Describes a simple software mimic of an analog-to-digital (A/D) converter that is suitable for most laboratory applications requiring A/D. The routine samples output from a voltage-controlled oscillator that can be built for around $6. Results of proving trials show the output to be linear and sampling rates of up to 50/sec are possible.
- circuit & program for voltage controlled oscillator,
- alternative to analog-to-digital converters in behavioral laboratory applications
Available at: http://works.bepress.com/charles_amlaner/38/