared; 4. There are automatic and computer control systems for customer selection; 5. The normal pressure of steam will be 0.02-0.8MPa (0.2-8kg/cm 2); 6. The equipped power of electric heater will be 15kw Calculated with Model I and the operational power to be used will be 5-8kw/hr; 7. for special requirement, please indicate it in order; 8. The price of non-standard oven shall be discussed additionally; 9. If the operation temperature is more than 140 °C or less than 60 °C, please indicate it in order; 10. The size of drying trolley and tray is standardized. They can be exchanged each other; 11 The size of drying tray: 460 ×640×45(mm).
Characteristics
Most hot air is circulated in the oven. The Heat efficiency is high and the energy is saved. By using the forced ventilation function, there are adjustable air distribution plates inside the oven. The materials can be dried uniformly. The heating source might be steam, hot water, electricity and far infrared. With a widely selection. The whole machine is low in the noise. The operation is in balance. The temperature is controlled automatically. The installation and maintenance are easy. The application is wide. The machine can be used for drying various materials and is general drying equipment.
GMP Medicine Drying Oven, GMP Drying Medicine Oven, GMP Pharmaceutical Drying Oven, Drying Oven Changzhou Ruide Drying Engineering Technology Co., Ltd , http://www.rddryer.com
VR:
Before talking about those VR nouns, first explain the VR, VR is the abbreviation of English Virtual Reality, Chinese is translated into virtual reality, people form a 360-degree immersive virtual environment through the use of computer graphics systems and headsets. And interact with the above virtual environment through sensor devices or other accessories to bring a totally different sensory experience. Because this kind of experience is very real and incredible, it is also called Spiritual Technology. The following video is a good example of what it means to wear VR.
This technique was first proposed by Lanier, the founder of the VPL company in the United States in the 1980s. In 1993, the technology was extremely hot. However, due to the technological flaws, it gradually became oblivious until Oculus was faced with 20 books. With billion-dollar sky-high acquisitions, people discovered the huge profits of the market and began to scramble into it.
FOV:
We can see a parameter FOV (field angle) on both the cheap handset VR and the expensive PCVR. In the optical instrument, the lens of the optical instrument is used as the vertex to measure the object's image. The angle formed by the two edges of the largest range of the lens is called the field angle. The size of the field of view determines the field of view of the optical instrument. The larger the field of view, the larger the field of view and the smaller the optical power. In layman's terms, target objects beyond this angle will not be captured in the lens. In the display system, the angle of view is the angle between the edges of the display and the viewing point (eyes). 
In terms of VR experience, the larger the FOV, the less likely it is to cause dizziness and the more immersive (this can also be experienced in first-person shooter shooting games), so when purchasing a PC VR, We can definitely choose some big FOV products, but this does not apply to mobile VR, because if your VR device is too open and the screen size is too small, you will find the border of the phone during the experience. So as to reduce immersion, so when buying a mobile VR product must be optimistic about their mobile phone size and FOV size of the device before buying (above we also prepared a common mobile phone screen size fit FOV angle).
Object distance and interpupillary distance:
Object distance and interpupillary distance are also common adjustable devices when we purchase VR products. This is actually a very good explanation. The so-called object distance adjustment is to adjust the distance between the screen and the eyes, also called nearsightedness/ farsightedness adjustment, suitable for different spectacles. User. The interpupillary distance adjustment is to adjust the distance between the two eyes, the main role is to reduce ghosting, to see the top of the movement has in fact fully understood.
Refresh rate and number of frames:
In addition to the above-mentioned ones, the refresh rate is often mentioned when purchasing the headline, and once the refresh rate is involved, the product has its own screen, at least it is not a mobile VR product. The so-called refresh rate is the display refresh rate per second, 60Hz refers to the display refresh 60 times per second; the number of frames refers to the number of images per second transmitted by the graphics card, can also be understood as the number of refreshes per second graphics card (play LOL When the FPS in the upper right corner shows the number of frames, the more powerful the graphics card, the higher the number of frames, the better the picture stability, and the more straightforward it is, the screen determines the refresh rate, and the graphics card determines the number of frames. 
But because we still need to transmit our eyes through the monitor, if the number of frames exceeds the refresh rate of the screen, we will use the refresh rate of the screen as reference. For example, if we use the GTX970 graphics card to play LOL, the maximum number of frames will go to 400+, but the monitor refresh rate Only 60Hz, then the refresh rate we see with our eyes is only 60Hz. But once the performance of the graphics card is too bad and the number of game frames is too low, the picture will appear stuck, and in this Case , it is more likely to be dizzy. For VR devices, 60FPS is the minimum standard when playing games, so the minimum refresh rate for headshots cannot be lower than 60Hz.
Location tracking function:
In addition to these common noun information mentioned above, there are some unpopular terms mentioned in some news, such as location tracking. Common mobile VR products generally do not have this function, and can only be simulated by a simple gyroscope, resulting in a location Inaccurate and different from what we did in the same way in real life, the immersive experience of the product experience is poor, and it is prone to dizziness (the above video can also see the difference). 
If you have previously noticed the dismantling of the HTC Vive or the dismantling of the Oculus Rift, you will find that there are some small components on the surface of these devices. The Oculus Rift's components are infrared emitting devices, with the infrared sensor camera on the head Precise positioning, and those on the Vive are photosensitive elements, with the laser positioning device for precise positioning. In addition to these hardware, the precise position tracking function also requires a high-performance CPU for fast calculations, so that the data can be transmitted to the graphics card at the first time, allowing the graphics card to render the image at that position and then output it to the display. Steps that are slower can result in imperfect experiences, so general mobile VR does not have this capability due to performance limitations and portability considerations.
Eye tracking:
Eye tracking is also called eye tracking. For the first time, we know that this technology is also used by a crowdfunded VR device called Fove. It uses an infrared camera to receive the light reflected by the eyes to determine the position of the eye, and eye tracking technology can be used. The VR device brings three functions. The first is the auxiliary positioning, which increases the accuracy of the head positioning; the second function is to control the interface; the third function is to reduce the dependence on the graphics card. This point we have to explain, normal In this case, the graphics card will render all the screens in the direction we are looking at. After using eye tracking, we will only focus on the point we are gazing at in the screen, and other places Blurring, this will effectively reduce the graphics card requirements. Of course, some people say that this can protect eyesight, and we are not sure about this point, and we don't comment too much on it (the overall operation of the eye tracking device is shown above).
Because the product is controlled by the eye, we do not need us to raise our hands. Therefore, some people think that this is a design to reduce immersion, which is why many manufacturers do not fully develop this function.
to sum up:
These are basically some of the VR terms that are currently common in the market. As far as stuns and delays are concerned, these nouns that basically know what they are looking for are completely unnecessary to explain, like near-eye square displays and microlens array display technologies. Words are too small. If you have just emerged, we will prepare an article on advanced VR technologies in the later stages to help you understand them further. Due to space limitations, we will not repeat them here. 
VR products common noun parse will be able to go out blowing
Since the beginning of this year, VR has received more and more attention from users. Although few people in our real life will use such devices, there is a lot of talk about it, and you want to have a chat with your friends. Mouth, or avoid arbitrarily viewing the parameters when purchasing VR, how can professional nouns not know it? Today we share the meaning of these VR common terms with you to help you learn more about VR.