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Engine Analyzer System: Difference between revisions
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In the late 1950s, Tektronix began developing '''solutions for analysis of rotational machinery''', especially internal combustion engines. | In the late 1950s, Tektronix began developing '''solutions for analysis of rotational machinery''', especially internal combustion engines. | ||
==Chronology== | |||
===1958-1961: ROTAN=== | |||
The earliest implementation was the [[ROTAN]] system from 1958 that used a magnetic drum rotational encoder coupled to the engine. It was limited to 10,000 rpm. ''What was the commercial status of the 1958 ROTAN until 1961?'' | The earliest implementation was the [[ROTAN]] system from 1958 that used a magnetic drum rotational encoder coupled to the engine. It was limited to 10,000 rpm. ''What was the commercial status of the 1958 ROTAN until 1961?'' | ||
===1961-1967: 183/182=== | |||
In the early 1960s, still under the ROTAN label, the [[183|183 Rotational Analyzer]] with its optoelectronic [[182]] allowed up to 20,000 rpm. | In the early 1960s, still under the ROTAN label, the [[183|183 Rotational Analyzer]] with its optoelectronic [[182]] allowed up to 20,000 rpm. | ||
===1967-1975: 560-series Engine Analyzer package=== | |||
In 1967, Tek commercialized a package of instruments as the '''Tektronix Engine Analyzer'''. | In 1967, Tek commercialized a package of instruments as the '''Tektronix Engine Analyzer'''. | ||
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generator input), and a modified [[3A74]] 4-channel amplifier providing separate inputs for pressure (with a charge preamplifier), ignition, vibration, and crank-shaft rotation marker. | generator input), and a modified [[3A74]] 4-channel amplifier providing separate inputs for pressure (with a charge preamplifier), ignition, vibration, and crank-shaft rotation marker. | ||
The Engine Analyzer was applied to measurements on [[wikipedia:Internal combustion engine|Internal combustion engines]] | The Engine Analyzer was applied to measurements on [[wikipedia:Internal combustion engine|Internal combustion engines]], and facilitated displays like | ||
{{2ColBegin}} | {{2ColBegin}} | ||
* Pressure vs. time | * Pressure vs. time | ||
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a pulse pattern marking crank angle in 10°, 60° and 360° increments, and a modified sine (6% second harmonic) representing piston volume as a function of crankshaft angle. | a pulse pattern marking crank angle in 10°, 60° and 360° increments, and a modified sine (6% second harmonic) representing piston volume as a function of crankshaft angle. | ||
===1975-1985: 7000-series and TM500=== | |||
The Engine Analyzer System was available from 1967 until 1975, when production of the 560 oscilloscope series was terminated. | The Engine Analyzer System was available from 1967 until 1975, when production of the 560 oscilloscope series was terminated. | ||
To allow the rotational function generator to be used with [[7000-series scopes]], Tek offered a combination of a modified | To allow the rotational function generator to be used with [[7000-series scopes]], Tek offered a combination of a modified | ||