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I was thinking that I could use an insulated conductor for the capacitor whether it be an insulated PCB (possibly flexible) or something else entirely.
Hi Nik_2213, vitoa touches on this in the thread linked in my first post. Measurements taken at lower frequencies are affected by minerals in the soil whereas measurements taken at 100MHz are not. I don't want the readings to change when fertiliser is applied for example.
Hi BradtheRad, thanks for the feedback. Fortunately my tractor cabin is enclosed and air conditioned/heated and gloves aren't worn. Sunlight shining on the display could definitely be a problem though. I might have to construct a cover to provide some shade.
Hi Klaus,
Thank you for the suggestion. The "mounted in a box and mounted in a tractor cabin" and "minimum of 5" in size" where the requirements. Someone suggested SmartiPi touch and back cover from Smarticase which can house a raspberry pi and the 7" raspberry pi display. The SmartiPi touch...
Following on from this thread (can't post there because it's closed):
https://www.edaboard.com/showthread.php?353365-Use-RF-100MHz-to-measure-soil-moisture-IC-generator-plus-IC-detector
The idea is to build a capacitance soil moisture probe operating at a high frequency (~100MHz). As mentioned...
Can anyone suggest a display that can easily be mounted in a box and mounted in a tractor cabin? The display should be a minimum of 5" in size. Touchscreen and colour are desirable, but not mandatory.
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