Audio and Video

Distance measurement techniques

So, you want to measure the shape of an object, perform a 3D surface scan or conduct surface metrology tests. Google tells us there are many measurement methods to achieve these goals. Problem is, which one’s best for you? Non-Contact Distance Measurement Technologies article is a god overview to the non-contact measurement sensor technologies –

TV in Finland 60 years

Finland’s first television broadcast was seen 60 years ago. In 1954 Finnish radio engineers were concerned about the situation that other Nordic countries was already TV test transmissions (England TV started in 1946 and USA 1947). In the autumn of 1954 in connection with the proposal for the  Radioinsinööriseura (North Fire Radio Engineering Society) was