CRANK ANGLE SHAFT ENCODER

A crank angle shaft encoder is a precision measurement device used to measure the angular position, rotational speed and timing of a rotating shaft. In engine testing, it is particularly important because it identifies the exact angular position of the crankshaft during each engine cycle, allowing pressure, combustion, injection and other measurements to be related to crank angle.

For engine-testing applications, a crank angle encoder is especially useful when measuring cylinder pressure in petrol or diesel engines, calculating indicated power, analysing combustion, and synchronising pressure transducer data with crankshaft position. 

The encoder’s rotating element is mechanically coupled to the crankshaft, and as the shaft rotates, a code disc, magnetic pattern, or toothed target moves past a sensor. The sensor generates electrical pulses, which are counted by the electronics to determine direction and position. An absolute position Top Dead Centre (TDC) establishes a repeatable angular origin. The data acquisition system on ECA100 and ECA101 associates each pressure sample with the corresponding crank angle. 

Crank angle input: Shaft encoder with 360 pulses per revolution with 1° resolution.

Key features:

• Significantly enhances practical investigations, demonstrations and studies of internal combustion engines.
• For use with TecQuipment’s Engine Cycle Analyser (ECA100).
• Designed to measure the angular position and rotational speed in engines during compression, combustion and expansion strokes.
• Captures rapid changes in rotational speed and angular position during engine operation, making it suitable for combustion analysis and Crank-angle measurements.
• Suitable for Piston Position Tracking to identify when the piston reaches Top Dead Centre (TDC).

Essential Ancillaries:

• Engine Cycle Analyser (ECA100)
• Cylinder Head Pressure Transducer (ECA101)
• Suitable Computer – see specifications 

TecQuipment also offers a complete package (the ECA100S). This includes the ECA100, one ECA101 and one ECA102.

For engine test sets or engines other than TecQuipment’s TD200 or TD300 series, please get in touch with TecQuipment or your local TecQuipment Agent.

Ancillary For:

• Modified Four-Stroke Petrol Engines (TD211, TD211ES)
• Modified Four-Stroke Diesel Engine (TD212, TD212ES)
• Four-Stroke Petrol Engine (TD301)
• Four-Stroke Diesel Engine (TD302)