Some manufacturers are saying the 12-24 VDC operating voltage is so
common because it makes for more precise positioning of the actuators.
Seems like a strange characteristic.
Fred Bloggs <bloggs.fred...@gmail.com> wrote:
Some manufacturers are saying the 12-24 VDC operating voltage is so
common because it makes for more precise positioning of the actuators. Seems like a strange characteristic.
I have a nanometer piezo stage that uses 0-3 kV. ;)
--
Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics
On Friday, November 17, 2023 at 3:27:44 PM UTC-5, Phil Hobbs wrote:
Fred Bloggs <bloggs.fred...@gmail.com> wrote:
Some manufacturers are saying the 12-24 VDC operating voltage is soI have a nanometer piezo stage that uses 0-3 kV. ;)
common because it makes for more precise positioning of the actuators.
Seems like a strange characteristic.
Most people use these more industrial grade components:
https://www.progressiveautomations.com/collections/linear-actuators
Nutty circuit used to brake the actuator with too much loading. I suppose they know what they're doing but it makes no sense to me.
https://www.firgelliauto.com/blogs/tutorials/preventing-backdrive-in-linear-actuators
On 2023-11-17 19:19, Fred Bloggs wrote:
On Friday, November 17, 2023 at 3:27:44 PM UTC-5, Phil Hobbs wrote:
Fred Bloggs <bloggs.fred...@gmail.com> wrote:
Some manufacturers are saying the 12-24 VDC operating voltage is soI have a nanometer piezo stage that uses 0-3 kV. ;)
common because it makes for more precise positioning of the actuators. >>> Seems like a strange characteristic.
Most people use these more industrial grade components:
https://www.progressiveautomations.com/collections/linear-actuators
Nutty circuit used to brake the actuator with too much loading. I suppose they know what they're doing but it makes no sense to me.
https://www.firgelliauto.com/blogs/tutorials/preventing-backdrive-in-linear-actuators
Using an SPDT (Form C) relay makes sense for that. With the pole going
to the motor, NC to ground, and NO to battery, the motor will get
shorted out when the power is removed.
lørdag den 18. november 2023 kl. 01.58.35 UTC+1 skrev Phil Hobbs:
On 2023-11-17 19:19, Fred Bloggs wrote:
On Friday, November 17, 2023 at 3:27:44 PM UTC-5, Phil Hobbs wrote:
Fred Bloggs <bloggs.fred...@gmail.com> wrote:
Some manufacturers are saying the 12-24 VDC operating voltage is so >>> common because it makes for more precise positioning of the actuators. >>> Seems like a strange characteristic.I have a nanometer piezo stage that uses 0-3 kV. ;)
Most people use these more industrial grade components:
https://www.progressiveautomations.com/collections/linear-actuators
Nutty circuit used to brake the actuator with too much loading. I suppose they know what they're doing but it makes no sense to me.
https://www.firgelliauto.com/blogs/tutorials/preventing-backdrive-in-linear-actuators
Using an SPDT (Form C) relay makes sense for that. With the pole goingand they usually have an NC switch in parallel with a diode at each end
to the motor, NC to ground, and NO to battery, the motor will get
shorted out when the power is removed.
once it reaches an end the switch opens stopping the motor from moving past the switch and the diode still lets it move away from the switch
On Friday, November 17, 2023 at 8:13:13 PM UTC-5, Lasse Langwadt Christensen wrote:
lørdag den 18. november 2023 kl. 01.58.35 UTC+1 skrev Phil Hobbs:
On 2023-11-17 19:19, Fred Bloggs wrote:
On Friday, November 17, 2023 at 3:27:44 PM UTC-5, Phil Hobbs wrote:
Fred Bloggs <bloggs.fred...@gmail.com> wrote:
Some manufacturers are saying the 12-24 VDC operating voltage is so >>> common because it makes for more precise positioning of the actuators.I have a nanometer piezo stage that uses 0-3 kV. ;)
Seems like a strange characteristic.
Most people use these more industrial grade components:
https://www.progressiveautomations.com/collections/linear-actuators
Nutty circuit used to brake the actuator with too much loading. I suppose they know what they're doing but it makes no sense to me.
https://www.firgelliauto.com/blogs/tutorials/preventing-backdrive-in-linear-actuators
Why would they want to move 'away' from a limit position?Using an SPDT (Form C) relay makes sense for that. With the pole going to the motor, NC to ground, and NO to battery, the motor will get shorted out when the power is removed.and they usually have an NC switch in parallel with a diode at each end once it reaches an end the switch opens stopping the motor from moving past
the switch and the diode still lets it move away from the switch
lørdag den 18. november 2023 kl. 16.24.45 UTC+1 skrev Fred Bloggs:
On Friday, November 17, 2023 at 8:13:13 PM UTC-5, Lasse Langwadt Christensen wrote:
lørdag den 18. november 2023 kl. 01.58.35 UTC+1 skrev Phil Hobbs:
On 2023-11-17 19:19, Fred Bloggs wrote:
On Friday, November 17, 2023 at 3:27:44 PM UTC-5, Phil Hobbs wrote:
Fred Bloggs <bloggs.fred...@gmail.com> wrote:
Some manufacturers are saying the 12-24 VDC operating voltage is soI have a nanometer piezo stage that uses 0-3 kV. ;)
common because it makes for more precise positioning of the actuators.
Seems like a strange characteristic.
Most people use these more industrial grade components:
https://www.progressiveautomations.com/collections/linear-actuators
Nutty circuit used to brake the actuator with too much loading. I suppose they know what they're doing but it makes no sense to me.
https://www.firgelliauto.com/blogs/tutorials/preventing-backdrive-in-linear-actuators
so it is not one time use...Why would they want to move 'away' from a limit position?Using an SPDT (Form C) relay makes sense for that. With the pole going to the motor, NC to ground, and NO to battery, the motor will get shorted out when the power is removed.and they usually have an NC switch in parallel with a diode at each end once it reaches an end the switch opens stopping the motor from moving past
the switch and the diode still lets it move away from the switch
you feed it one polarity to go one direction, the opposite polarity to go the other direction
when you hit a switch it stops going any further in that direction, but the diode lets you
move it in the opposite direction
On Saturday, November 18, 2023 at 10:29:30 AM UTC-5, Lasse Langwadt Christensen wrote:
lørdag den 18. november 2023 kl. 16.24.45 UTC+1 skrev Fred Bloggs:
On Friday, November 17, 2023 at 8:13:13 PM UTC-5, Lasse Langwadt Christensen wrote:
lørdag den 18. november 2023 kl. 01.58.35 UTC+1 skrev Phil Hobbs:
On 2023-11-17 19:19, Fred Bloggs wrote:
On Friday, November 17, 2023 at 3:27:44 PM UTC-5, Phil Hobbs wrote:
Fred Bloggs <bloggs.fred...@gmail.com> wrote:
Some manufacturers are saying the 12-24 VDC operating voltage is soI have a nanometer piezo stage that uses 0-3 kV. ;)
common because it makes for more precise positioning of the actuators.
Seems like a strange characteristic.
Most people use these more industrial grade components:
https://www.progressiveautomations.com/collections/linear-actuators
Nutty circuit used to brake the actuator with too much loading. I suppose they know what they're doing but it makes no sense to me.
https://www.firgelliauto.com/blogs/tutorials/preventing-backdrive-in-linear-actuators
so it is not one time use...Why would they want to move 'away' from a limit position?Using an SPDT (Form C) relay makes sense for that. With the pole goingand they usually have an NC switch in parallel with a diode at each end
to the motor, NC to ground, and NO to battery, the motor will get shorted out when the power is removed.
once it reaches an end the switch opens stopping the motor from moving past
the switch and the diode still lets it move away from the switch
you feed it one polarity to go one direction, the opposite polarity to go the other directionRight, it finally dawned on me that be 'away' you meant 'reverse'.
when you hit a switch it stops going any further in that direction, but the diode lets you
move it in the opposite direction
| Sysop: | Keyop |
|---|---|
| Location: | Huddersfield, West Yorkshire, UK |
| Users: | 300 |
| Nodes: | 16 (2 / 14) |
| Uptime: | 81:32:42 |
| Calls: | 6,716 |
| Files: | 12,247 |
| Messages: | 5,358,075 |