Differenece Between BourdenTube and Diaphram Gauges?

This video is Supporting my 1 subscriber , which commented on my last video, In this video we Describe about Charactarictics of #CtypeBourdenTube #HelelicalBourdenTube#SprialbourdenTube and Expalain where we can use these Gauges and Why, also explain about the differencr about #Diaphram gauges and #Bourdentube And also define about negative pressure. Last video Link . https://youtu.be/23z5P-D37dU https://youtu.be/qZM0EhdUgnI https://youtu.be/zEqIvfl4Zgs https://youtu.be/n4s9NOOvKpc https://youtu.be/qZM0EhdUgnI