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初探國際半導體大廠ROHM之SiC碳化矽專利佈局
帶隙能量（bandgap energy）比第一和第二代半導體 (諸如Si、GaAs) 寬，且具有高電場耐壓性能；因此能實現高耐壓化、大電流化、低導通電阻化、高效率化、低功耗化、高速開關等的碳化矽 (SiC) 第三代半導體而備受矚目。第三代半導體材料主要用於光電子器件、電力電子器件 (即功率半導體) 以及微波 (Microwave) 或射頻 (Radio frequency，RF) 器件。汽車是碳排放的重要來源，低碳排放的趨勢驅動全球電動汽車產業崛起，帶動電力電子 (即功率半導體) 快速增長。......
#電子元件 #射頻RF #微波Microwave #通訊量測
【電子小常識之三：射頻／微波量測】
射頻 (Radio Frequency, RF) 泛稱 3 kHz～300 GHz 範圍的震盪頻率，涵蓋微波 (Microwave，波長介於紅外線和無線電波之間的電磁波) 之 300 MH～300 GHz 頻段，被廣泛用於頻譜分析儀、網路分析儀、訊號產生器等電子量測儀器。
◆頻譜分析儀：在儀器整個頻率範圍內輸入訊號的幅度與頻率，藉由分析電訊號頻譜，可觀察無法輕易透過時域波形檢測出來的訊號失真、諧波、頻寬和其他頻譜成分，以表徵電子設備特性，也可用於電磁干擾 (EMI) 相容性測試。
◆網路分析儀：藉量測射頻元件與裝置的線性參數，並可針對特殊應用分析訊號完整度與材料成份。因屬於封閉式系統，可透過絕佳的精確度測得 RF 特性參數，向量網路分析器 (VNA) 可量測裝置的強度、相位、阻抗。
◆訊號產生器：可應用在複製感測器訊號、建立射頻和最快速的高速串列資料訊號，作為其他設備標準或參考訊號之用，包括：數位、類比、調變、雜訊和脈衝訊號等，每種訊號都有各自獨特的時間、頻率和振幅特性。
當 4G / 5G 和物聯網 (IoT) 無線通訊在生活中越來越普及，對於測試基準的要求也在不斷提高。量測儀器設計人員的首要挑戰是找到足夠好的元件來覆蓋寬幅的頻寬，且針對不同頻段，可能需要增加不同的訊號路徑或額外處理模組。此外，控制系統的背景雜訊，以滿足改善系統動態範圍的市場要求是另一項難題；因為使用的數位／射頻訊號處理越多，就更難獲得乾淨的訊號。這一切，需要一站式晶片供應商為奧援，提供鎖相環 (PLL)、混頻器、功率檢波器、ADC、DAC、放大器和數位訊號處理器等全系列元器件。
認識更多「射頻／微波量測」訊號鏈及相關元器件資訊：
http://compotechasia.com/microsite/ADI/rf.html
เราติดต่อสื่อสารกับยานสำรวจอวกาศ New Horizons ได้อย่างไร?
นี่น่าจะเป็นคำถามหนึ่งที่โดนถามมาบ่อยที่สุดแล้วครับ เลยถือโอกาสตอบเอาไว้ตอนนี้เลย
เราสามารถติดต่อสื่อสารกับยานอวกาศทุกลำในอวกาศ ได้ด้วยคลื่นวิทยุ เราคุ้นเคยกับคลื่นวิทยุอยู่แล้ว ในรูปของวิทยุกระจายเสียงที่เราฟังกันในรถ จริงๆ แล้วคลื่นวิทยุและคลื่นแสง ต่างก็เป็นคลื่นแม่เหล็กไฟฟ้า โดยธรรมชาติแล้วคลื่นวิทยุไม่มีความแตกต่างอะไรจากแสงที่เรามองเห็นเลย นอกเสียจากความถี่เท่านั้นเอง นอกจากนี้คลื่นแม่เหล็กไฟฟ้าอื่นๆ ที่เราอาจจะค...
Continue ReadingHow do we communicate with new horizons spaceship?
This is probably one of the most often asked questions, so I took a chance to answer it now.
We can communicate with every spaceship in space with radio waves. We are already familiar with radio waves. In the radio broadcasting we listen to in the car. Actually radio waves and light waves are naturally electromagnetic waves. There is no difference. From the light we can see, unless the frequency, other electromagnetic waves we may be familiar with is microwave, infrared, x, gamma rays are all electromagnetic waves.
Electromagnetic wave is an intermediary wave to travel, so it can travel through space. This is why we can see the light from galaxies that are millions of light years away while we can't hear from the sun explosion. That happens continuously (due to sound waves not traveling in vacuum). All kinds of electromagnetic waves travel through space at light speed or around 300,000 km / sec.
The light from our sun takes about 8 minutes to arrive at our planet, while Pluto light will take about 4.5 hours. That means any radio signal that new horizons deliver will take 4.5 hours to arrive. Our world
We contact new horizons spacecraft using x band, which involves the microwave range on earth. We use x band wave range to detect objects by new horizons spacecradar. Send and receive signals with earth via size signals. 2 metres attached to the earth ship. We have a "Deep Space Network ( DSN )" signal that is spread around the world so that can receive signal at any time with three stations at Barstow, California; Madrid , Spain; and Canberra, Australia in the picture is one of deep space network's Transmitter stations.
When space exploration is further from earth, the signal will weaken as normal, resulting in transmitter rate. While new horizons spaceship is at Jupiter's orbit will have a transmission rate of about 38 kilobit per second ( Kbps) If anyone remembers when it took 36 k modem to connect the internet and download pictures, that's the speed that new horizons spaceship used to send Jupiter photos back to earth.
However, when it reaches Pluto orbit, the distance of over 5 billion kilometers, the transmission rate decreased to 1-2 kbps. This slow transmission rate makes most of the data of new horizons are still stored. In Memory and can't be returned to the world. We only have 5 % of all data sent during flyby and we have to wait until the end of 2016 to send all the data back.
In addition, new horizons spaceship has no moving parts. That means whenever the ship is recording scientific data, it will not turn the plate back to earth and can't send data at the same time with storage whenever the ship is empty, except storage. So I can turn to the world to send information.
And Although most of the storage is over, deep space network project still have many spaceship to keep track of new horizons, so we have to wait for their queue to send them little information at first to send the information passed. Compressed before and we on earth have to wait for the full resolution.
Photo: NASA
Read more:
[1] http://pluto.jhuapl.edu/Mission/Spacecraft/Data-Collection.php
[2] http://deepspace.jpl.nasa.gov/about/#Translated
Section III Wave Motion
3.3 Sound
Ultrasound
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△cookpad△ https://cookpad.com/kitchen/29889773#share_url
▼material
Cookie 60g
butter 25g
cream cheese 200g
pudding 320g
gelatin 4g
Water 30ml
[How to make]
1.Crush and dissolve 60g of cookie, mix 25g of butter and mix well.
2.Put 200g of cream cheese and 20g of granulated sugar in a heat-resistant container and heat for 600 seconds in a microwave oven and mix well.
3. Put two chins (320g) in a separate container and save the caramel part.
4. Mix the pudding better and mix with the cream cheese and mix better
5.Put 4g of gelatin and 30ml of water in another container, heat for 600w for 20 seconds, add to cheese pudding solution and mix quickly and well.
6. Add the cheese pudding solution to the cake container, chill in the refrigerator overnight, mix the caramel that has been set aside, and complete from above.
▼今回使った材料
クッキー 60g
バター 25g
クリームチーズ 200g
プリン 320g
ゼラチン 4g
水 30ml
【作り方】
1.クッキー60gを砕いて溶かしバター25gを入れ良く混ぜ底抜けケーキ容器12cm型にクッキーを敷き詰めます
2.耐熱容器にクリームチーズ200gグラニュー糖20gを入れレンジ600w50秒加熱し良く混ぜる
3.ぷっちんプリンビックを2個（320g）別容器に入れカラメル部分は取っておく。
4.プリンの方を良く混ぜクリームチーズと合わせて更に良く混ぜる
5.ゼラチン4gと水30mlを別容器に入れレンジ600w20秒加熱しチーズプリン液に加え素早く良く混ぜる
6.ケーキ容器にチーズプリン液を加え冷蔵庫で一晩冷やし、取って置いたカラメルを良く混ぜ上からかけて完成です
▼イラスト
noka0114
https://profile.coconala.com/users/878718
▼使用機材
MacBook Air
Canon eos kiss x9
iPhone 8
RODO Video Micro
▼編集ソフト
Final Cut Pro X
▼音源使用場所
【Frequency】https://www.youtube.com/user/FreeSong...
▼Daniel Rosty & Sash_S - See The Stars
https://youtu.be/7wYu7pTBM5A
▼4URA - Where I Am
https://youtu.be/lBdIb5vxuJs
▼TheFatRat - Prelude (Jackpot EP Track 3)
https://youtu.be/kzr5RQE0tZs
▼Music Provided by NoCopyrightSounds:
▼ROY KNOX - Blue Eyed Demon [NCS Release]
https://youtu.be/KBtmHyfOMNU
▼XØ SELF - dR3ÄMS (ft. ARZĘ) [NCS Release]
https://youtu.be/q_fDMGiJNYQ
Non-Copyrighted Music for you! ♫ Free songs to use in your videos!
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▼Cadmium - Want It All (ft. Timmy
▼Helynt - Time | ♫ Copyright Free Music
https://youtu.be/JbOoufn8FVI
#チーズプリン #cake #たけ民
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▽チャンネル登録コチラから宜しくお願いします！
http://urx.space/klve
△twitter△ http://twitter.com/@takemin17
△Instagram△ https://www.instagram.com/takemin1118
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△cookpad△ https://cookpad.com/kitchen/29889773#share_url
▼material
cream cheese 200g
sugar 30g
heavy cream 200ml
black chocolate 150g
cocoa powder 25g
egg 1
[How to make]
1.Put 200g of cream cheese and 30g of granulated sugar in a heat-resistant container and heat for 600 seconds in a microwave oven and knead well.
2. Next, put 150g of black chocolate in a different heat-resistant container, add 200ml of warm cream and mix well to dissolve
3. Put everything together and mix well.
4.Sieve 25g of cocoa powder through sieve and mix well until powdery is gone
5.Add one egg size M and mix well, then spread the cooking sheet on the bottom and side in a 12cm bottom cake container
6. Pour the dough into about 80% of the cake container, fill the oven dish with water and steam. Bake at 302℉ degrees for 1 hour
7. Once burnt, cool in the refrigerator overnight to complete
▼今回使った材料
クリームチーズ 200g
グラニュー糖 30g
生クリーム 200ml
ブラックチョコレート 150g
ココアパウダー 25g
卵Mサイズ1個
【作り方】
1.耐熱容器にクリームチーズ200gグラニュー糖30gを入れレンジ600w50秒加熱し良く練り混ぜます
2.次は違う耐熱容器にブラックチョコ150gを割り入れ、温めた生クリーム200mlを入れ良く混ぜ溶かします
3.全てを合わせて良く混ぜます。
4.ココアパウダー25gを篩いにかけ入れ、粉っぽさが無くなる迄良く混ぜます
5.更に卵Mサイズ1つを入れ良く混ぜ、底抜けケーキ容器12cmにクッキングシートを底と横に敷きます
6.ケーキ容器の8割位まで生地を入れ、オーブン皿に水を張り蒸し焼きにする。余熱したオーブン150度1時間焼きます
7.焼けたら冷蔵庫で一晩冷やして完成です
▼イラスト
noka0114
https://profile.coconala.com/users/878718
▼使用機材
MacBook Air
Canon eos kiss x9
iPhone 8
RODO Video Micro
▼編集ソフト
Final Cut Pro X
▼音源使用場所
【Frequency】https://www.youtube.com/user/FreeSong...
▼Daniel Rosty & Sash_S - See The Stars
https://youtu.be/7wYu7pTBM5A
▼TheFatRat - Prelude (Jackpot EP Track 3)
https://youtu.be/kzr5RQE0tZs
▼Music Provided by NoCopyrightSounds:
▼ROY KNOX - Blue Eyed Demon [NCS Release]
https://youtu.be/KBtmHyfOMNU
▼XØ SELF - dR3ÄMS (ft. ARZĘ) [NCS Release]
https://youtu.be/lZ3pPJsGs1w
Non-Copyrighted Music for you! ♫ Free songs to use in your videos!
▼ Help us reach 300.000 subs :)! https://goo.gl/cjBbTE
▼ Free Download: https://www.toneden.io/cadmiumsound/p...
▼Cadmium - Want It All (ft. Timmy Commerford & Jaytee) | ♫ Copyright Free Music
https://youtu.be/Q-rJbe0ggZ8
▼Helynt - Time | ♫ Copyright Free Music
https://youtu.be/JbOoufn8FVI
▼Paul Garzon - Peace | ♫ Copyright Free Music
https://youtu.be/iDIoBmhPQMs
#チョコチーズケーキ # chocolatecake #たけ民
The microwave spectrum is usually defined as a range of frequencies ranging from 1 GHz to over 100 GHz. This range has been divided into a number of ... ... <看更多>
extremely high frequency (EHF) (30-300 GHz). In addition, microwave frequency bands are designated by specific letters. The designations by the Radio Society of ... ... <看更多>
microwave frequency 在 Microwave - Wikipedia 的相關結果
Microwave is a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter corresponding ... ... <看更多>