EM Electronics
EM Electronics supply ultra low level measuring equipment to National Physical Laboratories, calibration, standards and scientific research Institutions, industry and medical centres in all parts of the world. Development is continuing and an increased range of new products is planned, in addition to the constant upgrading of our existing range of scientific instruments.
- 44 (0) 1481 710397
- sales@emelectronics.co.uk
- 7 Clos de Bas
St Peter Port,
Guernsey, Channel Islands GY1 1TS
United Kingdom
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Low Level Voltage Measuring Instruments
This instrument has a very wide range of source resistance capability and has an equivalent noise resistance of less than 10 ohms. Sub-nanovolt resolution is possible. The N11 has many applications, including cryogenic measurements.
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Ultra Low Level DC Voltage Amplifiers
The EM A10 is a low level amplifier module for sensitive measurements, data collection and systems, where signals below 1 nanovolt may be measured. It is ideal for the input unit for precision voltage measuring systems, requiring voltage sensitivity for measuring low noise and low impedance sources. The noise level of the A10 is equivalent to a perfect resistor of about 20 ohms. When used with a digital voltmeter, steady one nanovolt digits may be displayed, with a response time constant of less than a second. The input voltage stability of the A10 is very high, with the drift around a nanovolt per degree C. The input connectors are made from pure copper. The input impedance is very high, and is time dependent, determined by the loop gain.
