1. The first is the force value sensor of the tension machine. Because the quality of the sensor determines the accuracy and stability of the test machine, the small force value of the sensor for the tensile machine on the market generally uses the S-type sensor. For the radial sensor, the inside of the sensor is generally a strain gauge. If the accuracy of the strain gauge is not high or the rubber used for fixing the strain gauge is not good enough, or the material of the sensor is not good, the accuracy and service life of the sensor will be affected. The imported sensor is the United States 铨力 sensor, the world's famous sensor manufacturer. The sensor used by the company is high in precision, linear, and stable. It will not change for decades.
Feature
Accurate pacing pulse recognition and automatic analysis
Manual, automatic, rhythm, and storage modes
Freezing function: 12 seconds electrocardiogram before and after freezing for back printing
Automatic mode: Review the electrocardiogram 10 seconds before printing, fast/save printing paper
Storage mode: Display parameters and diagnosis are not printed, and electrocardiogram is stored for playback.
AC/DC dual-purpose, built-in large container rechargeable lithium battery
Wide voltage can adapt to 75-265V,50/60Hz AC power supply
12 lead waveform display and 250 case storage (SD card is scalable )
USB and RS232 communication interfaces (ECGNET ECG management software can be selected)
USB host interface supports network transmission, external U disk and USB printer (optional)
High-accuracy thermal printing mechanism, supporting 210/215mm roll paper or 210mm folding paper
Resting Ecg,Ecg System,Resting Ecg System,Portable Ecg Machine Changchun Yingwang Times Digital Co., Ltd. , https://www.ccsdsm.com
2. The second is the ball screw of the component that drives the movement of the sensor. If the screw has a gap, the test data made in the future will directly respond to the large deformation and elongation after the test. At present, some of the screw rods on the market use T-shaped ordinary screw rods, so that the gap is relatively large, and the second is that the friction force is relatively large and the service life is short. The screw used is the high-precision gapless ball of Germany The screw has a surface hardening hardness of HRC58-62 and a service life of several decades. And ensure that the accuracy is unchanged.
3. Again, the transmission system of the tension machine. At present, some of the tension machine transmission systems on the market use reducers, and some use ordinary belts. The main drawbacks of these two transmission methods are: the former requires regular lubrication, and the latter The synchronization of the transmission cannot be guaranteed to affect the test results. Hengyi Instrument's tensile machine transmission system adopts full arc synchronous belt deceleration to ensure the synchronous precision of the transmission, high transmission precision, high efficiency, stable transmission, low noise, and long service life without maintenance.
4. Again, the power source (motor) of the tension machine is also called the motor. At present, some tensile machines on the market use ordinary three-phase motors or variable frequency motors. This type of motor uses analog signal control, which has slow control response and inaccurate positioning. The speed range is narrow, there is no high speed, there is no low speed or low speed, there is no high speed, and the speed control is not accurate. The motor used by Hengyi Instrument's tension machine is Japan Panasonic full digital AC servo motor, and the control mode adopts full digital pulse control. Wide range of speed regulation,
Up to 0.001-1000MM/MIN, accurate control positioning, fast response, 0.01 seconds can be added to full speed, the motor can ensure full-scale speed control accuracy, and long service life, up to several decades, and no maintenance.
5.zui is the measurement and control system of the rally machine (that is, software and hardware). At present, the measurement and control system of most rally machines on the market is controlled by 8-bit MCU, the sampling rate is low, and the anti-interference ability is poor. The converter if the number of bits in the AD converter is also low resolution. Then the measurement will not be accurate.