Pressure measurement devices, methods, and systems

A method for measuring pressure, comprising:

• securing a flow channel to a chassis of a measurement device, the flow channel having a flexible wall with a first mechanical engagement feature presented from an external surface of the flexible wall;
• engaging the first mechanical engagement feature with a complementary engagement member connected to a force transducer;
• the securing being effective to immobilize the flow channel relative to the chassis of the measurement device while allowing the flexible wall to remain displaceable relative to the force transducer;
• detecting at least one of a position and an orientation of the flow channel relative to the force transducer and comparing the at least one of a detected position and a detected orientation to at least one of a predefined position and a predefined orientation;
• generating a signal responsive to the detecting;
• flowing a fluid through the flow channel;
• transmitting forces caused by displacement of the flexible wall through the complementary engagement member to the force transducer;
• and
• generating electrical signals responsively to a state of the force transducer and converting the electrical signals to an indication of the pressure.