Microwave drying is now being started to be used in Industrial scale. What is the best device to detect and measure Microwave radiations that are potentially leaking from the Microwave driers?
Hi Balakumar,
I think this is not a problem with a formal rule or solution. It is possible to know the situation of the problem. If you need material to detect, there are several detector on the CANBERRA web site and on the last link bellow:
RFD102A: Wireless Energy Harvesting Module
RFD102A-TB: Test Board Assembly
RFD102A-DET: Microwave Energy Detector
RFD102B-TB: Test Board Assembly (higher current)
RFD103A: AC-DC Converter
RFD88A: Solar Engine Module
RFDKIT-01: Energy Harvesting Development Kit
Another links will probably help you to have a point of view on the world microwave situation
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5454286
http://iopscience.iop.org/article/10.1086/305312/meta
http://www.ncbi.nlm.nih.gov/pubmed/26832530
http://www.rfdiagnostics.com/product/microwave-oven-window-energy-harvesting-kit/
Loop antenna with microwave detecting diode can be used to measure the signal
Agreed with Dr Amipara. Simple designs based on sensor principles
Please Google search: Microwave monitor. You will see a host of devices and instruments for microwave field measurement. You may select the NARDA Model NBM-520/550 broadband field meter (usable for frequencies from 100 kHz to 60 GHz) for your work. The full specifications are given in their technical brochure, available in the website. Several probes are also available from NARDA company. These are used also for monitoring fields around magnetron and klystron enclosed installations, e.g., medical accelerators used for cancer treatment; also fields around RF/Microwave diathermy units used for physiotherapy. I had used the old model of NARDA many years ago. Incidentally, grounded copper screens/sheets can be used to shield against RF/ microwave radiation.
GOOD LUCK, Balakumar.
I have gone through the specifications of the Aaronia model. It is quite good. What is the difference in price between the Aaronia and Narda models? Since the questioner has not asked for an inexpensive model and has asked a model for detection AND measurement, I suggested the Narda model. I think Narda has some reputation in this field. Here,too, there are several probe options available and one can select a version suiting his budget. Moreover, we had experience with using the older version of Narda model for many years without any failure. Besides, this model covering a wider frequency range will be useful for other fields of research or industrial applications in his company using RF and microwaves, now or later. Considering these points, I hope my answer is still valid. (Incidentally, in another part of this website, we have been discussing the reported biological effects of RF and microwave radiations and the revised permitted levels, which may be of interest).
We use a Portable Field Meter PMM 8053. You can see the specs at:
https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjRm9u2073NAhWIOhoKHRHqCm4QFggeMAA&url=http%3A%2F%2Fwww.narda-sts.it%2Fincludes%2Fsendfile.asp%3Ffile%3D8053A_EN0704.pdf&usg=AFQjCNFfDZRwFtDG6-mcOWQT2QmcozHB4g
It has a three axis isotropic probe, based on three orthogonal short antennas that sense the electric field. Each antenna has a rectifying diode, so the response of the probe is broadband.
- Badges
- Science topic