JPS5768774A - Radiofrequency thawing apparatus - Google Patents
Radiofrequency thawing apparatusInfo
- Publication number
- JPS5768774A JPS5768774A JP14615880A JP14615880A JPS5768774A JP S5768774 A JPS5768774 A JP S5768774A JP 14615880 A JP14615880 A JP 14615880A JP 14615880 A JP14615880 A JP 14615880A JP S5768774 A JPS5768774 A JP S5768774A
- Authority
- JP
- Japan
- Prior art keywords
- thawing
- radiofrequency
- electricity
- circuit
- thawed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To esimate the time necessary for thawing, automatically, and stop the dielectric heating, by detecting the electrical signal corresponding to the radiofrequency output power of the radiofrequency generator at the initial stage of thawing.
CONSTITUTION: The material to be thawed 4 is placed between a pair of electrode 2a and 2b. The low-frequency electricity is rectified with the rectifying circuit 30, and the DC electricity is applied to the radiofrequency (RF) generating circuit 31 and is converted to RF electricity. The RF electricity is applied to the electrodes 2a and 2b and the material to be thawed is heated thereby. In the above process, the RF output level of the RF generating circuit 31 at the initial stage of thawing is detected by the input current detecting circuit 320, and the necessary thawing time is preset by the timer circuit 321 according to the detected output level. After elapsing the preset time, the dielectric heating is stopped by the switching circuit 33 to terminate the thawing.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14615880A JPS6012021B2 (en) | 1980-10-17 | 1980-10-17 | Defrosting time control method for high frequency defrosting machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14615880A JPS6012021B2 (en) | 1980-10-17 | 1980-10-17 | Defrosting time control method for high frequency defrosting machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5768774A true JPS5768774A (en) | 1982-04-27 |
JPS6012021B2 JPS6012021B2 (en) | 1985-03-29 |
Family
ID=15401436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14615880A Expired JPS6012021B2 (en) | 1980-10-17 | 1980-10-17 | Defrosting time control method for high frequency defrosting machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6012021B2 (en) |
-
1980
- 1980-10-17 JP JP14615880A patent/JPS6012021B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6012021B2 (en) | 1985-03-29 |
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