Ultrasonic Sensor: Difference between revisions
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*Common HC-SR04 1 cm accuracy sensor - Sparkfun - [https://www.sparkfun.com/products/13959]. Claims 3 mm resolution, which would work for CNC torch. | *Common HC-SR04 1 cm accuracy sensor - Sparkfun - [https://www.sparkfun.com/products/13959]. Claims 3 mm resolution, which would work for CNC torch. | ||
*Migatron - [http://www.migatron.com/?_vsrefdom=GAW&gclid=CNGJq__Rn9ICFZKHaQodlzUEmA] | *Migatron - [http://www.migatron.com/?_vsrefdom=GAW&gclid=CNGJq__Rn9ICFZKHaQodlzUEmA] | ||
:*High precision - 1/20 of a % accurate, at 5-30" | :*High precision - 1/20 of a % accurate, at 5-30". Only $2000! Not. [https://octopart.com/rps-412a-16-v-migatron-29289381] | ||
=Arduino Simplicity= | =Arduino Simplicity= | ||
Revision as of 20:19, 1 March 2019
- Common HC-SR04 1 cm accuracy sensor - Sparkfun - [1]. Claims 3 mm resolution, which would work for CNC torch.
- Migatron - [2]
- High precision - 1/20 of a % accurate, at 5-30". Only $2000! Not. [3]
Arduino Simplicity
- Thread on the precision of the HC-SR04 sensor - [4]
- 2.5% is the general figure. so for 25 cm distance - get 0.6 cm off.
- Does that imply that for 5 cm distance, we are 0.1 cm off? That would work for the OSE sensor case.
Links
Inquiry to Migatron
- We are working on a CNC torch table for oxyfuel torching of heavy sheet metal. We need to detect distance of the cutting torch from the workpiece by measuring close to the cut line. This means a hot environment with possibility of smoke. Our accuracy of height measurement should be 1/16" (1-2 mm). Can you please suggest one of your products? What is the price?