What Are the Indicators on the Car Dashboard?
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The car dashboard is a device that reflects the working conditions of various vehicle systems. Common indicators include the fuel indicator, washer fluid indicator, electronic throttle indicator, front and rear fog light indicators, and warning lights. More details are as follows: 1. The dashboard's bezel is connected to the pointer, and the pointer is set to zero via a hairspring. The rotation speed of the magnet causes changes in the size of the magnetic field lines, disrupting the balance and thus moving the pointer. 2. This type of speedometer is simple and practical and is widely used in both large and small vehicles. However, with the advancement of electronic technology, many car dashboards now use electronic speedometers. A common type obtains signals from the speed sensor on the transmission, causing the pointer to deflect or display numbers through changes in pulse frequency. 3. The odometer is a digital instrument that engages with the worm gear on the speedometer's drive shaft via the counter drum's transmission gear, causing the counter drum to rotate. Its characteristic is that when the upper drum completes one full rotation, the lower drum rotates 1/10 of a turn. 4. Like the speedometer, odometers now also come in electronic versions, which obtain mileage signals from the speed sensor. The accumulated mileage data in electronic odometers is stored in non-volatile memory, preserving the data even without power.
