Contacts type wireless electrocardiogram measurement mechanism
A kind of electrical measurement and wireless technology, applied in the direction of diagnostic recording/measurement, medical science, sensor, etc., can solve the problems of complicated installation, not suitable for carrying around, etc., and achieve the effect of low cost and wide application range
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[0014] The invention includes a contact electrode, an electrocardiogram measuring circuit, an A / D converter, a single chip microcomputer, a keyboard, a display unit, a storage unit, a bluetooth module and the like. See the specific structure figure 1 .
[0015] Contact electrodes are two exposed electrodes of corrosion-resistant metal materials. When measuring, the user holds the device with one hand and touches one of the electrodes, and the other electrode can touch the chest, the palm of the other hand, or the lower limbs to complete the measurement. The two electrodes are respectively connected to the ECG measurement circuit, and the ECG measurement circuit completes the processing of picking up, amplifying and filtering the ECG signal.
[0016] figure 2 It is an implementation scheme of the ECG measurement circuit. Among them, the signals picked up by the first electrode 1 and the second electrode 2 are differentially amplified by the differential amplifier to obtain...
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