Abstract: A length measuring apparatus for measuring length of a measuring object, includes a scale part provided to the measuring object, the scale part having two-dimensional codes with different patterns provided alongside at least in a longitudinal direction; a reading unit configured to read the two-dimensional codes; an obtaining unit configured to obtain coordinate information based on the two-dimensional code; and a conversion unit configured to convert the obtained coordinate information to length information based on a previously generated correspondence between the coordinate information and length information of the measuring object.

Abstract: A length measuring apparatus for measuring length of a measuring object, includes a scale part provided to the measuring object, the scale part having two-dimensional codes with different patterns provided alongside at least in a longitudinal direction; a reading unit configured to read the two-dimensional codes; an obtaining unit configured to obtain coordinate information based on the two-dimensional code ; and a conversion unit configured to convert the obtained coordinate information to length information based on a previously generated correspondence between the coordinate information and length information of the measuring object.

Abstract: A biopotential measurement device (10) includes a measurement unit (14) and a display unit (16). The measurement unit (14) includes electrodes on a measurement surface. The electrodes detect the electric potential, at detection positions, of a living organism facing the measurement surface. The detection positions are determined within the measurement area. The display unit (16) is positionable on a surface opposite the measurement surface. The display unit (16) displays the electric potential detected at each detection position at positions within a display area. The positions within the display area correspond to the detection positions within the measurement area.

Abstract: A biometric measurement apparatus has a measurement unit for measuring bioelectric impedance of different parts of a body and hematocrit. The measurement unit has impedance calculators (IPG1, IPG2) for measuring the impedance of tissues and blood of a living body with a first frequency to output as a first impedance (Z1), and for measuring the impedance of the tissues and blood of the living body with a second frequency to output as a second impedance (Z2), and has pulse wave analyzing units (MS1 and MS2) for analyzing differences of the first impedance between a first time and a second time and difference (?ZH) of the second impedance between the first time and the second time, and a hematocrit calculator (245) for calculating hematocrit based on the difference (?ZL) of the first impedance and the difference (?ZH) of the second impedance.

Abstract: A biometric measurement apparatus has a measurement unit for measuring bioelectric impedance of different parts of a body and hematocrit. The measurement unit has impedance calculators (IPG1, IPG2) for measuring the impedance of tissues and blood of a living body with a first frequency to output as a first impedance (Z1), and for measuring the impedance of the tissues and blood of the living body with a second frequency to output as a second impedance (Z2), and has pulse wave analyzing units (MS1 and MS2) for analyzing differences of the first impedance between a first time and a second time and difference (?ZH) of the second impedance between the first time and the second time, and a hematocrit calculator (245) for calculating hematocrit based on the difference (?ZL) of the first impedance and the difference (?ZH) of the second impedance.