A Simple QC Test for Knock Sensors

972002

05/20/1997

Event
SAE Noise and Vibration Conference and Exposition
Authors Abstract
Content
A simple set-up for quick and purely electrical QC testing of knock sensors is described in this paper. The main goal is to measure the “impedance” frequency response function of the sensors. The advantages of the test procedure described in this paper are as follows: Simple “pseudo” one channel measurement, from the operator's point of view. Electrical testing, i.e. no need for shakers, power amplifiers, elaborate fixtures etc.. Pulse excitation, thus very fast - in the order of 100ms for one measurement test. No averaging needed. Standard frequency response function display is used, i.e. no complex postprocessing needed. The only requirement is a small junction box with the necessary transformer and some electronics. The power supply for the junction box is the analyzer. The testing method can be extended to other types of transducers such as accelerometers.
Meta TagsDetails
DOI
https://doi.org/10.4271/972002
Pages
5
Citation
Gade, S., Matzen, S., and Herlufsen, H., "A Simple QC Test for Knock Sensors," SAE Technical Paper 972002, 1997, https://doi.org/10.4271/972002.
Additional Details
Publisher
Published
May 20, 1997
Product Code
972002
Content Type
Technical Paper
Language
English