The microprocessor is one of the most useful developments to come from the revolution in integrated electronics. Data acquisition can be supplemented with mathematical operations, character displays and keypads can be used for output and input, and interfacing with computers can be done easily. Stepping motor controllers with digital readouts, multiple motors, software position limits, and complex control algorithms are easily implemented with this technology. An active filter is a circuit which combines resistors, capacitors, and amplifiers to synthesize a particular frequency response function. We can provide low pass, high pass and band pass filters for the audio frequency band, in Butterworth, Chebyshev and Bessel configurations.
Temperature controllers Control of temperature is one of the most common needs in the laboratory.
Specifications include temperature range and accuracy, as well as features such as number of set points and means for switching between them. The device being controlled, with its heater and sensor, must be provided by the customer. An example of an instrument which has proven useful to many researchers is the uD-500 Microdrive Controller which was developed for use by neurobiologists. A computerized video analysis of tethered bacteria. A microscope stage temperature controller for the study of whole-cell or single channel currents.