| 摘要 |
A student-programmable education instrumentation device is disclosed which includes a plurality of programmably selectable electronic circuits within a suitable housing. A control panel having plural controls and certain input jacks connected to some of the circuits, a visual display device and a program panel having plural plug-in receptacles are mounted on the housing. The programmably selectable circuits include a null-point circuit for comparing a reference signal to an unknown input signal at one of the jacks or receptacles; a plurality of calibrated variable amplifiers and generator circuits, and a power supply. A variety of input sensors, probes and devices are provided for connection to the device at the jacks or receptacles. Via programming interconnection by the student the device is transformed into a preselected one of a virtually unlimited number of instruments aiding learning and understanding of physical and chemical phenomena and the application and operation of electronic instrumentation thereto.
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