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这是一个应用IC计时器的例子。如图所示,当使用气压缸时,希望用一个理想的时间比来设定把气压缸充分推出到冲程端点的时间,即由气压缸推出的时间和把气压缸拉回来的时间,并使之往复动作。 在电子回路中有触发回路或多谐振荡器的回路,并被用于脉冲振荡等。一般,触发回路的周期为10~(-3)秒或10~(-6)秒的数量级,而生产工艺中的气压缸的动作时间为秒或分的数量级。因此如使用IC计时器,便可易于构成这种数量级的触发回路,然而由于可单独设定接通和断开时间,所以负荷比也是可变化的。
This is an example of using an IC timer. As shown, when using a pneumatic cylinder, it is desirable to set the time required to fully push the pneumatic cylinder to the end of the stroke by an ideal time ratio, that is, the time pushed by the pneumatic cylinder and the time taken to pull the pneumatic cylinder back The reciprocating action. In the electronic circuit trigger circuit or multivibrator circuit, and is used for pulse oscillation. In general, the cycle of the trigger circuit is in the order of 10 -3 seconds or 10 -6 seconds, whereas the pneumatic cylinder in the production process is operated in seconds or fractions of a second. Therefore, if IC timers are used, it is easy to form such an order of magnitude of the firing circuit. However, since the ON and OFF times can be individually set, the duty cycle can also vary.