| 摘要 |
To measure acceleration of a vehicle or other moving unit, a system installed in the vehicle includes an electrolytic gravity sensor coupled with at least one other component in a voltage divider arrangement. An a-c signal generator develops a signal across the voltage divider arrangement, so that the gravity sensor provides a signal which varies as a function of vehicle acceleration. This varying signal is rectified, integrated and utilized as an analog voltage signal representing the actual deceleration. The system includes a further stage for providing a variable resistance or analog current signal output. A polarity reversal protector is coupled to the input stage so that the electronic components of the system will not be damaged by connection to vehicle batteries of different polarity arrangements.
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