Pioneer in the development of amplification techniques using synchronous detection with EG&G, HTDS is still proposing state-of-the-art techniques concerning signal recovery. Our products are designed for searchers as well as for R&D engineers, OEM integrators, etc. Signal recovery is the discipline which develops and studies the signal treatment (filtration, amplification…), analysis and interpretation techniques. HTDS is specialized in the detection and treatment of low or high amplitude signals. Our engineers will propose you innovative solutions to meet your most demanding needs.
Documentation & Publications
Voltage & current preamplifier
Low noise preamplifiers are used to amplify a signal at an acceptable and measurable level; but in addition to this first function, they can be used for many other functions such as adapting the impedance, increasing the sensitivity of your oscilloscopes... The analog low-noise preamplifiers proposed by HTDS (manufactured by Signal Recovery - ex EG & G) are specially designed for the most demanding measurements. Our wide range of preamplifiers (wide-band, differential, high and low impedance...) will respond optimally to your needs for amplification, impedance matching and low signal processing.
The low-noise preamplifier are used to amplify a signal to an acceptable and measurable level, but in addition we can use it for many other functions as to adapt your signal impediance, increase your oscilloscope sensibility… The analogical low-noise preamplifier proposed by HTDS are specially designed for the most demanding measures. Our wide preamplifier range (wideband, differential, high and low impedance…) will meet optimally your needs concerning amplification, impedance adaptation and low signals treatment.
Lock In amplifier
The noise is inherent to any electronic assembly. But when it is about amplify low levels signals, it may cause troubles. The synchronous detection allows to extract a known frequency signal which is lost in the noise. The solution offered by HTDS allow you to measure AC signals of some nanovolts in a noise which can be 100 or 1000 times more intense.
The synchronous detection amplifier (Lock In) can be considered as a selective vectorial voltmeter/ammeter with phase detection of which the two principle functions are to measure a low signal lost in an important noise (more than 106 times the signal)and to measure accurately a AC signal.
In addition to these functions, the Lockin proposed by HTDS can be used for many applications: ADC, DAC, phase meter, spectrum analyser, noise analyser and measurer. With a dynamic reserve higher than 130 dB, modulation frequencies up to 2Mhz, modes of exclusives treatments ( double reference mode, virtual reference mode…) synchronous detection amplifiers that we propose will allow you to handle successfully your most demanding expereiences.