Recent content by senmeis

There are two cases for thermal transfer: with or without gas. With gas: Can thermal flux be calculated with flow measurement? Without gas: Is this the case only in vacuum?

Hi, What’s the difference between two similar sensors: thermal mass flow sensors (see attachment) and thermal flux sensors at https://vatell.com/index.php/thermogage. For me the former one is used to measure gas flow. What about the latter? Must there be gas for thermal flux sensors?

Thanks.

Hi, Is ephemeris data of satellites standardized as TLE files or different constellations have different formats?

Hi, How much time difference can be expected between polynomial and exponential time?

For the case with a reflector plane (elevation plane) there’s no radiation behind this plane. Is it true?

As far as I understand all the instruments shall be located on one side of the elevation plane so the radiation on this side is not necessary. Is it correct?

Hi, In the attached slide the elevation angle of a phased array antenna ranges from -25 to +25 degrees. Does it mean EM waves are transmitted on both sides of the elevation plane? Does it make any sense?

I can also find such two speed switches on the market, but I’d prefer my 2-way-2-gang switch because I need a squared switch panel. So does my wiring work at all?

This is my wiring diagram.

Let me formulate the problem clearly. I want to use a 2-way-2-gang switch to control a dual-speed fan motor. The switch has six poles on the back: L11, L1, L12, L21, L2 & L22. The motor has two terminals: High Speed and Low Speed. The idea: switch L1 is for overall On and Off and switch L2 is...

This is a conventional 2-Gang wall switch on the market such as: https://www.amazon.com/Amerisense-Outlet-Screwless-Decorator-Standard/dp/B0BYCM75P7/?tag=pfamazon01-20. Each switch operates separately. When On, current will be delivered through this switch. When Off, , no power is available...

Hi, I want to control a two speed fan motor with a two way light wall switch. The switch has L1 and L2 ports which can deliver power to two separate lights. The motor has two power terminals: speed 1 and speed 2. Of course I mustn’t connect L1 to speed 1 and L2 to speed 2 directly because only...

Hi, I’ve read military EMC standard (such as MIL 461) requires peak detection while consumer standard requiers average detection. Does it mean the peak detection is stricter than the average one?

Hi, On slide 9 of this presentation: http://www.globalcommhost.com/rogers/acs/techsupporthub/en/docs/MWJ_webinar_June20_2017_JC_microstrip_coplanar_stripline_final.pdf it states the signal wavelength can be changed with dielectric constant Dk. As far as I understand the wavelength and the...