CN2910106Y - Medical thermo detector - Google Patents

Abstract

The utility model relates to a medical thermo detector, which is characterized in that: each thermo detector has two sets of current meters to display the temperature, a pair of semi-conductor thermo detector elements (1) and (3) are connected with two variable resistors (2) and (4) to form a bridge circuit. The two ends of the semi-conductor thermo detector element (1) are connected with one end of the variable resistor (2) and of (4) respectively and the other end of the variable resistor (2) and of (4) are connected with the two ends of the semi-conductor thermo element (3) respectively. A joint (5) between the semi-conductor thermo detector element (1) and the variable resistor (4) and a joint (6) between the variable resistor (2) and the semi-conductor thermo detector element (3) are connected with a power supply (12) and a switch connected with the power supply in series. Two sets of current meters (9) and (10) that are connected in series as well as a variable resistor (11) are connected between a joint (7) between the semi-conductor thermo detector element (1) and the variable resistor (2) and a joint (8) between the semi-conductor thermo detector element (3) and the variable resistor (4).

Description

A kind of medical temperature measurer

(1) technical field

This utility model relates to a kind of medical temperature measurer, show the thermometric reading with the galvanometer in the bridge circuit, fine adjustment calibration in 37～42 degree scopes Celsius, every temperature measurer has the galvanometer of two displays temperatures, the galvanometer of a displays temperature and temperature measuring head are placed on by the sick bed, temperature measuring head is placed in the patient's mouth Sublingual when thermometric or is put in the oxter and clamp, the galvanometer of another displays temperature is contained in and is placed on the main frame in medical personnel's night shift room, so can monitor patient's body temperature at any time.

(2) background technology

The adjusting calibration formula electronic bridge measurement instrument of design in 2002, the patent No.: ZL02266489.0 all takes the fine adjustment calibration to the temperature survey in each range, this utility model adopts the galvanometer of two displays temperatures on this basis, one is placed on by the sick bed, another is placed on medical personnel office, so can monitor patient temperature at any time.

(3) summary of the invention

This practical purpose will provide a kind of medical temperature measurer exactly, in 37～42 degree scopes Celsius, can measure human body temperature, error is in .05 degree scope, two galvanometer of displays temperature are simultaneously particularly arranged, can be placed on respectively in the ward and medical personnel's night shift room in so that the monitoring patient temperature.

The purpose of this utility model is achieved like this, adopt a pair of identical quasiconductor temperature element (1), (3) but with the rheostat (2) of two identical fine adjustment, (4) connect into a bridge circuit, be quasiconductor temperature element (1) two ends respectively with rheostat (2), (4) a end is connected, rheostat (2), (4) other end then is connected with the two ends of quasiconductor temperature element (3), two semiconductor elements are in diagonal position, two resistance also are in diagonal position, the joint (6) of the joint (5) of quasiconductor temperature element (1) and rheostat (4) and rheostat (2) and quasiconductor temperature element (3) is with battery or constant voltage dc source (12) and be connected with its placed in-line switch, then be connected between the joint (8) of the joint (7) of quasiconductor temperature element (1) and rheostat (2) and quasiconductor temperature element (3) and rheostat (4) two placed in-line identical galvanometer (9) reach (10) but and the rheostat of placed in-line fine adjustment (11).After dressing up, temperature measurer to contrast the constant temperature mark with normal thermometer, with quasiconductor temperature element (1), (3) one reinstate the mental package that readily conducts heat becomes temperature measuring head, temperature measuring head is placed the thermostatic water bath of temperature-controlled, wherein be inserted with the higher thermometer that can be used as standard of degree of accuracy, the adjustable temperature measuring head that makes is in 36.50 degree Celsius, regulate rheostat (2), (4) make bridge balance, be galvanometer (9), (10) pointer all referred at zero point, in rheostat (2), (4) all engrave 36.50 ℃ on the rotating disk, these two rotating disks keep this position motionless later on, transferring then makes temperature measuring head temperature of living in be elevated to 37.00 ℃, regulating variable resistance (11) refers to from the i.e. position of 5 μ A on the 50 μ A ammeters on the scale of medium-sized lattice 5 little lattice at zero point the galvanometer pointer, on the rotating disk of variable resistance (11), engrave 37.0 ℃ of scales, raise the temperature to 37.50 ℃ again, it is the position of 50 μ A ammeters, 10 μ A that adjusting variable resistance (11) refers at 1 big lattice the galvanometer pointer, on the rotating disk of variable resistance (11), engrave 37.5 ℃, increasing thermoregulation variable resistance (11) so successively engraves temperature and regulates variable resistance (11) make the galvanometer pointer refer to engrave 41.5 ℃ at the full lattice place of 5 big lattice on the rotating disk of variable resistance (11) when temperature measuring head is in 41.50 ℃, and then accent raises the temperature to 42.00 ℃, obviously, this moment, the pointer of ammeter will deflect away from full lattice, regulate variable resistance (11), increase its resistance the galvanometer pointer is referred at Man Gechu, on the rotating disk of variable resistance (11), engrave 42.0 ℃ and put on 41.5-42.0 ℃ at the full lattice place of galvanometric 5 big lattice.One in the galvanometer of temperature measuring head and two displays temperatures will be connected with long electric wire and is placed in the ward, the galvanometer of another displays temperature is contained in and is placed on the main frame in medical personnel's night shift room, when thermometric, the rotating disk that medical personnel should regulate variable resistance (11) makes the reading of pointer indication on the galvanometer of reading and displays temperature on the rotating disk consistent, at this moment, people in the ward also sees the reading of body temperature, if 0～50 μ A ammeter of used is 5 big lattice then each big lattice is 1 degree, every little lattice are 0.1 degree, if pointer refers in the middle of a certain little lattice it is 0.05 degree, by above-mentioned per 0.50 degree calibration a bit, theoretically degree of accuracy can reach ± scope of 0.05 degree in.

(4) description of drawings

Fig. 1 is a kind of circuit diagram of medical temperature measurer, quasiconductor temperature element (1) among the figure, (3) be a pair of identical quasiconductor temperature element, can adopt the quasiconductor thermometric with transistor or critesistor, the outside is protected with the metal thin skin that readily conducts heat and is installed, receive the ward with long four-core electric wire connection from main frame, rheostat (2), (4) be two identical accurate adjustable variable resistance, but each variable resistance can be composed in series with the variable resistance of the less fine adjustment of the stable fixed resistance of resistance and resistance, galvanometer (9), (10) be the galvanometer of two identical displays temperatures, can adopt the microampere meter of 0～50 μ A or 0～100 μ A, in the galvanometer of two displays temperatures one will connect with long electric wire and is placed on by the sick bed, rheostat (11) but fine adjustment, contact wants good rotating disk bigger, so that can put on 37.0～42.0 ℃ scale.

(5) specific implementation method;

Below example is implemented in explanation one, adopts a pair of identical quasiconductor temperature element

(1), (3) be packaged as temperature measuring head with silver, but be connected in the bridge for measuring temperature circuit rheostat (2) with two identical fine adjustment with 20 meters long quads, (4) connect into a bridge circuit, rheostat (2), (4) maximum resistance, should be slightly larger than quasiconductor temperature element (1), (3) resistance value at 36.5 degree Celsius can fine adjustment make bridge balance, quasiconductor temperature element (1) two ends respectively with rheostat (2), (4) a end is connected, two rheostats (2), (4) the other end is connected with the two ends of quasiconductor temperature element (3), quasiconductor temperature element (1) is connected with an end of battery or constant voltage dc source (12) with the joint (5) of rheostat (4), rheostat (2) is connected with on and off switch with the joint (6) of quasiconductor temperature element (3), be connected two placed in-line galvanometer (9) between the joint (8) of quasiconductor temperature element (1) and rheostat (2) joint (7) and quasiconductor temperature element (3) and rheostat (4), (10) but and placed in-line fine adjustment and adorning the rheostat (11) of a traffic cycle, will there be the thermostatic water bath of temperature-controlled in manufacturing enterprise and can be used as the precision thermometer of normal thermometer, error is in ± 0.01 degree scope, the medical temperature measurer of producing will contrast the constant temperature mark with normal thermometer, method is as follows: with quasiconductor temperature element (1), (3) one reinstate silver is packaged into temperature measuring head, temperature measuring head is placed the thermostatic water bath of temperature-controlled, wherein be inserted with the higher precision thermometer that can be used as standard of degree of accuracy, accent makes temperature measuring head be in 36.50 degree Celsius, regulate rheostat (2), (4) make bridge balance, be galvanometer (9), (10) pointer all refers at dead-center position, in rheostat (2), (4) all engrave 36.50 ℃ on the rotating disk, these two rotating disks keep this position motionless later on, then, accent makes the temperature measuring head temperature be elevated to 36.75 ℃, regulate variable resistance (11) and make the galvanometer pointer refer to the position of 2.5 μ A on 0～50 μ A table, transfer again and raise the temperature to 37.00 ℃.Regulating variable resistance (11) makes the galvanometer pointer refer to the position of 5.0 μ A on 0～50 μ A table, put on 37 ℃ in this position, rotating disk at variable resistance (11) engraves 37.0, elevate the temperature again, every the fixed temperature scale of 0.25 degree, increase temperature so successively and be in 41.50 ℃ up to temperature measuring head, regulating variable resistance (11) makes the galvanometer pointer refer to that just in time at the full lattice place of 0～50 μ A table be 50.0 μ A places, rotating disk at variable resistance (11) engraves 41.5 ℃, then, transfer and raise the temperature to 42.00 ℃, obviously, this moment, the pointer of ammeter will deflect away from full lattice, regulate variable resistance (11), increase its resistance and make the galvanometer pointer refer to that just in time the full lattice at 0～50 μ A table are 50 μ A positions, on the rotating disk of variable resistance (11), engrave 42.0 ℃, and put on 41.5-42 ℃ at the full lattice place of ammeter, after this constant temperature is marked with, should spot-check several temperature again and check, should determine error, check qualified can dispatching from the factory by checking people's signature in ± 0.05 degree scope.

Annotate: μ A is the symbol of general representative microampere, 1 microampere=10 ^-6Ampere

Claims (2)

1, a kind of medical temperature measurer, it is characterized in that adopting a pair of identical quasiconductor temperature element (1), (3) but with the rheostat (2) of two identical fine adjustment, (4) connect into a bridge circuit, be quasiconductor temperature element (1) two ends respectively with rheostat (2), (4) a end is connected, rheostat (2), (4) other end then is connected with the two ends of quasiconductor temperature element (3), (1) with the joint (6) of the joint (5) of (4) and (2) and (3) with battery or constant voltage dc source (12) and be connected with its placed in-line switch, then be connected between the joint (8) of the joint (7) of (1) and (2) and (3) and (4) two placed in-line identical galvanometer (9) reach (10) but and the rheostat of placed in-line fine adjustment (11)

2, a kind of medical temperature measurer as claimed in claim 1 is characterized in that adopting two placed in-line identical galvanometer (9) and (10) displays temperature.

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