Delphi Flat Response Knock Sensors, Engine Experimenters

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One of my customers is an engine experimeter and has purchased these from me. He thought I should make them available on the forum, as he thinks they are about the best for engine management experiments. There are 75 available and the price is between $25.00 and $35.00, depending on quanity ordered. For further information, Email me at [email protected]
Description
The Delphi Flat Response Knock Sensor is a self-generating piezoelectric sensor. Commonly mounted on an engine block or cylinder head, it produces an output voltage in proportion to the engine vibrations caused by knock. When knock is present on the sensor signal, the engine control module (ECM) controls knock by retarding spark timing, or diesel injection timing. Benefits
Self-generating piezoelectric design requires no power to the sensor.
Flat frequency response allows the same sensor to be used on different engines and the sensor responds to knock frequencies higher than the primary frequency.
Ground-isolated design with two-wire shielded harness helps protect the sensor signal from electro-magnetic interference (EMI).
Large mounting hole accommodates mounting bolts up to 10mm in diameter.