More about measurement (211)

1-05-1999 | The calliper gauge described in this article is not an optoelectronic device, although it is based on the marriage of a laser (optics)...

1-03-1999 | The portable test instrument described in this article supplies RGB test signals for VGA colour displays as used in many of today’s co...

1-03-1999 | Strictly speaking, noise is a composite of a great number of signals at many, varying frequencies. It is a random quantity which gener...

1-03-1999 | Many experts in the field query the use of sinewave signals to test amplifiers and other audio gear. Although a rectangular signal is i...

1-02-1999 | As you may know, the combination of a PC and a Metex or Voltcraft DMM sporting a serial interface may be used as a recording oscillosc...

1-01-1999 | An RF decibel (or power) meter is an indispensable instrument in any radio workshop. Unfortunately, accurate, wideband models are fairly e...

1-01-1999 | Conductivity in the sense it is used in this article is the ability of a substance such as water to conduct electric current. It is exp...

1-01-1999 | In many instances, suspect television receivers and monitors can be tested with a simple test pattern generator as described in this a...

1-12-1998 | When construction of the barometer/altimeter, which is based on a precision airpressure sensor with integral signal processor from Mo...

1-12-1998 | Together with a small program running under DOS, the circuit discussed in this article acts as an ADCbased voltmeter that allows you to ca...