Difference between revisions of "Double-C Seismic Accelerometer"

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{{:Double-C Accelerometer/Box}}
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{{:Double-C Seismic Accelerometer/Box}}
  
The '''Double-C Accelerometer''' measure how fast a craft is accelerating.
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The '''Double-C Seismic Accelerometer''' measures how strongly a craft is accelerating. In [[career|career mode]], it is available with [[Electronics]], at level 7 of the [[technology tree]].
 +
 
 +
Currently{{Check version||1.2.2}}, it has "PhysicsSignificance = 1", making it a [[Physicsless part]].
  
 
== Usage ==
 
== Usage ==
 
Attached to the side of an ascent stage this [[environmental sensor]] can be used to control your acceleration during launch to provide a better and constant ascent, using less fuel for the same orbit. The Double-C displays 4 significant figures, offering much better precision than the g-meter on the navball. On upper and cruise stages the Double-C Accelerometer can be used to estimate the time needed to accelerate to a certain speed.
 
Attached to the side of an ascent stage this [[environmental sensor]] can be used to control your acceleration during launch to provide a better and constant ascent, using less fuel for the same orbit. The Double-C displays 4 significant figures, offering much better precision than the g-meter on the navball. On upper and cruise stages the Double-C Accelerometer can be used to estimate the time needed to accelerate to a certain speed.
  
Additionally it can be used to ''measure'' the spacecraft's current mass indirectly using [[w:Newtons_Laws#Newton's_second_law|Newton's second law]]. To estimate the mass, activate the accelerometer and fire the engines so that the craft isn't rotating.
+
Additionally it can be used to ''measure'' the spacecraft's current mass indirectly using [[w:Newtons Laws#Newton's second law|Newton's second law]]. To estimate the mass, activate the accelerometer and fire the engines so that the craft isn't rotating.
  
 
<math style="float:left;padding:.5em;">m=\frac{F}{a}</math> Given the force ''F'' by adding all engines forces together and the acceleration ''a'' by the accelerometer the current mass is the division of both. But as the craft is losing mass by this the acceleration is increasing over time. Thus it's only accurate at a low fuel burn rate over a short period of time. This will also change the craft's orbit, so maybe a retroburn afterwards is necessary.
 
<math style="float:left;padding:.5em;">m=\frac{F}{a}</math> Given the force ''F'' by adding all engines forces together and the acceleration ''a'' by the accelerometer the current mass is the division of both. But as the craft is losing mass by this the acceleration is increasing over time. Thus it's only accurate at a low fuel burn rate over a short period of time. This will also change the craft's orbit, so maybe a retroburn afterwards is necessary.
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Since version 0.20 this method serves little purpose, because the exact mass of a vehicle can be seen in the map view and tracking station.
 
Since version 0.20 this method serves little purpose, because the exact mass of a vehicle can be seen in the map view and tracking station.
  
While active, the accelerometer drains 0.0075 [[Electric Charge]] per second (27 E/hr).
+
While active, the accelerometer drains 0.0075 [[Electric Charge]] per second (27 E/h).
 +
 
 +
Cannot be used(experiment) if the craft is stationary in vacuum.
  
== Description ==
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== Product description ==
 
{{Quote
 
{{Quote
|A device for measuring the local acceleration of a spacecraft (either through movement, or the gravity of a planet). Warranty void if shaken
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|This device contains an extremely sensitive acceleration sensor, which when properly settled on a firm surface, will detect and record accurate seismic activity data. The accelerometer will still function while flying, so the Double-C can also be used to measure accelerations during flight. Warranty void if shaken or exposed to vacuum.
 
|Probodobodyne Inc.}}
 
|Probodobodyne Inc.}}
  
 
== Changes ==
 
== Changes ==
;{{Version|0.22|}}
+
;[[0.23.5]]
* Added Functionality
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* "PhysicsSignificance = 1" added. The part now has 0 mass and drag, despite the listed values.
 
+
;[[0.22]]
 
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* Renamed from ''Double-C Accelerometer'' to ''Double-C Seismic Accelerometer''
;{{Version|0.18|}}
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* Added functionality
* Initial Release
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;[[0.18]]
 +
* Initial release
  
 
{{Parts}}
 
{{Parts}}
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[[Category:Environmental sensors]]
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[[Category:Science]]

Revision as of 18:46, 17 March 2017

Double-C Seismic Accelerometer
Part image
Environmental sensor by
Probodobodyne Inc

Radial size Radial mounted
Cost (total) 6 000.00 Funds
Mass (total) 0.00500 t [N 1]
Drag 0.2 [N 1]
Max. Temp. 1200 K
Volume  ?
Impact Tolerance 8 m/s
Research Electronics.png Electronics
Unlock cost 8 200 Funds
Since version 0.18
Part configuration sensorAccelerometer.cfg
Experiment Seismic Scan
Electricity required 0.0075 ⚡/s

  1. 1.0 1.1 The mass and drag are from the part config, but the game handles it as physicsless.

The Double-C Seismic Accelerometer measures how strongly a craft is accelerating. In career mode, it is available with Electronics, at level 7 of the technology tree.

Currently[outdated], it has "PhysicsSignificance = 1", making it a Physicsless part.

Usage

Attached to the side of an ascent stage this environmental sensor can be used to control your acceleration during launch to provide a better and constant ascent, using less fuel for the same orbit. The Double-C displays 4 significant figures, offering much better precision than the g-meter on the navball. On upper and cruise stages the Double-C Accelerometer can be used to estimate the time needed to accelerate to a certain speed.

Additionally it can be used to measure the spacecraft's current mass indirectly using Newton's second law. To estimate the mass, activate the accelerometer and fire the engines so that the craft isn't rotating.

Given the force F by adding all engines forces together and the acceleration a by the accelerometer the current mass is the division of both. But as the craft is losing mass by this the acceleration is increasing over time. Thus it's only accurate at a low fuel burn rate over a short period of time. This will also change the craft's orbit, so maybe a retroburn afterwards is necessary.

Since version 0.20 this method serves little purpose, because the exact mass of a vehicle can be seen in the map view and tracking station.

While active, the accelerometer drains 0.0075 Electric Charge per second (27 E/h).

Cannot be used(experiment) if the craft is stationary in vacuum.

Product description

This device contains an extremely sensitive acceleration sensor, which when properly settled on a firm surface, will detect and record accurate seismic activity data. The accelerometer will still function while flying, so the Double-C can also be used to measure accelerations during flight. Warranty void if shaken or exposed to vacuum.

Probodobodyne Inc.

Changes

0.23.5
  • "PhysicsSignificance = 1" added. The part now has 0 mass and drag, despite the listed values.
0.22
  • Renamed from Double-C Accelerometer to Double-C Seismic Accelerometer
  • Added functionality
0.18
  • Initial release