Abstract:
A pregnancy monitoring device to be worn on the body, e.g. as a pendant or bracelet, and including a switch (3) arranged to input fetal movements in a given time period to a microprocessor (1) for display (4).
Abstract:
Apparatus for generating an electrical output signal according to the ridges (4) and valleys (3) of a finger (5) placed against a contact surface (10) incorporated in a finger transducer, said contact surface comprising an elastomer (13) with a reflecting layer (15), by directing the beam from a transducer light source (17) at said reflecting layer (15) and detecting the light scattering from said reflecting layer (15). The contact surface (10) comprises a lozenge structure which provides a scattering angle ( theta ) proportional to the pitch (p) of the ridges (4) and valleys (3). The transducer light source (17) comprises a pulsing light source (LED) coupled to an electrical circuit (MCC) designed to control and diagnose the transducer.
Abstract:
The invention proposes that the movements of an object, particularly a person's head, are measured by means of a sensing element (5) rigidly attached to said head. The variations of the light received by this sensor (5) are used as an indication of the movements of the object. By means of suitable electronics and calibrating procedures these measurements can be used for calculating the head movements.
Abstract:
A device for monitoring loads exerted on parts of the body comprises a measuring device (1, 101) for recording a load parameter and an electronic part (3, 103) provided with a device (10) for inputting a desired load range, an evaluation device (16), a display device (9, 15), a microprocessor (18) and a data storage (19) to which measurement data, the analytical data derived therefrom, and data concering the desired load range may be supplied. The microprocessor (18) calculates the ratio between the instantaneous load and the desired range; the comparative data thus obtained are also recorded. Statistical values can be determined and recorded from the recorded values and possibly from actual values. Data can be displayed on the display device (9, 15) as they are being recorded. Recorded data concerning previous loads can be polled by means of a polling device (11). This permits better monitoring of behaviour under load.
Abstract:
According to the invention, the finger of the person to be examined or identified is rolled over a fingerprint surface (4), during which an undistorted contrasty fingerprint is produced in an optical fingerprint device (17). Next, the picture of the fingerprint is directly digitalized, or first recorded by a video camera (6) and then digitalized. From the digitalized data of the finger print picture a grey scale value picture is produced which is then converted into a binary picture and after that is displayed on a monitor (11) and/or stored in a memory (7).
Abstract:
A method of assessment of a physiological state of a portion of an animal body such as the wrist of a human, the method recording the velocity of movement against a selected resistance level useful results being achieved with increasing resistance levels and increasing cycles of action being required when compared against controlled subjects. The invention includes assessment of electrical activity magnitude of controlling muscles at the same time and takes into account additional factors including grip in the case of wrist. The invention is also directed to apparatus which can retain the respective body portions such as the forearm and hand of subject and can record rate of change of position and as an additional feature, magnitude of electrical activity of controlling muscles against a common time base.
Abstract:
The device comprises at least one suspension member (210) provided with means (215) intended to enable a suspension of an animal (A) on each member, preferably by the tail, a sensor (240) sensitive to vertical efforts transmitted by the animal to said member, means (400) for the processing of the signal generated by the sensor during a predetermined experimentation time and intended to evaluate the significant agitation of the animal during that time, and means (360, 365) for displaying the value of said significant agitation.
Abstract:
In order to determine the mobility of body limbs, their position is measured by means of ultrasonic transmitters (1) and receptors (2, 3, 4), disposed partly on the body and partly spatially fixed in the different coordinate axes, based on the measure of the pulse delay. In order to prevent the measures of the pulse delay from interfering with one another, said measures are taken in succession, e.g. so that the pulses of all the ultrasonic transmitters are reciprocally and cyclically time-shifted. Interference and resonance effects are avoided since the frequency ratios of the pulses provided by the ultrasonic transmitters form a prime number sequence.
Abstract:
The device for measuring the position and/or the displacement of a body portion, particularly the rotation thereof, comprises a coupler (1) which is intended to be fixed to the body and a support means (6) for the coupler, the support means being associated to a rotation measuring apparatus which is arranged between the coupler and the support means and preferably forms the link between these two parts.
Abstract:
An Ergometer, preferably personally carried and includes an accelerometer (1). The accelerometer (1) is very sensitive and is adapted for giving a continuous signal corresponding to the momentary acceleration. The ergometer further includes electronic means (2) for calculating momentarily developed force, power and/or energy on the basis of the acceleration signal. The ergometer in one embodiment has a display or indication means (11), e.g. adapted in digital or analogue form to show values for momentary force (11a), momentary force (11a), momentary power (11b) and/or developed work (11c) or energy corresponding thereto and expended by a person. In another embodiment, the ergometer has memory or registration means (12) adapted for storing values at different times for momentary force (11a), momentary power (11b) and/or developed power (11c) or energy corresponding thereto, rendered by a person. It can have means which transmit a signal when a predetermined value of the momentary power and/or the developed work has been attained. The ergometer can finally also have a) a means (3) for measuring and/or registering the number of heartbeats and b) a means for calculating the value of force, power and/or developed work in relation to heart activity.