An absolute value converter is a device that receives analog signals with polarity and outputs a signal proportional to their absolute value. For example, with a ±10V input, both -10V and +10V produce the same output.
This type of device can be used in precise temperature control, where it is necessary to monitor the absolute value and set alarms for upper and lower limits. It can be utilized in control applications to prevent values from rising or falling too much.
Normally, such functions are performed by sequencers or controllers, but an “absolute value calculator” can be added to existing control loops to enhance their capability.
The model name ‘ABS’ of our “absolute value calculator” stands for “absolute” and is often used as a symbol for operation blocks in programming.