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| compact_ice:manual [2022/08/08 22:48] – external edit 127.0.0.1 | compact_ice:manual [2022/08/08 22:52] – external edit 127.0.0.1 |
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| ====Temperature Control==== | ====Temperature Control==== |
| After powering up Compact ICE and setting up the terminal for sending commands, the first thing to do is temperature control all components of the system. Temp controls are found on board 4, and there are 4 channels which can be controlled. Channel 2 controls the temperature of the HAL package (the case), Channel 3 controls the temperature of the Master Laser, Channel 4 controls the temperature of the Follower Laser, and Channel 5 controls the temperature of the Vapor Cell with the atomic reference. Channel 1 is left open for control of an external SOA through the SOA TEC connector. | After powering up Compact ICE and setting up the either the terminal or the GUI for sending commands, the first thing to do is temperature control all components of the system. Temperature controls are found on board 4, and there are 5 channels which can be controlled. Channel 2 controls the temperature of the HAL package (the case), Channel 3 controls the temperature of the Master Laser, Channel 4 controls the temperature of the Follower Laser, and Channel 5 controls the temperature of the Vapor Cell with the atomic reference. Channel 1 is left open for control of an external SOA through the SOA TEC connector. |
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| </tabcaption></WRAP> | </tabcaption></WRAP> |
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| The temperatures of all components are preset on shipment. In case the temperature drifts, it is possible to set the temperature of each channel with the ''TEMPSET <ch> <temp>'' command, where "<ch>" is the channel you wish to set the temperature of, and <temp> is a floating point temperature. To check the temperature of a channel, use the ''TEMPSET? <ch>'' command. Always check the temperature setpoint of a channel before turning it on. To enable the temperature servo on a channel, send the ''SERVO <ch> <ON/OFF>'' command. Do this for all channels after checking their setpoint temperature. It is imperative that the temperature servos be enabled before current is sent to the lasers. The ''TERROR? <ch>'' command can be used to monitor the progress of the temperature servo. It will display the difference between the setpoint temperature and the measured actual temperature of the channel in mK. This value reaches a maximum at 0.264mK and a minimum at -0.261 | The temperatures of all components are preset on shipment. In case the temperature drifts, it is possible to set the temperature of each channel with the ''TEMPSET <ch> <temp>'' command, where "<ch>" is the channel you wish to set the temperature of, and <temp> is a floating point temperature. To check the temperature of a channel, use the ''TEMPSET? <ch>'' command. Always check the temperature setpoint of a channel before turning it on. To enable the temperature servo on a channel, send the ''SERVO <ch> <ON/OFF>'' command. Do this for all channels after checking their setpoint temperature. It is imperative that the temperature servos be enabled before current is sent to the lasers. The ''TERROR? <ch>'' command can be used to monitor the progress of the temperature servo. It will display the difference between the setpoint temperature and the measured actual temperature of the channel in mK. This value reaches a maximum at 0.264mK and a minimum at -0.261. Outside of this range, it will only display the appropriate maximum or minimum value. |
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| <imgcaption temp_controls|A GUI representation of the Temperature Control Board with a plot of TERROR showing Ch 2 temperature stabilized and Ch 1 off.>{{ :compact_ice:temperature_control.png?400 |}}</imgcaption> | <imgcaption temp_controls|A GUI representation of the Temperature Control Board with a plot of TERROR showing Ch 2 temperature stabilized and Ch 1 off.>{{ :compact_ice:temperature_control.png?400 |}}</imgcaption> |
| The temperature of the lasers should always be between 15°C and 30°C. Damage to the lasers may occur if their temperature is set outside of this range. | The temperature of the lasers should always be between 15°C and 30°C. Damage to the lasers may occur if their temperature is set outside of this range. |
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| To temperature control Compact ICE through the GUI, navigate to slot 4 by clicking on it in the menu bar on the left-hand side of the screen. The temperature channel can be selected with the buttons at the top of the screen labeled "CH" (1 & 2 | 3 & 4 | 3 & 5), and values can be entered directly into any field with white text. To Enable the servo, press the "Servo On/Off" button. Minimum temperature, maximum temperature, and gain can be adjusted through the vertical bar on the right. | To temperature control Compact ICE through the GUI, navigate to slot 4 by clicking on it in the menu bar on the left-hand side of the screen. The temperature channel can be selected with the buttons at the top of the screen labeled "CH" (1 & 2 | 3 & 4 | 3 & 5), and values can be entered directly into any field with white text. To Enable the servo, press the "Servo On/Off" button. Minimum temperature, maximum temperature, and gain can be adjusted through the vertical "Options" bar on the right. |
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| ====Enabling Lasers==== | ====Enabling Lasers==== |
