| 摘要 |
<p>Opinion polls involving a great number of people use normally forms in which choices have to be ticked (multiple choice forms). From these forms mean values are calculated, which can be quite tedious with great number of questions, and people involved. There are appts. for instantaneous evaluation, however, with considerable drawbacks. This opinion evaluator has a constant current source, variable resistors (1) as responders and an evaluator (2) proper. The resistors are series connected and a voltmeter is used as evaluator. Pref. the responders consist each of a variable resistor, a connecting table with plug and a socket, short circuited when not in use, serving for connection of a further responder. A switch may be incorporated for short circuiting all outputs.</p> |
