Abstract: In a thermal desorption gas spectrometer in which samples placed on a sample stage within a vacuum chamber are heated by irradiation with infrared rays, and in which mass is analyzed by detecting desorbed gas by means of a mass spectrometer, there is provided a processing circuit which takes in the electrical signal that is output by the mass spectrometer. The intensity of this signal is continuously recorded, for each mass of a detected substance, as a function of temperature (or of elapsed time) from the start of heating of the sample to the temperature at which the amount of desorbed gas from the sample becomes extremely small. This signal intensity is integrated with respect to temperature (or time) for each mass. The absolute value of the number of molecules can be obtained by comparing these integrated values with the value obtained for a standard sample.

Abstract: An electronic sphygmomanometer in which the gain of a Korotkoff sound amplifier for recognition of systolic blood pressure differs from that for recognition of diastolic blood pressure. A processor raises the amplifier gain upon recognizing systolic pressure, thereby establishing a mode for recognition of diastolic pressure. Alternatively, a trigger circuit, which produces a trigger signal in response to an input signal from the Korotkoff amplifier, has its threshold level set by the processor to a first value for recognition of systolic pressure and to lower second value for recognition of diastolic pressure, the lower second value being established following recognition of the systolic pressure.