File:Pneumatic Rack and Pinion Actuators.JPG
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Pneumatic Rack and Pinion Actuators.JPG
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Original file (2,952 × 3,979 pixels, file size: 5.86 MB, MIME type: image/jpeg)
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Summary
| DescriptionPneumatic Rack and Pinion Actuators.JPG |
English: Two pneumatic rack & pinion actuators (AutoMax SuperNova) are used to control two valves for this large water pipe. A control signal line comes to the indicator box (red ball) that shows the current position of the valve. The signal line out of another indicator box of the top actuator (hidden from view) can be seen to connect to the solenoid value (small black box attached to the back of the top actuator) which is used as the pilot for the actuator. The solenoid valve controls the air pressure coming from the input air line (small green tube). The output air from the solenoid valve is fed to the actuator's chamber, increasing the pressure . The pressure in the actuator's chamber pushes the pistons away. While the pistons are moving apart from each other, the attached racks are also moved along the pistons in the opposite directions. The racks are connected to a pinion at the direct opposite teeth of the pinion. When the two racks move, the pinion is turned, causing the attached main valve of the water pipe to turn. |
| Date | |
| Source | Own work |
| Author | Z22 |
References:
- The Role of Rack and Pinion Actuators in On-Off & Modulating Controls archive copy at the Wayback Machine (how an actuator works with water valve).
- Automax SuperNova Series Pneumatic Rack & Pinion Actuators archive copy at the Wayback Machine (actuator, solenoid value and indicator).
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depicts
25 June 2014
1,600
0.025 second
4.1
21 millimetre
image/jpeg
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:11, 7 July 2014 | 2,952 × 3,979 (5.86 MB) | wikimediacommons>Z22 | User created page with UploadWizard |
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Metadata
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| Image title | OLYMPUS DIGITAL CAMERA |
|---|---|
| Camera manufacturer | OLYMPUS IMAGING CORP. |
| Camera model | E-P1 |
| Exposure time | 1/40 sec (0.025) |
| F Number | f/4.1 |
| ISO speed rating | 1,600 |
| Date and time of data generation | 09:59, 25 June 2014 |
| Lens focal length | 21 mm |
| Orientation | Normal |
| Horizontal resolution | 314 dpi |
| Vertical resolution | 314 dpi |
| Software used | Version 1.3 |
| File change date and time | 09:59, 25 June 2014 |
| Y and C positioning | Co-sited |
| Exposure Programme | Normal programme |
| Exif version | 2.21 |
| Date and time of digitising | 09:59, 25 June 2014 |
| Meaning of each component |
|
| APEX exposure bias | 0 |
| Maximum land aperture | 3.61328125 APEX (f/3.5) |
| Metering mode | Pattern |
| Light source | Unknown |
| Flash | Flash did not fire, auto mode |
| Supported Flashpix version | 1 |
| Colour space | sRGB |
| File source | Digital still camera |
| Custom image processing | Normal process |
| Exposure mode | Auto exposure |
| White balance | Auto white balance |
| Digital zoom ratio | 1 |
| Scene capture type | Standard |
| Scene control | High gain up |
| Contrast | Normal |
| Saturation | Normal |
| Sharpness | Normal |