SSD7120 Knock Linearity Source

Description

The verification of Knock and Detonation meters has been a topic for some time over 60 years . How does one truly know if the detonation meter or the knock meter are working correctly? Is your engines spread linear as it relates to the range of the input voltages and settings on the knock meter dial. It is possible that the meter on the engine isn’t linear and falls outside the 2point limits?

We have developed a new technique to effectively test the Knock meter over the 0 to 100KI range. Detonation meters over the D1‘s range of output voltages 1.0V to 0.200V. This system allows one to test the meters and cables at various voltages and meter/spread settings to check for dead spots in the meter/spread rotors, cables and movements. Checking the systems linearity which should be no more than 1% of full scale. The SSD7120 is an all in one simple to use portable verification device.

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