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The automobile brake fluid monitor

2015-01-31 11:53  
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The automobile brake fluid monitor
The working principle of the circuit The automobile brake fluid monitor circuit consists of the liquid level detection circuit and storage liquid state indicating circuit, see as figure 7-65. The liquid level detection circuit consists of the detection polarity, capacitor C, resistors R1-R4, transistors of V1 and V2. The storage fluid state indicating circuit consists of the indicators of HL1 and HL2, potentiometer RP and thyristor VT. When the key S is pressed, the whole machine is getting power and working.