Physical amount measurement apparatus mounted integrally with flow rate measurement apparatus, and physical amount measurement method

A physical amount measurement apparatus mounted integrally with a flow rate measurement apparatus, for measuring a physical amount, the flow rate measurement apparatus comprising:

• a main body part extending inward from an outside of a main passage of a fluid to be measured, the main body part having a circuit accommodating part formed therein;
• a measurement passage formed on a tip side of the main body part, for causing a part of the fluid to be measured to flow therethrough, the measurement passage having a flow rate detection part arranged therein;
• and
• a flow rate detection circuit part, which is arranged in the circuit accommodating part, to generate a signal representing a result of detection of a flow rate by the flow rate detection part;
• and
• the physical amount measurement apparatus comprising:
• a physical amount detection part to detect a physical amount relating to the fluid to be measured in the flow rate measurement apparatus;
• and
• a physical amount detection circuit part, which is arranged in the circuit accommodating part, to generate a signal acquired by carrying out phase lead correction on a signal representing a result of detection the physical amount detection part,
• wherein the physical amount detection circuit part comprises a digital filter to carry out the phase lead correction.

A physical amount measurement method for a physical amount measurement apparatus mounted integrally with a flow rate measurement apparatus, in measurement of a physical amount of a fluid to be measured for adjusting a value detected by the flow rate measurement apparatus,

• the flow rate measurement apparatus which accommodates a flow rate detection circuit part configured to generate a signal representing a result of detection of a flow rate of the fluid to be measured detected by a flow rate detection part in a main body part extending inward from an outside of a main passage of the fluid to be measured,
• the flow rate measurement apparatus comprising a measurement passage formed on a tip side of the main body part, for causing a part of the fluid to be measured to flow therethrough, the measurement passage having the flow rate detection part arranged therein,
• the physical amount measurement method comprising:
• detecting, by the physical amount measurement apparatus mounted integrally with the flow rate measurement apparatus, a physical amount relating to the fluid to be measured in the flow rate measurement apparatus;
• and
• carrying out, by the physical amount measurement apparatus, a phase lead correction on a signal representing a result of detection of the physical amount.