CN201096553Y

CN201096553Y - Ultrasonic heat meter

Info

Publication number: CN201096553Y
Application number: CNU2007200444597U
Authority: CN
Inventors: 王松
Original assignee: Xuzhou Runwu Science and Technology Development Co Ltd
Current assignee: Xuzhou Runwu Science and Technology Development Co Ltd
Priority date: 2007-09-30
Filing date: 2007-09-30
Publication date: 2008-08-06
Anticipated expiration: 2017-09-30

Abstract

The utility model discloses an ultrasonic heat quantity meter which belongs to the metrologic instrument and comprises an inlet temperature sensor, an outlet temperature sensor, a display and a power supply, a central processor, an emitter and a receiver of an ultrasonic flow sensor; the inlet temperature sensor and the outlet temperature sensor are connected electrically with the central processor to construct a multi-channel analog signal acquisition loop; the input end of the central processor is connected with the emitter and the receiver of the ultrasonic flow sensor. The ultrasonic heat quantity meter has the advantages that based on the acquisition of the external temperature and ultrasonic flow signals, the A/D circuit, the ultra-low power consumption microprocessor, low-voltage broad pulse emission technique, the adoption of the VLSI design and the automatic control computation of the singlechip internal program, the information used by the user is displayed in Chinese through a LCD; if the situations of malfunction and low electric quantity of the battery appear, the system saves the data and displays the malfunction state, facilitating the safety and maintenance.

Description

Ultrasonic calorimeter

Technical field

The utility model relates to the hot gauging instrument in family of heat supply, specifically is a kind of ultrasonic calorimeter.

Background technology

At present, the heat supplication and consumption measuring apparatus is mostly, but in these technology, do not relate to the high-precision measurement that is used for heating and process of refrigerastion, and temperature, the drift of flow causes the solution of problems such as metering is inaccurate, and can not write down raw data and failure cause when breaking down, make maintenance inconvenient.

Summary of the invention

The purpose of this utility model is the shortcoming of prior art in heating and the process of refrigerastion, and a kind of have high precision and low accuracy are provided, and has the family electronic product of heat (cold) metering of data storage and the multiple function of failure logging.

The technical solution of the utility model is as follows: a kind of ultrasonic calorimeter, comprise inlet temperature sensor, outlet temperature sensor, display and power supply, also comprise central processing unit, the ultrasonic flow sensor of forming by ultrasonic sensor time measuring circuit, ultrasonic sensor converter A, ultrasonic sensor converter gauge tap, ultrasonic sensor converter B, ultrasonic sensor transmitter B and ultrasonic sensor transmitter A transmit and receive device; Inlet temperature sensor and outlet temperature sensor are electrically connected with central processing unit forms the multi-channel analog signal acquisition circuit; The input end of central processing unit connects the device that transmits and receives of ultrasonic flow sensor.

Good effect of the present utility model is: owing to adopted technique scheme, by gathering external temperature and ultrasonic flow signal, through modulus circuit, super low-power consumption microprocessor, low-voltage broad pulse lift-off technology and employing VLSI (very large scale integrated circuit) designs, the single-chip microcomputer internal processes is controlled calculating automatically, the information used the user shows by the full Chinese of LCD, if fault, battery electric quantity deficiency etc., system will preserve data, and the demonstration malfunction helps safety and safeguards.

Description of drawings

Below in conjunction with accompanying drawing and example the utility model is described in further detail.

Fig. 1 is a circuit block diagram of the present utility model;

Fig. 2 is a main program flow chart of the present utility model;

Fig. 3 is the Interrupt Process subroutine flow chart

Among the figure: 1, central processing unit, 2, display, 3, the ultrasonic sensor emission switch, 4, inlet temperature sensor, 5, outlet temperature sensor, 6, communication interface, 7, power supply, 8, ultrasonic sensor time measuring circuit, 9, ultrasonic sensor converter A, 10, ultrasonic sensor converter gauge tap, 11, ultrasonic sensor converter B, 12, ultrasonic sensor transmitter B, 13, ultrasonic sensor transmitter A.

Embodiment

As shown in Figure 1, the utility model comprises that central processing unit 1, central processing unit 1 adopts the single-chip microcomputer with AD translation function, in this single-chip microcomputer stored program shown in Figure 2.The input end of central processing unit connect high precision and high stability ultrasonic flow sensor transmit and receive device, inlet temperature sensor 4 adopts PT1000 temperature sensors, outlet temperature sensor 5 to adopt the PT1000 temperature sensors.PT1000 temperature sensor, PT1000 temperature sensor are electrically connected with central processing unit 1 has formed flow mistiming, inlet temperature sensor resistance, outlet temperature sensor resistance multi-channel analog signal acquisition circuit; The utility model also comprises the display 2 that is connected with central processing unit, is connected the power supply 7 that electric energy is provided to instrument by communication interface 6 with central processing unit.

Central processing unit 1 is by control ultrasonic transmitter switch 3 control ultrasonic transmitter A13 and ultrasonic transmitter B12, control ultrasonic transducer switch 10 control ultrasonic transducer A9 and ultrasonic transducer B10 simultaneously, and carry out the time flow measurement by time measuring circuit 8, central controller is gathered inlet temperature sensor 4 by inner 16 AD conversion, the information of outlet temperature sensor 5, last central processing unit will be gathered next simulating signal through computing, and desired information shown through display 2 by Chinese form and communication module carries out communication, as break down, record data, and prompting.

Claims

1, a kind of ultrasonic calorimeter, comprise inlet temperature sensor (4), outlet temperature sensor (5), display (2) and power supply (7), it is characterized in that, also comprise central processing unit (1), the ultrasonic flow sensor of forming by ultrasonic sensor time measuring circuit (8), ultrasonic sensor converter A (9), ultrasonic sensor converter gauge tap (10), ultrasonic sensor converter B (11), ultrasonic sensor transmitter B (12) and ultrasonic sensor transmitter A (13) transmit and receive device; Inlet temperature sensor (4) and outlet temperature sensor (5) are electrically connected with central processing unit (1) forms the multi-channel analog signal acquisition circuit; The input end of central processing unit connects the device that transmits and receives of ultrasonic flow sensor.

2, ultrasonic calorimeter according to claim 1 is characterized in that: central processing unit (1) is the single-chip microcomputer with AD translation function.