Today, as the IR sensing technology evolves, the sensors also come in various system designs. Active Infrared (IR) sensors can be an emitter and detector as a single unit operating at the same. wavelength, or photoelectric sensor working with reflective surfaces. IR sensors can be categorized. as retro-reflective sensors and diffuse reflection sensors. Retro-reflective sensors are more proper.
1 A note about your meat: make sure you get rump roast, round roast, or sirloin-one of the cheaper cuts. 2  Using the slow roasting method for prime cuts of beef doesn't work as well, since prime cuts are more tender. 3  If you want to cook a prime cut of beef, see How to Cook a Prime Rib Roast. If you want to cook a prime cut of beef, see How to Cook a Prime Rib Roast. 2  Make sure the beef you get is boneless, and check for a dark pink, springy surface and plenty of marbling. 3  Depending on the cut you get, it might have a cap of fat on top.
The oven temperature used to cook a beef roast is usually set somewhere between 300 degrees and 450 degrees Fahrenheit. The recommended cooking temperature for your roast is usually determined by the type of beef cut that you plan to roast.he proper beef roast cook times and the correct beef cooking oven temperatures are extremely important. The optimum flavor and tenderness of various beef roasts can be consistently achieved when care is taken to follow the recommended time and temperature guidelines for cooking beef roasts.