Arterial pulse signal measurement device and pressure sensor

A pressure sensor of an arterial pulse signal measurement device, configured to be connected to a measuring apparatus in the arterial pulse signal measurement device, the pressure sensor comprising:

• a substrate;
• a pressure sensing detection circuit arranged on the substrate;
• the pressure sensing detection circuit comprising a first resistor, a second resistor, a third resistor and a fourth resistor, wherein at least one of the first resistor, the second resistor, the third resistor and the fourth resistor comprises a strain sensing resistor;
• wherein the first resistor, the third resistor, the second resistor and the fourth resistor are electrically connected sequentially to form a full bridge circuit, a common terminal of the first resistor and the fourth resistor providing a first voltage input terminal of the pressure sensor, a common terminal of the second resistor and the third resistor providing a second voltage input terminal of the pressure sensor, a common terminal of the first resistor and the third resistor providing a voltage output terminal of the pressure sensor and being configured to connect with the measuring apparatus, and a common terminal of the second resistor and the fourth resistor being configured to be grounded;
• wherein when the pressure sensor is applied to the skin, stratum corneum or another superficial organ of a human body or animal body, and the first voltage input terminal and the second voltage input terminal of the pressure sensor are applied with a constant voltage, the pressure sensor will output a corresponding voltage signal to the measuring apparatus according to an arterial pulse of the human body or animal body, and the measuring apparatus will acquire an arterial pulse signal of the human body or animal body according to said voltage signal.